engineerin - American Radio History

A VIcGRAW-HILL PUBTICArION
PRICE ONE DOLLAR
DECEMBER 19, 1958
In This Issue
INDEX TO
ELECTRONICS
engineerin
ARTICLES
For 1958
DIGITAL VOLTMETER, $825
JUST
7"
HIGH!
(4>
Automatic range and polarity selection.
Just apply the probe
and read voltage directly!
4 405AR DC DIGITAL VOLTMETER is a completely new instrument providing, literally, "touch -and -read" voltage measurements between 1 and 1,000 volts. Range, even polarity, are automatically selected. Readout is in -line, in bright, steady numerals.
New, novel circuitry pr-.,:e.e; a stab.:!ity of readings virtually
eliminating jitter in the 1,;st eigit. This reduces operator fatigue
and avoids uncertainty.
Special features include a floating input, electronic analog -to digital conversion, digital recorder output and front -panel "hold"
control permitting manual positioning of decimal. Voltage sam-
pling rate is variably from l reading every 5 seconds to 5 per
second; or can be controlled externally by a 20 v positive pulse.
BRIEF SPECIFICATIONS
Range: 0.00i. to 999 v ac; 4 ranges.
Presentation: 3 significant figures, polarity Indicator
Accuracy: ±0.22% full scale ± 1 count
Ranging time: 1/ sec to 2 sec
Input impedancz. 11 megohms io dc, all ranges
Response time: Less than 1 sec
AC rejection: 3 db at 0.7 cps; min. 50 db at 60 cps
Price: $825.00
Data subject to change without noise. Price f.,.b. factory.
HEWLETT-PACKARD COMPANY
5100A PAGE MILL ROAD PALO
CABLE "HEWPACK" DA':
F,ELD RE.'' E
CALIFORNIA, U.S.A.
5-4451
.4TATIVES IN ALL PRINCIPAL AREAS
electronics
engineering issue
A MCGRAW-HILL PUBLICATION VOL. 31, NO. 51 DECEMBER 19, 1958
H. W. MATEER, Publisher
JAMES
Issue at a Glance
Associate
GIRDWOOD,
Publisher
W. W. MacDONALD, Editor
Editor,
Managing
Carroll.
John
M.
B-3 Stcllarator. Panel regulates 50,000 -gauss magnetic field in tube see;
through window. By squeezing deuterium gas in such a field, physicists
COVER
hope to create thermonuclear power. See p 75
Feature Editor, John Markus.
Associate Editors: John M. Kinn,
Jr., Frank Leary, Michael
F.
To-
maino, Howard K. Janis, Sylvester
P. Carter, Haig A. Manoogian,
Roland J. Charest, William P.
O'Brien, George Sideris, Edward
DeJongh, John F. Mason, William
F
Bushor,
Ronald
K.
Jurgen,
Thomas Emma, Samuel Weber.
Pacific Coast Editor (Los Angeles)
Harold C. Hood; Midwestern Editor
(Chicago) Harold Harris; New England Editor (Boston) Thomas Maguire.
7
Business Briefs
Fred
Electronics Newsletter
7
Space Electronics Group
Figures of the Week
Missile System Goes to Sea
New Equipment For Moon Shot
7
Tv Construction B. Spins Overseas
8
Military Electronics
C -C Tv Speeds Freight
Sees Transistors Opening New Era
Financial Roundup
Meetings Ahead
British Exports Setting Record
New Conference Idea Succeeds
Washington Outlook
8
12
12
12
Annual Index to Engineering Articles
14
14
14
14
16
16
16
p 35
Art Director, Harry Phillips, Roy
Thompsen
Editor,
Production
John
C.
Wright, Jr. Bernice Duffy, Jean L.
Malin.
Research,
Charles
E.
Our Stake in Thermonuclear Power. Electronic components and instruments
p 75
play major role in recently declassified experiments
By John M. Carroll
Graham,
Marilyn Koren.
Editorial Assistants, Gloria J.
Filippone, Arlene Schilp, Patricia
Catherine
McDermott,
Landers,
Eleanor Schaefer, Carol Weaver.
JAMES GIRDWOOD, Advertising
Sales Manager, R. S. Quint, Assistant Advertising Sales Manager
and Buyers' Guide Manager. Fred
Manager.
Promotion
Stewart,
Frank H. Ward, Business Manager.
George E. Pomeroy, Classified
Manager. Hugh J. Quinn, Acting
Circulation Manager.
New York: Donald H. Miller,
Henry M. Shaw, Martin J. Gallay.
Boston: Wm. S. Hodgkinson. Philadelphia: James T. Hauptli. Chicago: Bruce Winner. Cleveland:
Warren H. Gardner. San Francisco:
T. H. Carmody, R. C. Alcorn. Los
Angeles: Carl W. Dysinger, D.
A. McMillan. Denver: J. Patten.
Atlanta: M. Miller. Dallas: Gordon L Jones, Robert T. Wood.
London: E. E. Schirmer.
Michael R. Zeynel.
Frankfurt:
Electronic Simulator Gives Countermeasures Targets. Electronic countermeasures simulator injects a signal into either the video, i-f or r -f section
p 78
of a radar receiver
By Leopold Sternlicht
Crystals Stabilize Multichannel F -M 'Monitor. Crystal -controlled ten -chanp 81
nel f -m monitor is versatile instrument for broadcast stations
By Lester A. Karg
Watch Timer With Precise Time Base. Novel time base combines high
linearity, low current drain, rapid flyback, stability and suitability for low p 84
frequencies
By S. T. Kiewicd
Split Reflector for Microwave Antennas. Antenna designer of microwave
equipment is provided with new technique to correct impedance misp. 86
match of pill box line feed antennas
By R. L. Mattingley, B. McCabe and M. J. Traube
DIGEST CONTINUED ON NEXT PAGE
electronics
DIGEST continued
Dec. 19, 1958
Bistable Circuits Using Unijunction Transistors. Use of unijunction transistor in circuit design provides parts economy, decreases power requirements and increases switching speed
p. 89
By T. P. Sylvan
Phase -Selective Gate Rejects Quadrature. Diode gate, controlled by reference
voltage, permits conduction only when in -phase component of signal
is maximum and quadrature is minimum
p 92
By Benjamin Fennick
X.
e Resonator Chart.
Nomograph simplifies calculations required to
design capacitance -shortened quarter -wavelength transmission -line resonators
p 94
By meter Dauksher
_Am
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96
Magnetic Amplifiers Measure D -C.
96
Issue and
p 100
$40.00 for
98
Circuit Evens Scope Brightness... 96
By M. H. Goosey, Jr., and A. C.
By J. K. Goodwin
Lapsley
Photocells Let Paraplegics Type.. 99
Component Design
Bridge Features Automatic Dial. 100
Four-Codttetor Stretch Cable... 100
New Synchro Design
102
Production Techniques
p 106
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Vol. 31, No. 51
Press
Six
3;
112
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p 141
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p 142
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Comment
p 144
'BP
Index to Advertisers
p 151
Member ABP and ABC
Precise MEASUREMENT
of CAPACITANCE and DISSIPATION FACTOR
* Direct reading dissipation -factor range ... 0.00002
to 0.56; accuracy ±2%.
* Direct measurement of capacitance from 100 to
1150 i.ti2f; up to 1µf at 1 kc .
substitution method.
* High accuracy
.
.
.
.
.
down to 0.1
/.11.Lf by
* Instruments in assembly can be used separately
without electrical or mechanical changes.
±0.1% with direct method;
0.2% with substitution method.
For MEASUREMENTS
For MEASUREMENTS
from 30c to 100 kc
at One Megacyci
three -terminal
or
two
For
Type
measurements ... Type 1610-A
Capacitance Measuring Assembly ... $2,090.
For
two -terminal measure.
Type 1610-A2
ments only
Capacitance Measuring Assembly
Capacitance
1/14-M ONE -MEGACYCLE UNIT OS.
. .
Compact package supplies 300 mw into 50 ohms.
CILLATOR .
.
.
1610-AH
Measuring Assembly ... $995.
$1,795.
1212-A UNIT NULL DETECTOR and
1203-B UNIT POWER SUPPLY ... Useful from 20c to 5 Mc . . . logarithmic
response gives 120-db on -scale range
1302-A OSCILLATOR.. An R -C oscillator covering 10 c to 100 kc in four
ranges .. supplies 80 mw into 5000 ohm load.
40-uv input at I kc will produce
1% meter deflection, yet 100 v is re-
.
quired to drive meter off scale.
1231 -BRA AMPLIFIER AND NULL DE'
TECTOR ...Linear amplifier for general
laboratory use, logarithmic response
for bridge measurements ... less than
25 uv at 1 kc for 1% indication.
1212-P? ONE -MEGACYCLE FILTER ...
Provides 20-dh insertion gain at 1 Mc
when used wife I21Z-A and 716-CS1.
If
716-CS1 CAPACITANCE BRIDGE .
For use from 0.5 to 3 Mc (bridge direct
reading at 1 Mc). Range: direct method, 100 to 1150 gut; substitution
method, 0.1 to 1050 ixpf ; otherwise
identical to 716-C Capacitance Bridge.
1231-P5 ADJUSTABLE FILTER ... Reauceb
harmonics
background
and
noise; at least 30-db second -harmonic
rejection. Eleven fixed settings from
50c to 100 kc in 1-2-5 sequence. May
be tuned to any frequency between
20 c and
100 kc by adding external
capacitors.
716-P4 GUARD CIRCUIT Tsupplied
with 1610-A only)
Permits im
.
.
.
pedance measurements between two -
terminals of a three -terminal network
... also useful for eliminating the et
fects of lead capacitance.
716-C CAPACITANCE BRIDGE ... THE HEART OF THE SYSTEM
... Useful for measurements from 30c to 300 kc ... can also be used tor measuring dielectric
properties of insulatirg materials, resistance and parallel capacitance of high -value resistors,
inductance and storage factor of inductors, and characteristics of electrolytes and other
materials through capacitance measuring techniques.
Type 1690-A DIELECTRIC
Type 1691-A CAPACITOR
TEST FIXTURE ... $22.50
Provides a standard means for attaching
capacitors, eliminating variable lead
capacitance. Particularly useful for high frequency measurements.
SAMPLE HOLDER ... $435.00
Readily attaches to b;idge terminals permitting precise
determinations of dielectric constant and dissipation factor of solid materials. Micrometer -driven electrodes
measure sample thickness accurately. Sample size is
standard ASTM 2 -inch -diameter disc. Useful to at least
100 Mc.
GENERAL RADIO Company
NEW YORK AREA: Tel. N. Y. WOrth 4.2722, N. J. wHitney 3.3140 CHICAGO: Tel. Village 8.9400
WASHINGTON, D. C.: Tel. 1Untper 5-1088
PHILADELPHIA: Tel. HAncock 4-7419
LOS ANGELES 38: Tel. H011ywood 9-6201
SAN FRANCISCO: Tel. WIttechtt 8-8233
71
In CANADA, TORONTO: Tel. Client,
ELECTRONICS engineering issue - December 19, 19558
Write for Complete Information.
WE SELL DIRECT. Our District Sales
Offices are staffed by engineers especially
trained to help you in the selection of instruments and measuring systems best suited
to your needs. We welcome your inquirieswill help solve your problems.
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amplifier klystrons, negative grid and traveling wave tubes.
EITEL-McCULLOUGH, INC.
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ELECTRONICS engineering issue - December 19, 1958
CIRCLE 3 READERS SERVICE CARD
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SILICON TRANSISTORS
Specify RAYTHEON and get these
significant advantages:
Higher, more constant beta
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ASae
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FOR LARGE SIGNAL APPLICATIONS
Temperature Range -65°C to +160°C
IE0 or Ico
TO.9
Type
1-
HcEt
ave.
volts
P
2N327A
2N328A
2N329A
2N330A
0.005
0.005
0.005
0.005
-40
-35
-30
-30
N
P
N
2N619
2N620
2N621
2N622
0.005
0.005
0.005
0.005
50
15
40
30
30
30
N
fli
r,
f = 1Mc
µA
p
0.260'
Vice
max.
at Vice =20 Vdc
0.335
15
cob
fob
t = 100Kc
ave.
ave.
db (max.)
At
Kc
65
65
65
65
ohms
lolohms
30
60
25
Noise
Figure
1200
1400
1500
1300
500
500
500
500
30
30
30
2000
2500
2700
2400
500
500
500
500
30
30
30
15
,
200
300
400
250
E3.51
V4 -N1
.Q.
0370'
60
25
35
35
35
35
15
200
350
500
300
flor PNP, IB = -0.1mA; Vcc = -0.5V; for NPN, Ix = 0.5mA; Vcc = I.5V
FOR SMALL SIGNAL APPLICATIONS
Temperature Range -65°C to +160°C
40 Or Ico
TO -9
Type
0.335
T-
P
N
P
ave.
µA
volts
2N1034
2N1035
2N1036
2N1037
0.005
0.005
0.005
0.005
-40
-35
-30
-35
2N1074
2N1075
2N1076
2N1077
0.005
0.005
0.005
0.005
50
15
40
30
30
30
60
25
m
rnaL
hoe
Noise'
Figure
max.
0.260'
hie'
VCC
at Vcc = 20 Vdc
15
30
60
30
MU.
cob
I = lOOKc
tab
max.
ohms
;Athos
db
t,Af
Kc
3000
3000
3000
3000
70
85
100
85
30
30
30
65
65
65
65
200
300
3500
3500
3500
3500
70
85
100
85
30
30
30
35
200
350
500
300
ave.
15
ave.
400
250
E3-51
.."'
-07
0.370'
IIUM
-
N
p
N
15
35.
35
35
Vc = 5V;IE = 3mA
SEMICONDUCTOR DIVISION
Needham Heights, Massachusetts
SILICON AND GERMANIUM DIODES AND TRANSISTORS SILICON RECTIFIERS
6
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NEW YORK
5E19 Fifth Ave., PLazo 9-3900
CHICAGO: 9501 Grand Ave., Franklin Park, NAtional 5-6130
LOS ANGELES: 5236 Santa Monica Blvd., NOrmandy 5-4221
December 19, 1958 - ELECTRONICS engineering issue
BUSINESS BRIEFS
ELECTRONICS NEWSLETTER
SUBMARINE ELECTRONICS
development,
much of it now only in the idea stage, may hold
the key to effective antisub warfare in the future.
SMALL ELECTRONICS FIRMS' hopes for more
military business may be buoyed in 1959. Rea-
son: The last Congress made the Small Business Administration a permanent agency and
strengthened it through the Small Business
This was indicated in a recent talk to the National Security Industrial Association in New
York by Capt. Richard B. Laning, USN, who
Investment Act that authorized SBA to advance
$250 million for long-term needs. SBA's job
commanded the atomic submarine Seawolf during its voyage under the Arctic icecap. Broad
design objectives, Laning indicated, are: use of
more automatic devices, fewer men; miniaturized electronic digital computers and communications gear; smaller and improved sensors and
data -handling systems; and generally increased
reliability of parts. Laning, newly assigned to
the office of the Chief of Naval Operations,
invited industry inquiries, said further elaboration of needs can't be made public.
is to loan money, get small business its share
of military work. New agency stature is seen
in recent blanket contract set -asides that it
arranged with the armed services for small business; these were previously negotiated for individual contracts.
SOLID-STATE commercial data-processing system
using magnetic amplifiers was announced this
Equip-
month by Remington Rand Univac.
ment will rent at $6,950
purchase price of $347,500.
a
month, with
Firm said U.S.
deliveries would start next June. Solid-state
sophistication is said to reduce computer size,
JAPANESE ELECTRONIC products made under
license agreements with U. S. firms at relatively
low unit cost will be bought by American firms
and sold in world markets. That's the implication of a long-range export program with Gen-
maintenance problems and power requirement.
Novel 18,000 rpm drum holds 50,000 characters.
eral Electric just announced by Toshiba, 20
percent owned by GE. Transistors, tubes, other
electronic devices and, apparently, assembled
radio and tv sets are involved. Products will be
branded "GE Made in Japan" and will be sold
only outside the U. S. Two other U. S. firms
are reported negotiating with Hitachi and Mitsubishi for similar agreements.
SOVIET SCIENTISTS may be experimenting with
a tv
relay station aboard an earth satellite,
according to an Oslo newspaper. Tv sets in
Larvik, Norway, which often pick up Soviet
tv programs, recently received a new test program. Difference: antennas were turned to the
west; as many as five "ghosts" appeared at times.
111111111111111
014ssian am.
^''.
300
200 "iD
100
MAY
JUNE
JULY
SEPT
(CT
THE \A/FEK
FIGURES OF THE YEAR
Television sets, total
Radio sets, total
Auto sets
Nov. 28, '58
99,618
338,887
109,098
Nov. 21, '58
116,530
390,019
137,678
Nov. 29, '57
123,844
357,881
109,372
STOCK PRICE AVERAGES
(Source: Standard & Poor's)
Radioty & electronics
Radio broadcasters
Dec. 3, '58
74.02
77.13
Nov. 26, '58
68.96
73.77
Dec. 4, '57
44.84
53.65
ELECTRONICS engineering issue - December 19, 1958
Totals for first nine months
Percent Change
1958
1957
291,718,000
341,663,000
30,387,277
18,842,300
+61.3
Cathode-ray tube sales
5,844,665
7,308,552
Television set production
3,572,189
4,589,164
Radio set production
8,178,821
10,764,454
TV set sales
3,468,090
4,452,041
-20.0
-22.2
-24.0
-22.1
4,903,676
5,840,372
-16.0
RECEIVER PRODUCTION
(Source: EIA)
0
NOV
RECEIVER PRODUCTION
ELECTRONICS PRODUCTION INDEX
F!GtPFS
AUG
Receiving tube sales
Transistor sales
Radio set sales
(excl. auto)
-14.6
7
f
consists of more than two dozen
Polaris test vehicle will get first ocean launching from recently -commissioned
USS Observation Island as
.
.
.
enclosures and consoles.
Other Sperry navigation gear includes Loran -C, a dual gyro -compass system; a Jog Log, a means of
measuring ocean currents; and an
automatic steering system.
Polaris missile system development is managed by Lockheed.
In addition to coordination of
overall design, research, development and test programs, Lockheed
is developing the missile frame
and reentry body. Firm also operates the flight test base at Canaveral
for the Navy and is coordinating
Missile System Goes to Sea
New electronic -laden ship swings into operation in Navy's Fleet Ballistic Missile Program
an on-the-job training program for
Navy personnel.
Missile guidance is the responsibility of GE and MIT. Launching
and handling system is by Westinghouse.
Instrumentation
is
by
Interstate Electronic Corp. SINS
NORFOLK NAVAL SHIPYARD,
VA.-Navy's Fleet Ballistic Missile Program recently took a big
step forward here with the commissioning of the USS Observation
Island, a floating electronic test bed
and launching pad for Polaris.
The converted 17,600 -ton vessel
will be a proving ground for the
Polaris missile, as well as for launching, handling, fire control and
navigation equipment and for the
Navy operational crew. Much of
the electronic equipment on the
new ship is gear that has been
successfully checked out on the
earlier experimental ship, the USS
Compass Island (ELECTRONICS,
conditions encountered at sea.
Navigation gear on the two
experimental ships is Sperry's dual
SINS (Ship's Inertial Navigation
System ), which was successfully
checked out on the Compass Island.
Working in conjunction with
SINS will be Sperry's NAVDAC
for the five future Polaris submarines are being developed by
both Sperry and Autonetics div. of
North American. The first sub, the
USS George Washington, is sched-
uled to be launched next spring.
The entire Polaris system is slated
to be operational in 1960.
(Navigation Data Assimilation Cen-
ter), a system which takes all
navigational data from other sources-sonar, celestial fixes and dead
reckoning-and then collates, an
alyzes, decodes and automatically
feeds
the information back into
the system.
The new ship's fire control sys-
New Equipment
For Moon Shot
FOURTH U. S. shot at the moon,
and first one for the Army Ballistic
Agency,
differed considerably in
p 28, Mar. 7).
Going one step further than its
tem, developed by GE, will continually provide accurate informa-
planned trajectory and equipment
used from previous three USAF
predecessor, the Observation Island
will actually launch Polaris test
position,
direction and speed to the missile
attempts.
Army employed a Jupiter IRBM
as booster, 11 scaled -down \Vac
tion
on
missiles. Navy says the new ship
"ranks in evolution with the first
carrier operated aircraft, inasmuch
guidance
as this is the first time the com-
for.
plete ballistic missile system has
been taken to sea."
A week before the commissioning, a dummy slug was fired from
the ship into the Elizabeth River.
Future launchings will take place
in the Atlantic off the coast of
Cape Canaveral. Ground -based
launchings, meanwhile, will continue from Cape Canaveral's Ship's
Motion Simulator. The equipment
was designed and manufactured by
the Loewy Hvdropress div. of Baldwin -Lima -Hamilton to simulate
8
the
vessel's
equipment.
Ship mo-
tions, such as roll, pitch, yaw and
others, arc automatically accounted
Precalculated target data
is fed
The
intelligence thus derived is transmitted to the missile's guidance
system by Sperry's Gyro Transfer
There
Table System (GTTS )
will be two GTTS aboard Observation Island.
The fire control system also
provides data required for operational control of the missile launching, including monitoring and controlling countdown.
The entire fire control system
into computers
manually.
.
Sergeants for second stage, three
\Vac Sergeants for third stage, and
a single one attached to the 13 -lb
payload as the fourth stage.
Instead of achieving a lunar
orbit, Army's payload, developed
and put together
at CalTech's
JPL, was designed to pass the moon
and orbit around the sun. It didn't
reach goal, but went 66,654 mi.
Central data collection was at
JPL, where an IBM 704 was recently installed for data reduction
chores.
Three Microlock stations, operating on different frequency than
(Continued on p 12)
December 19, 1958 - ELECTRONICS engineering issue
LAMBDA'S ALL -TRANSISTOR LINE
Delivered now Guaranteed for five years
FOUR NEW POWER SUPPLIES
11...A.1143311DA.
REGULATED POWER SUPPLY
CR
04104,
yy
run
THElhotAL
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1 -AMP and 2 -AMP CONVECTION COOLED
No internal blowers No moving parts
0-32 VDC
0-2 AMP
0-1 AMP
Ambient 50° C at full rating.
High efficiency radiator heat sinks.
Silicon rectifier.
50-400 cycles input.
Special, high -purity foil, long -life
electrolytics.
Model LT 1095
$285
Model LT 1095M (metered)
Model LT 2095
$315
$365
Model LT 2095M (metered)
$395
All transistor. No tubes.
Fast transient response.
Compact. Only 31/2" panel height.
Short-circuit proof.
Excess ambient thermal protection.
Excellent regulation. Low output impedance.
Low ripple.
Remote sensing and DC vernier.
Protected by magnetic circuit breakers.
Hermetically -sealed transformer. Designed to M I L-T27A.
CONDENSED DATA
Voltage Bands
Line Regulation
.
.
..0-8, 8-16, 16-24, 24-32 VDC
. Better than 0.15 per cent
.
or 20 millivolts
Electrical Overload Protection
...Magnetic circuit breaker, front panel
(whichever is greater). For input variations
from 105-125 VAC.
Load Regulation.
AC Input
.
. Better than 0.15 per cent or 20 millivolts
(whichever is greater). For load variations
from 0 to full load.
105-125 VAC, 50-400 CPS
Thermal Over-
load Protection ...
Size
mounted. Unit cannot be injured by short circuit or overload.
Thermostat, manual reset, rear of chassis.
Thermal overload indicator light,front panel.
31/2" H x 19" W x 143/8" D.
Send for complete LAMBDA L -T data.
LAMEUDA.
Electronics Corp.
COLLEGE POINT 56, NEW YORK
11-11 131 STREET
INDEPENDENCE 1-8500
Cable Address: Lambdatron, New York
LE 5 READERS SERVICE CARD
For Alnico Magnets-Stock or Special
ce*MVOZOI"
best bet when looking for
a source of Alnico magnets and
YOUR
/liareide:at
Cast Alnico Magnets are most com-
monly made in Alnico V and VI.
Sintered Alnico Magnets usually are
made in Alnico II, V or VI. Special
permanent magnet materials include
Vicalloy, Cunife, and Arnox.
4tee/dxf naa
Write for your copy of Bulletin GC 106C, a general catalog of all Arnold
products. It contains useful data on
the physical and magnetic properties
of Alnico Magnets. Lists stock items
and standard tolerances for cast and
assemblies is Arnold-producer of
the most complete line of magnetic
materials in the industry.
Arnold can supply your need for
any size or shape of Alnico magnet.
Weights range from less than a gram
to 75 pounds or more. Die-cast or
sand-cast aluminum jackets, Celastic covers, etc., can be supplied as
required. Complete assemblies are
available with Permendur, steel or
as specified-magnetized and stabilized according to the requirements
of the application.
A wide range of the more popular
shapes and sizes of cast and sintered
magnets are carried in stock at
Arnold. Unsurpassed plant facilities
make possible quick delivery of all
special orders.
Let us handle your permanent magnet requirements, or any other magnetic
material specification you may have.
WSW 61376 D
THE ARNOLD ENGINEERING COMPANY
sintered magnets-also stock sizes
and pertinent data on tape cores,
powder cores, C & E cut cores, etc.
ADDRESS DEPT. E-812
10
aluminum bases, inserts and keepers
CIRCLE 6 READERS SERVICE CARD
Main Office & Plant: Marengo, Illinois
Repath Pacific Division Plant: 641 East 61st Street, Los Angeles, Calif.
District Sales Offices:
Boston: 49 Waltham St., Lexington Los Angeles: 3450 Wilshire Blvd.
New York: 350 Fifth Ave. Washington, D.C.: 1001 -15th St., N.W.
December 19, 1958 - ELECTRONICS engineering issue
W
UBMINIATURES fo
ransistor Circuittj,
CAPACITORS
HERMETICALLY SEALED
METAL ENCLOSED MYLAR DIELECTRIC
Six rugged new capacitor types designed SPECIFICALLY to SAVE
SPACE in compact, transistorized assemblies. Two temperature ranges
to choose from. All types rated for 500 -hours accelerated life testing.
Full rated to 125°C
Full Rated to 85°C
Type 616C (Extended foil)
Type 617G (Extended foil)
Temperature Range -Full rating to 125°C - to
150°C with 50% derating.
Life Test -500 hours at 125°C and 125% of
Types 626G - 627C (Extended foil)
Types 628G - 629G (Inserted tab)
Temperature Range -Full rating
125°C with 50% derating.
Life Test -500
rated voltage.
at 85°C -to
hours at 85°C and 125% of
rated voltage.
Capacity Tolerance -All tolerances to ± 1 %.
Insulation Resistance -40,000 meg. x mfd. at
25"C but need not exceed 70,000 megohms.
Capacity Tolerance -All tolerances to ± 1 %.
Insulation Resistance -50,000 meg. x mfd. at
25'C but need not exceed 100,000 megohms.
Case Styles -Available in all case style variations
Case Styles -Available in all case style variations
in MIL -C -25A.
in MIL -C -25A.
50 -VOLT DIMENSIONS
Capacitance
L
D
D
.001
.173 x
"5
.0022
.0047
173 x
21i1
.173
.233 x
.312 x
.312 x
.400 x
.022
.047
.1
.22
.47
1.0
0
L
.173 x 1%
.173 x I%
.173 x 1,34,
.233 x '3ii
.312 x '34,
.312 x 'S,
.400 x 1'..
.500 x 1',
.560 x I'',
7
'',,
'',,
'%y
I
.500 x 11i
.560 x 1",
grounded to the case. Others
have both leads insulated.
L
D
/a
.173
V.
V.
.173 x
.173 x
.173 x
.193 x
.233 x
.312 x
'A
i'i
'15i
"6,
x
.400
x '/..400 x
.500 x
.500 x
1
..... C O.*
6176f
'it
.173 x
.173 x
.193 x
.193 x
.233 x
.312 x
.400 x
.500 x
.173 x %
°,,
.193 x
.193 x
°-,
°,,
"ii
"11
'',i
%,
'
.312 X
"ii
.400 x
.500 x
'hi
''Si
X
.233
'-i
1
.562 x l'i
1"4i
i
D
L
D
.173 x
.16
.560 x 1%
.560 a Psi,
vs Temperature
Capacitance
*These types have one lead
6160*f
629C
L
.173 x
.173 x
.173 x
.173 x
.193 x
.233 x
.312 x
.173 x 1'3f,
''ll
x
173 x
.01
628C*
627C
626C*
Mids.
in
L
%
'4
'4
'Kb
%
3 II
11i,
.562 x 11:
Insulation Resistance vs. Temperature
Cantiro.
2
fAlso available in 150V, 400V
600V ranges.
3
0
25
50
7
ICC
12
50
75
100
Write for literature on these new types.
GOOD -ALL CAPACITORS NOW AVAILABLE
AT YOUR LOCAL DISTRIBUTOR
4
N
A
C
AOTUR
CERAMIC
" OF TUBULAR, SUBMINIATURE ELECTROLYTIC ASO
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 7 READERS SERVICE CARD
11
used for USAF shots, were designed
to track the vehicle-a Doppler sys-
tem at Cape Canaveral, a station
utilizing a 10 -ft tracking antenna
in Puerto Rico, and a
specially -
built radio telescope station using
an 85 -ft parabolic antenna located
at Goldstone Dry Lake, 30 miles
north of Barstow, Calif.
Stations at Manchester, Eng-
land, Singapore, and Hawaii, all
used for USAF's shots, provided
back-up of official information, but
were not official tracking stations
for the project.
In
advance planning,
it was
agreed not to telemeter command
signals to the vehicle after launch,
as was the case with Pioneer, nor
'`'utilize any earth -triggered interrogation systems.
British Exports
Setting Record
BRITISH
radio -electronic
exports
reached a new monthly high of
almost $12 million in October,
bringing to $102.7 million the export total for the first 10 months of
1958. In releasing the figures, the
Radio Industry Council
said it expects a record export total
for the year.
British
Capital goods, including transmitters, other communications gear,
navigational aids and industrial
electronic items, accounted for
$35.7 million in the 10 -month period.
Tube exports of $11.8 million in
the same period topped the total
for all of 1957 by $840,000. Radio
and tv sets, sound reproducing
equipment and components made
up the remainder.
New Conference
Idea Succeeds
DALLAS-Electronics industry engineers may find themselves attend-
ing something new in technical
sessions next year.
It's this: Virtually all -question and -answer technical sessions, with
papers being made available before
conventions and, at sessions, given
only in synopsis form.
WASHINGTON OUTLOOK
WASHINGTON is trying to tidy up the U. S. space exploration program
which in recent months has deteriorated into a bureaucratic hodgepodge threatening to hold up high -priority projects.
Battle lines shape up like this: On one hand, the Army and Air
Force are arrayed against the Defense Department's Advanced Research
Projects Agency, which is supposed to direct and coordinate military
space projects. On the other, the military services are lined up against
the National Aeronautics and Space Administration.
The administration is moving slowly to resolve the disputes by
compromise. To some observers, though, the compromises are likely
to aggravate the administrative confusion.
Take the Army's rocket and space research centers which NASA has
tried to take over. Under a new agreement. the Army's Jet Propulsion
Laboratory at Pasadena, Calif., which designed the Explorer satellites
and the Pioneer III lunar vehicle, has been transferred to NASA.
The laboratories of the Army Ballistic Missile Agency at Huntsville,
Ala., however, where Wernher von Braun and his famed team of scientists hold forth, will remain an Army installation but will be "immediately, directly, and continuously responsive to NASA requirements."
Sticky situation arises from the decision to allow the Army to determine when ABMA facilities are available for NASA projects. But
NASA seems to hold the whip hand. The Pentagon has sorely restricted the Army's missile and space function. So ABMA will be more
dependent on NASA for assignment of projects and allocation of funds.
Meanwhile, the Pentagon has been shaken by ARPA's attempt to take
over supervisory or budget control of a group of projects managed or
started by the Air Force: The X-15 rocket airplane, Dyna-Soar orbital
bomber, Sentry reconnaissance satellite, Midas early -warning satellite.
The agency, whose exact future is still up in the air, is already in charge
of advanced research for the Air Force's BMEWS and the Army's Nike Zeus.
Recently, ARPA announced a new space program, "Project Discoverer," to be managed by the Air Force and to run indefinitely at a
cost of several hundred millions. Purpose is to experiment with reentry
and recapture techniques and to test military space hardware, such as
guidance systems, satellite stabilization gear, infrared warning satellites
and other vehicles. Lockheed is system contractor.
Getting a workable data-processing system is considered a weak
link in the government's five-year master plan to bring order
into air traffic control. Most of the Federal Aviation Agency's
$40 -million R&D budget will go for electronics. By 1963, the
agency will have a new air traffic control system in the New
York area. System will be then installed across the country.
One of the development -from -scratch items that FAA needs
is a method of displaying both radar information and synthetically -generated information on a single tube. Other items under
development for the control system include a 3-D radar; a collision avoidance system being developed by Bendix; and a master
communication system being developed by RCA for delivery
by May 1959.
The idea was tried here recently
12
December 19, 1958 - ELECTRONICS engineering issue
ONLY KIN TEL DIGITAL VOLTMETERS
GIVE YOU ALL THESE ADVANTAGES
1. SINGLE -PLANE READOUT: KIN TEL digital voltmeters employ a simple projection
system to present numbers on a readable single plane... no superimposed outlines of "off"
digits ...reduced possibility of error. Standard pilot Iafnps give extra long life.
2. ADVANCED CIRCUIT DESIGN: Transistors employed where they contribute to per-
formance and reliability ... relay drive coils energized with DC as in telephone type
service to provide long, trouble -free operation ... automatic, continuous standard cell
calibration. No electronic circuitry in readout allows easy remote mounting. Sensitivity
control permits stable reading of noisy signals.
3. MANUFACTURING EXPERIENCE: KIN TEL has manufactured over 10,000 "standard
cell accuracy" DC instruments on a true production line basis. Only by this method, by
years of repeated manufacturing experience, by an over-all awareness of the accuracies
and tolerances involved, is it possible to guarantee consistent accuracy and reliability...
to assure real value for every dollar you invest.
4. NATIONWIDE APPLICATION ENGINEERING FACILITIES: KIN TEL has engineering
representatives in every major city. An experienced staff of over 200 field engineers is
always immediately available to help solve your application problems, provide technical
data, or prepare a detailed proposal. Factory level service is available in all areas.
6. DESIDERATE SPECIFICATIONS (MODEL 401 DC DIGITAL VOLTMETER): Display ... 4 digit with
automatic polarity indication and decimal placement. Total display area 2" high x 7%"
long, internally illuminated. Each digit 11/8" high. Automatic Ranges.. .0001 to 999.9
volts covered in 4 automatic ranges. Sensitivity control provides least digit sensitivities
of .1, 1, and 10 my. Accuracy ... 0.01% -171 digit. Counting Rate...20 counts per sec.,
providing average balance (reading) time of 1 sec. Reference Voltage...Chopper-stabilized
supply, referenced to an unsaturated mercury -cadmium standard cell. Input Impedance
...10 megohms, on all ranges. Output...Visual display, plus print control. Automatic print
impulse when the meter assumes balance. No accessories required to drive parallel input
printers. Input ...115 volt, 60 cycle, single phase, approx. 75VA. Dimensions... Control
unit, 514" high x 19" wide x 18" deep. Readout display, 3%" high x 19 "wide x 9" deep.
Weight...Approx. 40 lb. Price -42,100.
Model 402 AC/DC 4 -digit
Model 401 DC 4 -digit
Model 501 DC 5 -digit
6. WIDE RANGE OF MODELS-ACCESSORIES-SPECIAL SYSTEMS: Versatile "digital
building blocks" permit measurement of AC, ohms, ratios of AC and DC, automatic scanning of multiple inputs ... 4- or 5 -digit models. Preamplifiers increase digital voltmeter
sensitivity to 1 microvolt DC, 10 microvolts AC. Buffers permit
driving typewriters, tape punches and printers. KIN TEL'S Special
Products Department can design and manufacture digital inv. u01NolS101,4 OF.
ments to meet special requirements ... complete digital systems for
data logging, missile checkout and automatic production line testing.
111.-211[G-rincoviC13.
KIN TEL
COHU
Write today for descriptive literature or demonstration. 5725 Kearny Villa Road, San Diego 11, California
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 8 READERS SERVICE CARD
13
at the Electronic Industries Association's third conference on Reliable
Electrical Connections-and it was
a smash hit.
The conference was attended by
370 delegates and 35 papers were
discussed, with the program keyed
mainly to audience participation.
Delegates'
comments were extremely favorable. Most seemed to
think they were able to explore
subjects more thoroughly.
Representatives of other technical groups were present to see how
the plan worked.
The six conference sessions covered Specifications for Electrical
Connectors, Specifications for Elec-
trical Connections, Effect of Environment on Electrical Connections,
Design
and
Evaluation.
Manufacturing and Process, and
Quality Control.
MILITARY ELECTRONICS
Mission and traffic control system for North American's USAF
F-108 long-range, Mach 3 interceptor is being developed by Federal Division of International Tele-
phone & Telegraph. System will
carry out communications, identification and landing -aid functions.
Air conditioning and pressuriza-
tion systems for both the F-108
and B-70 will be developed and
manufactured by Hamilton Standard div., United Aircraft Corp.
Temperatures up to 600 F, generated by the planes' high speeds,
make cooling of the crew and electronic equipment of critical importance. Firm says about half the
multimillion dollar project will be
electronic
system
which
makes
miniature target drones look like
bombers on radarscopes, has been
used in a series of successful flight
tests at Cape Canaveral and in the
New York area. Weighing less
than 20 lbs, SEE consists of a traveling wave tube, miniaturized
power package and antenna.
Forty percent of Navy's R&D
budget goes for systems leading to
ultimate hardware, such as Polaris,
Rear Adm. John T. Hayward, Assistant Chief, Naval Operations for
R&D, told American Ordnance
Assoc. in New York. Sixty percent
goes for basic, applied and supporting research.
Navy now has 1,500 basic re-
subcontracted.
Sperry Echo Enhancer (SEE),
search contracts with nonprofit institutions.
Space Electronics
Group Formed
NEW ELECTRONICS COMMITTEE of
the National Aeronautics and Space
Administration is due to start work
early in 1959 as one of 13 new
Research Advisory Committees.
NASA Administrator T. Keith
Glennan said the committees, including one on control, guidance
and navigation, would provide technical counsel, review research going
on and pick problems for investigation by NASA or other agencies.
Glennan also said the committees will act as media for the interchange
of information about
technical investigations and developments between researchers in industry, universities and government.
Tv Construction
Booms Overseas
REPORT from U. S. Information
Service is that tv station construction abroad boomed during third
quarter of 1958.
During that period a total of 79
new tv stations went on the air.
In the preceding quarter 57 started.
USIA estimates that present
world overseas total of 639 stations
may reach 706 by end of this year.
14
Busy New York trucking terminal platform (left) is scanned by 10 tv cameras
which allow operators to govern cargo movements as
. . .
C -C Tv Speeds Freight
TEN -CAMERA closed-circuit tv sys-
tem was placed in operation last
week to help regulate traffic in a
major New York trucking terminal.
The cameras provide visual coverage of a 43 -bay loading dock
which services as many as 800
trucks a day. Coaxial cables transmit the camera pickup to a central
dispatch office containing 10 monitors.
Nine of the cameras are stationary. The tenth can be rotated, and
is equipped with a revolving lens
turret which can provide
views
into the interiors of trailer trucks
being loaded. A two-way intercom
system provides audio communica-
tion between the dispatch office and
various loading docks.
The Yale Transport Corp., which
purchased the installation from
Dage Tv division of Thompson
Ramo Wooldridge for $25,000,
says system will allow the firm to
save considerable time and money.
The New York trucking company also uses a large scale IBM
system which, among other functions, originates punch cards serving as bills of lading, billing documents and customer receipts.
As a truck is loaded at the New
York dock, a talker equipped with
headphones and speaker describes
the packages being carried aboard,
December 19, 1958 - ELECTRONICS engineering issue
HUGHES THERMAL RELAYS
FOR RELIABILITY
IN GUIDED MISSILES
Hughes now makes commercially available a completely reliable single
action switch. Used in the Falcon, field proven as a reliable missile, this
Hughes relay is engineered to meet the most exacting of requirements.
With unusual speed of action, firing signal triggers the release of constrained
contact... contact closes upon fixed contact point... switch circuit becomes
permanently closed.
In a typical application, 3.0 volts DC applied to a firing circuit of 1.2
ohms fires within 0.3 seconds.
For additional information please write: Hughes Products, Marketing
Department, International Airport Station, Los Angeles 45, California.
SPECIFICATIONS
MECHANICAL-Body Size: Maximum diameter 0.252"; length .920^.
Total weight: Less than 0.1 oz.
ELECTRICAL-Before Firing: Insulation resistance is greater than
200 megohms. Minimum breakdown voltage 600 volts.
Firing: 2 volts minimum required. Actual voltage dependent upon closing time desired.
After Firing: Circuit resistance less than 0.3 ohm.
ALTITUDE-Any.
OPERATING TEMPERATURE: -55°C to +125°C.
Creating a new world with ELECTRONICS
HUGHES PRODUCTS
© 1958, Hughes. Aircraft Company
SEMICONDUCTOR DEVICES STORAGE AND MICROWAVE TUBES CRYSTAL FILTERS
OSCILLOSCOPES
ELECTRONICS engineering issue - December 19, 1958
RELAYS SWITCHES INDUSTRIAL CONTROL SYSTEMS
CIRCLE 9 READERS SERVICE CARD
15
giving destination, customer, contents and other information to
punch -card operators in the offices.
By the time the truck is loaded,
a complete record of its cargo has
been made.
Wherl, the card is completed, it
fed to another IBM machine
connected by teleprinter wires to
identical punch card equipment in
is
the other cities served by the trucking firm. At these locations, infor-
mation pertinent to the area is
extracted and a duplicate set of
punch cards is made automatically.
This allows the out-of-town terminals to anticipate what cargo will
be arriving from New York.
FINANCIAL ROUNDUP
I lycon Mfg. Co., Pasadena,
Calif., sells controlling interest in
Hycon Eastern, Cambridge, Mass.,
to Western Union and members of
Hycon Eastern management. Some
340,000 of 631,000 shares of outstanding common were sold. Nine
hundred thousand dollars of Hycon
Eastern debt, held by Hycon Mfg.,
was exchanged for same amount of
thread inserts and tools for application of the inserts. Topp plans
to use proceeds to finance expan-
convertible preferred. Also, $135,000 of advances from former parent
were funded into a 10 -month note.
Cardinal Instrumentation of
L. A. plans to issue 240,000 shares
of common stock at - $1.25 per
share. This Regulation A issue has
Tenney Engineering, environmental equipment manufacturer of
its common
stock on the American Stock Ex-
Union, N.
Sees Transistors
Opening New Era
"A NEW ERA in communications"
is coming through the use of tran-
sistors, the national conference of
IRE's Professional Group on Vehicular Communications was told
J., lists
change. Stock had previously been
traded over-the-counter. Behind decision to list on a national exchange
are plans for acquisition of electronic and environmental equipment manufacturing firms through
exchange of securities.
Topp Industries, Los Angeles,
Calif., sells wholly -owned subsidi-
recently.
sion of industrial controls division
and anticipated production increases of United States Semi -conductor Corp. of Phoenix, Ariz.
Negotiations for purchase of semi-
conductor firm by Topp are underway.
been filed by notification and is
exempt from SEC registration.
Firm makes temperature sensing
systems,
thermocouple
junctions
and transistor testers. Myron A.
Lomasney & Co. will handle the
underwriting on an all or none
basis.
Bumdy Corp.
of
Norwalk,
Conn., manufacturer of electronic
hardware and components, adopts
employee stock purchase plan. Em-
ary Heli-Coil Corp. of Danbury,
Conn., to a group of investment
bankers headed by W. C. Langley
& Co., for $3.5 million. H -C had
ployees were given right to purchase Burndy stock at as low as
95 percent of the market price at
date of offer. Plan was set up as
were discussions of factors affecting
been purchased in Nov., 1956, for
$2.3 million. Topp makes electronic test instruments, components and sub assemblies. Heli-
extra shake in business. The program also serves to provide addi-
the implementation of FCC's new
Coil
The talk, by W. J. Weisz of
Motorola, was one of 16 papers
dealing with aspects of
mobile
communications. The conference
also heard papers on antennas and
hand-held microphones.
Also included in the meeting
coiled
makes
wire
screw
means of improving company performance
by
giving
employees
tional capital.
split -channel regulations.
MEETINGS AHEAD
Jan. 12-14: Reliability and Quality Con-
trol, Nat. Symp., PGRQC of IRE,
ASQC, EIA, Bellevue -Stratford Hotel, Philadelphia.
Jan. 13-14: Cathode Ray Tube Recording, Systems Development Corp.,
Engineers Club, Dayton, 0.
Jan. 14: Computers and Medical Diagnosis, Rockefeller Institute, New
York City.
Jan. 21-23: Southwest Electronic Exhibit, Arizona
Phoenix, Ariz.
State
Fairgrounds,
Jan. 29-30: Long -Distance Transmission
by Waveguides, Institution of Electrical Engineers, London, England.
Feb. 1-6: American Institute of Elec16
Engineers, Winter General
Meeting, Statler Hotel, New York
trical
City.
Feb. 12-13: Transistor & Solid -State
Circuit Conf., AIEE, PGCT of IRE,
Univ. of Penn., Philadelphia.
Feb. 12-13: Electronics
Conference,
AIEE, IRE, ISA, CPS, Eng. Soc.
Bldg., Cleveland.
Feb. 17-20: Western Audio Convention, Audio
Eng. Soc., Biltmore
Hotel, Los Angeles.
merce, Great Western Exhibit Center, Los Angeles.
Mar. 15-18: National Assoc. of Broadcasters, Annual Convention, Conrad Hilton Hotel, Chicago.
Mar. 23-26: Institute of Radio Engineers,
Conf., AIEE, ACM, IRE, Fairmont
Hotel, San Francisco.
Convention,
Mar. 31 -Apr. 2: Millimeter Waves,
Symposium, Polytechnic Inst. of
Brooklyn, USAF, ONR, IRE, USA
Signal
Mar. 3-5: Western Joint Computer
IRE National
Coliseum & Waldorf-Astoria Hotel,
New York City.
Research,
Engineering
So-
cieties Bldg., N. Y. C.
Apr. 5-10: Nuclear Congress, sponsored
by over 25 major engineering and
Mar. 5-7: Western Space Age Conf.
and Exhibit, L. A. Chamber of Corn-
scientific societies,
Public
Audito-
rium, Cleveland.
December 19, 1958 -- ELECTRONICS engineering issue
NEW
AND IMPROVED
WOUND RESISTORS
MINIATURE WIRE
MADE TO MEET MIL -R -26C CHAR. "V"
PERFORMANCE REQUIREMENTS
ILLUSTRATED IN
ACTUAL SIZE
SPRAGUE
WATTAGE
DIMENSIONS
MAXIMUM
TYPE NO.
RATING
L (inches) D
RESISTANCE
240E
2
2,700'!
5,000
241E
Now a new improved construction gives even greater reliability and higher wattage ratings to Sprague's famous
Blue Jacket miniature axial lead resistors.
Look at the small sizes shown in the illustrations above
and you will recognize how ideal they are for use in miniature electronic equipment with either conventional wiring
or printed wiring boards.
For the full technical story on these dependable miniaturized
resistors, write for Engineering Bulletin 7410.
SPRAGUE ELECTRIC COMPANY
35 MARSHALL STREET NORTH ADAMS, MASS.
SPRAGUE COMPONENTS:
INTERFERENCE FILTERS
ELECTRONICS engineering issue
RESISTORS
242E
3
243E
5
244E
245E
,
30,000
7
1'4)
h1
December 19, 1958
30,000 !!
50,000
11
SPRAGUE®
THE MARK OF RELIABILITY
CAPACITORS
PULSE NETWORKS
10,000'!
MAGNETIC COMPONENTS
HIGH TEMPERATURE MAGNET WIRE
TRANSISTORS
PRINTED CIRCUITS
CIRCLE 10 READERS SERVICE CARD
17
Oscillogram showing ac output of
special Sola Constant Voltage Trans-
former (input to rectifier). The nearly -square wave shape allows high-
ly -conservative rectifier loading
and contributes to minimum ripple.
EFFICIENT, regulated DC power supply
11;f411-14
Can you use a ±1% regulated dc power
supply that has no filter choke drops . . .
1.06 to 1. It not only minimizes ripple, but
limits peak voltage to rectifier.
that has an unusually low ratio of size and
weight to power output? If so, consider a
Sola Regulated DC Power Supply.
The current -limiting action of the Sola
transformer permits the use of enormous
capacitance for filtering, by controlling
capacitor charging, thereby protecting it,
and the rectifier junctions.
This unique power supply combines: 1)
a Sola Constant Voltage Transformer, 2) a
semi -conductor rectifier, and 3) a high capacitance filter without choke.
The special Sola transformer output
(illustrated above) is virtually a square
wave, peak to rms. ratio, approximately
This dc source will give you exceptional
Fixed output - six
rat-
ings available from stock
Adjustable output six ratings from stock
performance on intermittent, pulse, and
variable loads. The Sola regulated dc supply is very reliable, simple, and compact.
It's moderately priced.
Custom -designed units
produced to your specs
Write for Bulletin 7L -DC -235
Sola Electric Co., 4633 W. 16th St., Chicago 50, III_ Bishop 2-1414 Offices in principal cities In Canada. Sola Electric (Canada) Ltd
24 Canmotor Ave_ Toronto 18, Ont.
-
CONSTANT VOLTAGE TRANSFORMERS
REGULATED DC POWER SUPPLIES
MERCURY LAMP TRANSFORMERS
FLUORESCENT LAMP BALLASTS
A DIVISION OF BASIC PRODUCTS CORPORATION
18
CIRCLE 11 READERS SERVICE CARD
December 19, 1958 - ELECTRONICS engineering issue
If you have this problem, investigate
I
an example of Phelps Dodge's
realistic approach
to Magnet Wire research
THE PROBLEM: To develop a solderable film -coated wire without fabric for winding
universal lattice -wound coils without adhesive application.
THE SOLUTION: Phelps Dodge Grip-eze-a solderable film wire with controlled
surface friction for lattice -wound coils that provides mechanical
gripping between turns and keeps wire in place.
EXAMPLE: Coils wound with (a) conventional film wire; (b) Grip-eze. Note clean
pattern of Grip-eze as compared to fall -down of conventional film wire.
Any time magnet wire is your problem, consult Phelps Dodge
for the quickest, easiest answer!
FIRST FOR
LASTING QUALITY
- FROM MINE
TO MARKET !
PEPS NM COPPER PlIONICTI
INCA MANUFACTURING DIVISION
FORT WAYNE, INDIANA
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 12 READERS SERVICE CARD
19
your
two
best
friends ...
"the man ahead"
and
"the man behind"
That man just ahead of you hopes you'll take his job away
from him. He's plain selfish about it .
that way you push
.
.
him up the ladder, too.
The fellow right behind you, what about him? He's another
good friend. Just help make him more capable of capturing your
present spot
see, now he's pushing you!
How can you serve yourself better than you ever have before?
By upgrading your own job performance. By learning all you
can about other functions .of your company's business. By putting today's problems together with tomorrow's promises
.
and becoming more and more knowing about both, right here
in the high -utility pages of this one specialized publication.
.
.
.
.
.
This, don't ever forget, is your own magazine - for you and
men like yourself to work things out together - to find new and
better ways to make progress and profits. McGraw-Hill editors,
who live on your street, unceasingly strive to make it the single
greatest community of interest for your industry. And the more
effort they put into it, the easier it is for you to get more out of
it for every reading minute invested.
Look ahead, read ahead, get ahead. Live this secret. Share
it. After you've read this issue so satisfyingly, hand it over to
that man one step below. Show him how much there's in it for
him, too. A few issues from now, we'll bet he looks you in the
eye and says, "Thanks, friend. I just got my own subscription."
McGRAW-HILL SPECIALIZED PUBLICATIONS
The most interesting reading for the man
most interested in moving ahead
20
December 19, 1958-ELECTRONICS engineering issue
NEW 14
for Flyback Transformers offers
Higher Flux Density
Lower Core Losses
Higher Curie Point
Now, with Allen -Bradley's new Class W-04
ferrite, you can design smaller flyback transformers with smaller cor?,s. This saves space ...
saves weight... saves copper... and you have
a saving in over-all cost
Specify Allen -Bradley's new W-04 ferrite for
your flyback transformers. The table below
compares its superior properties with Allen Bradley's "premium quality" W-03 ferrite.
Write for complete data, today!
J
Core Luss l'h in µWatts
Class
W-04
W-03
Temp.
Bz.n.*
eC
in Gauss
at 10 Oe
crips
B=1350 Gauss
16 Kcps
60 Kcps
B=1800 Gauss
16 Kcps 60 Kcps
Pmaz*
Po
at
Bc"
Room
Temp.
25 4900 ± 10% 3.8 ± 20% 5.3 ± 20% 6.4 ± 20%
9.0 ± 20% 7000 ± 30%
115 3700 ± 10% 3.8 ± 20% 5.3 -.r 20% 6.4 ± 20%
9.0 ± 20% 7000 ± 30%
Nat
Hu
t
Curie
Temp
°C
2000 2700 ± 15% 6000 ± 25%
225
2000 2100 ± 15% 5600 ± 25%
180
25 4200 1 10% 4.1 ± 20% 5.5 ± 20% 6.9 ± 20% 9.1 ± 20% 6000 ± 30%
115 I 2800 ± 10% 4.2 ± 20% 6.5 ± 20% 6.9 ± 20% 10.0 ± 20% 6000 ± 30%
*B, and µmax, Freauerscy-16 Kcps.
**Usable fax density-11Jc density at which the 115°C permeability is equal to 34 of the 25°C permeability.
jPerriasliility of the core et 25°C at Bu.
Allen-Bradley has also developed new square -loop power ferrites (R-03),
and ferrites for transistorized medium frequency inverters (W-07).
Our engineers will be glad to assist you with your ferrite problems.
BRADI
ELECTRONIC COMPONENTS
A -B ferrates
are furnished in a variety of shapes
Allen-Bradley Co., 110 W. Greenfield Ave., Milwaukee 4, Wis.
and seizes.
In Canada: Allen-Bradley Canada Ltd., Galt, Ont.
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 14 READERS SERVICE CARD
21
ward against needless trouble and shutdowns
... by specifying dependable BUSS fuses!
Should a fuse fail to protect your
equipment if electrical trouble oc-
curs ... unnecessary damage results.
Or, if a fuse blows needlessly your
equipment is shutdown without
good cause.
rectly
calibrated, properly con-
structed and right in all physical
dimensions.
engineers will help you select a fuse
readily available in local whole-
salers' stocks so users can easily
To meet your needs, - the
BUSS line of fuses is most com-
trouble and reflecting on the service
and reliability of your equipment?
plete . . . plus a companion line of
fuse clips, blocks and holders.
obtain fuses for replacement.
For more information on the complete line of BUSS and FUSETRON
Small Dimension Fuses and Fuse holders, write for bulletin SFB.
You can be sure of dependable
electrical protection by specifying
To help you on special problems
in electrical protection . .
McGraw -Edison
Why risk faulty fuses causing
BUSS fuses.
Every BUSS fuse is tested in a
sensitive electronic device that auto-
matically rejects any fuse not cor-
One source for all your fuse needs.
. . . BUSS places at your service
the facilities of the world's largest
Bussmann Mfg. Division
University
1259
fuse research laboratory and its
staff of engineers. If possible, our
BUSS fuses are made to protect - not to blow, needlessly
BUSS MAKES A COMPLETE LINE OF FUSES
MAT
"11.:::17,C.0
BUSS
22
Co.,
at Jefferson, St. Louis 7, Mo.
CIRCLE 15 READERS SERVICE CARD
't
FOR HOME, FARM, COMMERCIAL, ELECTRONIC,
AUTOMOTIVE
INDUSTRIAL USE
AND
CONSTANT DELAY BAND PASS
MAXIMUM TELEMETERED RESPONSE THROUGH
Channel
Frequency
.4
1
.56 KC
.73 KC
.96 KC
2
FLAT AMPLITUDE AND CONSTANT DELAY
3
4
1.3 KC
5
6
now offers a complete line of low pass
and band pass constant delay filters
for standard RDB telemetering channels. These Burnell constant delay filters combine accurate amplitude and
phase to effectively limit intelligence
distortion and false transients to a
minimum. Telemetered signals from
off course missiles or those in distant
or terminal flight are no longer blocked
by attenuation and noise.
Combination Achieved
Existing sub carrier discriminators
afford no better than a choice of flat
amplitude pass band with non-linear
phase in one filter or a constant time
delay filter with distorted amplitude.
In contrast, Burnell constant delay filters combine both -are flat within 3 db
over the pass band -11/2 db for the low
pass filters -and possess a time delay
constant within 5%.
Write for Bulletin CD 051
metering systems, it is recognized that
filtering of sampled data requires both
linear phase and flat amplitude in the
pass band. However, until recently a
combination of the two in one unit had
not been available.
KC
5.4
KC
7.35 KC
11
10.5 KC
12
13
14
15
16
17
18
14.5
22.
30.
40.
52.5
70.
22.
30.
40.
52.5
70.
A
B
C
D
E
KC
KC
KC
KC
KC
KC
KC
KC
KC
KC
KC
Part #
Delay in ms.
.8/W
S-60051
S-60052
S-60053
S-60054
S-60055
S-60056
S-60057
S-60058
S-60059
S-60060
5-60061
S-60062
S-60063
S-60064
S-60065
34.00
24.30
18.60
14.20
10.50
8.00
5.93
4.40
3.38
2.44
15%
15%
15%
15%
15%
15%
15%
15%
15%
15%
15%
15%
15%
15%
15%
15%
15%
15%
30%
30%
30%
30%
30%
1.80
1.26
0.91
0.60
0.44
0.33
0.252
0.189
.305
.224
.168
.128
.096
5-60066
S-60067
S-60068
S-60069
S-60070
S-60071
5-60072
S-60073
CASE SIZE -2" x 31/2" x 4 ,3A 6"
INPUT IMPEDANCE = 500 ohms
OUTPUT IMPEDANCE = 500 ohms and to grid
0
d0
"
I
?
V
0
I5
ID
LD
idM1
% DEVIATION FROM CENTER
FOR ± 71/2% PASS BAND
Flat within 3 db over pass band
For maximum performance of tele-
8
9
10
TECHNICAL DATA
20
1
Amplitude and Phase Necessary
1.7
2.3 KC
3.0 KC
3.9 KC
7
In keeping with its reputation as a
pioneer in the field of toroids, filters
and related networks, Burnell & Co.
KC
FREQUENCY
2 21 db at ± 15% of center freq.
3 40 db at ± 22% of center freq.
4 Time delay over the pass band,
30
constant tot 5%
FOR ± 15% PASS BAND
Flat to 3 db over pass band
1
2 23 db at ± 30% of center freq.
3 40 db at ± 44% of center freq.
40
4 Time delay over pass band constant
to ± 7%
Input impedance - 500 ohms
Output impedance - 500 ohms and high
impedance for operation to a grid
optional impedance available on special order.
EASTERN DIVISION
PIONEERS IN TOROIDS, FILTERS AND RELATED NETWORKS
ELECTRONICS engineering issue - December 19, 1958
10 PELHAM PARKWAY
PELHAM, NEW YORK
PELHAM 8-5000
TWX PELHAM 3633
'01....
50
PAC FIC DIVISION
720 MISSION ST.
SOUTH PASADENA, CALIFORNIA
RYAN 1-2841
TWX PASCAL 7578
CIRCLE 16 READERS SERVICE CARD
23
At last! A PRECISION
DUAL
New 122A uses alternate sweep or
40 KC chopper for dual trace display
7,,
rugged cabinet
or 7" high
rack mount
Other high performance, direct reading,
AVIV.
111,
wo"
-hp- 150A/AR, DC to 10 MC. 24
sweep times, 0.02 sec/cm to 15 sec/cm.
Plug -ins for high gain or dual channel
use. Rack mount, $1,200; cabinet model, $1,100.
24
F
w#
skirog...4
-hp- 130B/BR, DC to 300 KC. Simi-
-hp- 120A/AR, DC to 200 KC. 15
lar X, Y amplifiers, 21 sweep times,
1 ,usec/cm to 12.5 sec/cm. Balanced
sweep times, 1 ttsec/cm to 0.5 sec/cm.
input 5 most sensitive ranges. Includes
times -5 magnifier. $650.
CIRCLE 17 READERS SERVICE CARD
Times -5 magnifier, automatic trigger.
Simple to use, rugged, outstanding
value. $435.
December 19, 1958 - ELECTRONICS engineering issue
200 KC SCOPE WITH
TRACE PRESENTATION!
Big -scope ver_,Jrility at moderate cost!
Here at last is a 200 KC oscilloscope priced at just $625 - giving you "big -
Other significant features include univer-
scope" versatility and the time -saving convenience of simultaneous two -phenomena
presentation.
maximum sensitivity of 10 mv/cm, 15 calibrated sweeps with vernier, sweep accuracy of -±5% and a "times -5" expansion
Engineered to speed industrial, mechani-
giving maximum speed of 1 µsec/cm on
the 5 µsec/cm range. Trace normally runs
122A has two identical vertical amplifiers
and a vertical function selector.
The amplifiers may be operated independently, differentially on all ranges, alter-
tical deflection, but a knob adjustment
cal, medical and geophysical measurements in the 200 KC range, the new -hp-
nately on successive sweeps, or chopped at
a 40 KC rate.
sal optimum automatic triggering, high
free, syncing automatically on 0.5 cm ver-
eliminates free -run and sets trigger level
as desired between -10 and +10 volts.
Rack or cabinet mount; rack mount model
only 7" high.
For complete details, write or call your
-hp- representative, or write direct.
BRIEF SPECIFICATIONS
Sweep: 15 calibrated sweeps, 1-2-5 sequence, 5 ,u.sec/cm
mv/cm range. Input impedance 1 megohm with
to 0.2 sec/cm, accuracy ±5%. "Times -5" expander, all ranges. Vernier extends 0.2 sec/cm range
to 0.5 sec/cm.
Trigger selector: Internal + or -, external or line.
Triggers automatically on 0.5 cm internal or 2.5 v
peak external. Displays base line in absence of
less than 60 ktiuf shunt. Bandwidth DC to 200 KC or
2 cps to 200 KC when AC coupled. Internal amplitude calibrator provided.
Function Selector: A only, B only, B -A, Alternate and
signal. Trigger level selection -10 to + 10 v
available when automatic trigger defeated.
Chopped (at approx. 40 KC).
Horizontal Amplifier: 3 calibrated sensitivities, 0.1
v/cm, 1 v/cm, 10 v/cm. Accuracy ±5%. Vernier
10 to 1.
Vertical Amplifiers: Identical A and B amplifiers, 4
Bandwidth DC to 200 KC or 2 cps to 200 KC, AC
calibrated sensitivities of 10 mv/cm, 100 mv/cm,
1 v/cm and 10 v/cm; ±5% accuracy. Vernier 10
coupled.
General: 5AQP1 CRT, intensity modulation terminals at
rear, power input approximately 150 watts, all DC
power supplies regulated.
Price: (Cabinet or rack mount) $625.00.
to 1.
Balanced (differential) input available on all input
ranges. With dual trace, balanced input on 10
Data subject to change without notice. Prices f.o.b. factory.
automatic trigger
oscilloscopes
-hp- 115A Testmobile for 150A, other
scopes. Tilts scope to 30° in 7%° stages.
Heayy chrome tube construction, 4" rubber
tired wheels, rolls easily, folds compactly for
storage. $80.
-hp- 116A Storage Unit ($22.50) hangs on
115A, holds three 150A plug -ins or -hp117A Accessory Drawers, $10 each.
-hp- AC -21C Voltage Divider Probe.
50:1 divider with 10 megohm input
impedance and 2.5 tip.f capacitance.
For -hp- 150A but usable with most
scopes, VTVM's, preamps. $25.
ELECTRONICS engineering issue - December 19, 1958
HEWLETT-PACKARD COMPANY
5027A PAGE MILL ROAD PALO ALTO, CALIFORNIA, U.S.A.
CABLE "HEWPACK" DAVENPORT 5.4451
FIELD REPRESENTATIVES IN ALL PRINCIPAL AREAS
CIRCLE 18 READERS SERVICE CARD
25
V
To a man floating weightless around Space Station
C, these are perhaps meaningless words-but solid
footing is highly important to most of us who live
and work on the surface of the earth.
Autonetics has established a solid footing in inertial guidance through 12 years of successful development and production of airborne and ocean-going
systems, as well as systems for space applications.
The healthy growth of the Autonetics Guidance
Engineering department-based on a number of
highly diversified contracts-has created new senior -
level positions in the fields of electro-mechanical component development and system analysis.
Well qualified, experienced men will find solid foot-
ing in this permanent, progressive, and successful
organization-plus the chance to create and to grow
in one of today's most challenging fields.
But time's a -wasting. Now is the time to find out
what the future holds for you at Autonetics.
Please send your resume to Mr. L. M. Benning,
Manager, Employment Services, 9150 E. Imperial
Highway, Downey, California.
NERVE CENTER OF THE NEW INDUSTRIAL ERA Autonetics
A DIVISION OF NORTH AMERICAN AVIATION, INC.
26
December 19, 1958 - ELECTRONICS engineering issue
6
7
. SYSTEMS OR
COMPO
SYSTEM
BY HALLAMOR
Suxessful per
nce of systems contracts for all branches of the United States Arrrec Forces provides the
ba.:kground for the Hallamore "Building -Block" principle... making possible the click supply of reliable
systems and system components S3 urgently required in the accelerated missile and satellite programs. Choose
fr.m these typical Hallamore "Building -Blocks" for adaptation in your current project. 1. DC Amplifier
(drift less than ±2 Microvolts) 2. Phase -lock Discriminator (applying a concept ew to telemetry) 3. FM
S_bcarrier Oscillator (linear ...stable... internal bias) 4. Channel Calibrator (0.1% al:solute accuracy) 5. Bandvritched Discriminator (compact ...single control switching) 6. Summing Amplifier :18 ciannels plus internal
r-Aerence oscillator) 7. Closed circuit T.V. monitoring systems. 8. Complete Missile 72elemetry Systems.
1irite Dept. 20J, 8352 Brookhurst Avenue, Anaheim, California /TWX Code: AI1-907.9
HALLAMORE ELEC-R0
CO PANY
A-7 a divisi:m ol The Siegler Corporation
or idea
with a dynamic, creative organization
address resume to Chief Engineer.
tio.i
ELECTRONICS
engineering issue - December 19, 1958
144
CIRCLE 20 READERS SERVICE CARD
27
NEW PROOF OF SAME RUGGED
IN BOTH NON-MILITARY AND
New environmental lab provides rigid
in -plant testing of all Westinghouse
electronic transformers
Westinghouse Specialty Transformer Department has
established a new qualification testing laboratory in
the Greenville, Pennsylvania, plant. It is fully equipped
for in -plant environmental testing-humidity, altitude
and temperature cycling-as well as shock and vibration testing.
Specifically designed for testing the complete line
of Westinghouse MIL -T -27A electronic transformers,
these facilities are also available for all other Westinghouse electronic transformers-whether for MIL-specs
or non-military applications. Here is extra assurance
that you get the same rugged dependability in all Westinghouse electronic transformers-regardless of use.
28
CIRCLE 21 READERS SERVICE CARD
The test lab permits in -plant testing of all types of
electronic transformers-hermetically sealed to open
type-according to MIL -T -27A and MIL -T-9219 speci-
fications for Grades 1 through 6. These units include
the Westinghouse hermetically sealed MIL -T -27A
transformers, Grades 1 and 4, and the Westmold, West seal and molded case transformers, MIL -T -27A, Grades
2 through 6, or MIL -T-9219.
Located at the point of manufacture, this laboratory
now means single responsibility by Westinghouse for
design, manufacture and testing of the MIL -specs
transformers-and non-military transformers-with less
delays and faster delivery.
Call your Westinghouse representative for the full
story of how in -plant testing in this new laboratory
can aid your production. Ask, too, about the Westinghouse MIL -T -27A electronic transformers.
J-70897
YOU CAN BE SURE...IF ITAVestin house
WATCH
,T1NCHOUSE LUC.LLE ellDESI ARHAZ SHOWS-
December 19, 1958
CBS TV MONDAYS
- ELECTRONICS engineering issue
DEPENDABILITY
MIL -SPECS TRANSFORME
Westinghouse electronic transform- P. K. Goethe, Specialty Transformer
ers being shock -tested according to Engineering Manager at. the Greenville
specifications of MIL -T -27A with plant, observes shake -down run of
new in -plant qualification testing
equipment.
vibration test equipment in new
laboratory.
ELECTRONICS engineering issue - December 19, 1958
Particularly designed for power applications
involving 60-400 cycles, the Westinghouse
hermetically sealed MIL -T -27A transformers
are available in the complete line of standard
MIL -T -27A case sizes.
CIRCLE 22 READERS SERVICE CARD
29
The salary structure for these positions
but he does not design hardware. He is reflects the advanced nature of the assignour security. To deter these airborne more interested in the broader systems ments. Please inquire by writing directly
aggressors is the job of the all-weather aspects. Taking an analytical approach, to Dr. Allen Puckett, Associate Director,
he must solve the interacting problems of Hughes Systems Development Laborainterceptor, our first line of defense.
Partaking in a giant chess game, a Hughes performance, reliability, maintainability, tories.
HUGHES AIRCRAFT COMPANY
Airborne Systems Engineer is constantly and operability.
BEHIND THE CLOUDS hides a cunning enemy
is concerned with the design of hardware,
with ever -improving weapons to threaten
fed intelligence information regarding the
If this type of systems engineering
most recent enemy advances. He asks the interests you, investigate the assignments
question, "How effective are present in- now open in:
terceptors against the new enemy capa-
bilities, and how can we counter this
SYSTEMS ANALYSIS SYSTEMS EVALUATION
challenge?"
The Hughes Airborne Systems Engineer
SYSTEMS DESIGN SYSTEMS FLIGHT TEST
30
SYSTEMS DESIGN CO-ORDINATION
CULVER CITY 34, CALIF.
HUGHES
1958, HUGHES AIRCRAFT COMPANY
December 19, 1958 - ELECTRONICS engineering issue
DIELECTRIC ROD
FLUSH -MOUNTED
ANTENNAS
Sperry can help you suppress side lobes, improve resolution, scan at higher speed
If your project requires microwave
antenna design or production, Sperry
can help you.
Right now, in a completely equipped
specializing in the related fields of electronics. mechanical design, electromag-
netic physics and advanced system
techniques.
With sunny weather the year round,
new plant at Clearwater, Florida,
Sperry antenna engineers are busy
Clearwater weather permits running
designing and producing many new
radiation patterns nearly every day. We
advanced types of microwave antennas,
such as 70 kmc geodesic antennas and
dielectric rod arrays. Backing them up,
in addition to complete laboratory and
production facilities, is a new antenna
weather-all necessary factors for solving your problems. Write us for more
information on any phase of microwave
antenna development.
have engineers, facilities and the
range equipped with the latest automatic recording equipment which is
Sperry microwave antennas are currently
capable of handling large apertures and
used in a wide number of highly specialized
aircraft model pattern work. Supporting the antenna engineers are highly
military, naval and aviation applications from missile guidance to electronic countermeasures.
qualified engineers and physicists
SPERRY MICROWAVE ELECTRONICS COMPANY, CLEARWATER, FLORIDA
DIVISION OF SPERRY RAND CORPORATION
Address all inquiries to Clearwater, Florida, or Sperry Gyra,cope offices in New York Cleveland New Orleans Los Angeles San Francisco Seattle
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 24 READERS SERVICE CARD
31
ZIPPERTUBING
NEW PRODUCTS
SHIELDED ELECTRONIC
CABLES IN ONE STEP
Multi -conductor electronic cable or harnesses which require RF,
UHF, magnetic or radiation shielding can be quickly made up with
the revolutionary, new shielded ZIPPERTUBING. Lamination of
pure metal foil to the inner surface of ZIPPERTUBING jacketing
provides shielded cable at a fraction of the cost of conventional
tinned copper wire shielding plus outer jacketing. This new process
also permits 100% effective shielding of main cable and branchouts
without tedious hand wrapping, thereby saving up to 90% in
labor cost.
RF and UHF Shielded ZIPPERTUBING consists of a vinyl
saturated fiberglas jacket laminated to pure aluminum or copper
foil. RF shielded jacketing is flame resistant and has a temperature
range of -40°F. to 392°F.
Type ALAS Thermazip.
THERMAZIP Resists Missile Firing
Zippertubing THERMAZIP, known as type ALAS, will withstand
operating temperatures of 2000°F. This was proved in recent firings
of major ICBMs where THERMAZIP was used to protect electronic
cables exposed to the direct launching blast of the missile. This
revolutionary jacketing has survived two launchings and has completely protected the cables it enclosed.
THERMAZIP is made of aluminized reflective asbestos fiber
which quickly zips around the cable. A double external flap protects
the point of closure. Other materials available include aluminized
silicon rubber -coated glass cloth with great corrosion resistance for
protection from -100°F. to 500°F. Plain asbestos THERMAZIP
is also available.
AUTOMATIC CABLE MACHINE SUCCESSFUL
A typical multi -conductor cable with a shielded ZIPPERTUBING larltting.
The pencil shows the laminated metal foil.
Magnetic shielded ZIPPERTUBING consists of Conetic steel
laminated between layers of vinyl, Mylar" or fiberglas. Additional
laminations may be specified for increased protection. With each
additional layer, the amount of magnetic shielding is squared.
Radiation shielded jacketing is made of vinyl covered lead
Since its recent announcement, the new Zippertubing automatic
cablemaking machine has been successfully used by many manufacturers for making their own multi -conductor electronic cables.
The revolutionary machine automatically makes cables with up to
108 conductors and applies either shielded or regular jacketing in
a one-step operation. Labor costs, capital equipment expenditures
and production lead time are drastically reduced.
The inexpensive machine is available on lease, lease -purchase
or outright purchase plans from The Zippertubing Company.
saturated glass cloth. It may be used for constructing new cables or
as an outer protective jacketing over existing cables that may be
replaced when contaminated.
The ZIPPERTUBING shielded cables are particularly easy to
ground through a wide variety of methods. One of the most popular
consists of a Me" copper tinned braid which is machine sewn to
the inner flap of any shielded jacketing at the factory. This process
permits the user to effectively ground the cable at any desired point.
ZIPPERTUBING shielded jackets are available in 443" I.D. and
up, in Vs" increments and are provided in a wide selection of colors.
Complete technical information is available upon request.
FREE CABLE CALIPER
Zippertubing cable caliper has been specially developed for showing
the actual diameter of any multi -conductor electronic cable at a
glance. It also indicates the proper size of Zippertubing for a tightfitting cable jacket. The Zippertubing caliper is handy for measuring any cylindrical object up to 2" in diameter. It will be furnished
free on request.
32
Trademark of duPont.
Close-up of cable machine head shouing cable being formed and sealed.
For compieta catalog information or field engineering service, write to:
The Ziri:,c.rrubirig Cn., 752 So. San Pedro St., Los Angeles 14, Calif.
TVA
Shies offices and warehouses in all principal cities.
,
CIRCLE 25 READERS SERVICE C., 'it,
CIRCLE 26 READERS SERVICE CARD -5-
For better looking equipment,
use the best looking resistors
NEW IRC
6 BT
New attractive appearance -1 z watt and 1 watt
New smaller size -1 watt
Ask your IRC salesman about NEW GBT Carbon Composition Resistors
INTERNATIONAL RESISTANCE COMPANY 401 N. Broad Street, Philadelphia 8, Penna. In Canada: International Resistance Co., Ltd., Toronto, Licensee
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34
December 19, 1958-ELECTRONICS engineering issue
1958 Index to
McGRAW-HILL
PUBLISHING
CO.
330 West 42nd St. New York 36
A
electronics
January to December Issues Inclusive
Amplifiers, three -stage, 1-f transistor, for f -m
72 Aug 1
tuner
Amplifier, summing, for equalizing highlights
72 Jan 17
to sharpen tv pictures
Amplifier, two -stage d -c, for watch timer
84 Dec 19
Amplifier, video, used in contour plotter for
98 Dec 5
monitoring multiple -beam radiation
Amplifiers, voltage, transistor, used in Van66 Jan 17
guard data converter
Amplifier systems, maser, noise measurement
66 Apr 25
on
79 May 9
Amplifier, three -channel a -f selective
79 June 6
Amplifier, three -stage, in ergmeter
Amplifier, transistor a -c, with multiple feed84 May 23
back loop
Amplifier, transistor excitation supply, for
82 Aug 15
blood pressure monitor
Amplifier, transistorized crystal feedback, for
118 Feb 14
long term frequency stability
Amplifier, transistorized, for foetal heartbeat
Items for which the page reference is marked
"MAW", "CD" and 'TT" are editorial mate-
Abacus test recorder for keeping track of tube
PT133 Sept 12
faults
Abrasion machine strips winding insulation
PT134 Oct 10
subminiature,
CD140 Feb 14
withstands 7 G's at Ike
Acceleration, Air Force environmental test
59 Mar 28
procedure of electronic systems for
rial published in Electrons at Work, Component Design and Production Techniques
departments, respectively.
Absolute air pressure switch,
Accelerometer, rotating armature type...PT124 Apr 11
Accessory transducer adds versatility to pen
CD102 May 23
recorder
Accurate adjustment of synchro shafts CD100 June 20
PT115 May 9
Acid sharpens files
ACOUSTICS
Acoustic cavity detects breaks in film
50 Mar 28
Acoustic propagation lose in sea water for
56 Jan 3
sonar systems
Acoustical power whistle for testing airborne
structures and electro-mechanical assem59 Mar 28
blies
Acoustical vibration criteria, Air Force, for
59 Mar 28
designing aircraft and missiles
Acoustical noise encountered in using sonar
56 Jan 3
techniques
Acoustic transmission used for underseas
84 Oct 10
telemeter system
A -c peaks measured with comparison circuit
EAW101 Nov 7
EAW96 Jan 3
A -c threshold converts to switch
EAW98 Jan 17
A -c zero locator
PT127 Jan 17
Adhesive foam tape
Adjustable nonlinear function generator CD84 July 4
AIEE sets magnetic component standards.CD92 Feb 28
AIRBORNE EQUIPMENT
Airborne gyro indicator using fast -response
114 Feb 14
magnetic servo amplifier drive
Airborne h -f transceiver, voice modulation sys56 Mar 28
tem advantage profile for
Airborne machine guns, firing circuits for
86 Aug 1
triggering
Airborne radar displays recorded with light
80 Aug 1
modulation device
Airborne telemetry keyer ruggedized with
81 Sept 12
transistors
Airborne tv system for military reconnaissance
66 May 23
Aircraft alternator controlled by servo dis94 Oct 10
criminator
Aircraft communication equipment, Air Force
59 Mar 28
environmental test procedures for
Aircraft direction finder errors, calibrator for
plotting
Aircraft environmental
Force
EAW115 Oct 10
design criteria, Air
59 Mar 28
Aircraft passenger address system adjusts to
106 Feb 14
ambient noise
Aircraft, strain gages monitor wing stress
EAW104 Dec 5
Aircraft surface actuator systems, designing
69 Nov 7
safety into
Air cylinders ease women's workload...PTI06 Dec 19
EAW172 Mar 14
Airplane demonstrator sells gear
Air -suspension leaks in autos found using
82 Dec 5
infrared techniques
Air traffic control, application of three-dimen81 May 23
sional crt to
ALARM DEVICES
a
Alarm circuits for crevasse detection system.63 Jan 17
Alarm circuit, comparator, safety features of
69 Nov 7
in automatic pilot systems
Alarm system, civil defense, radiant energy
63 May 9
powered transistor receivers for
Alarm system, Conelrad, uses gated neon
74 May 23
warbler
Alarm to detect intruders uses transitorized
phase -sensitive detector
lb
102 Feb 14
Albedo, study of earth's using scientific earth
56 Feb 28
satellites
Alternator, aircraft, servo discriminator for
94 Oct 10
controlling
Altitude and explosion chambers for environ59 Mar 28
mental testing
Altitude and position data translation circuits
for three-dithensional crt used in air traffic
81 May 23
control
Altitude criteria, Air Force, for designing air59 Mar 28
craft and missiles
Altitude -shock criteria, Air Force, for design59 Mar 28
ing aircraft and missiles
Aluminum, gallium rub prepares for soldering
PT123 Aug 1
of
Aluminum loft layout used with photoelectric
78 May 23
function generator
Amplifier, 6.5 -cps, for nondispersion infra82 Dec 5
red analyzer
A -m comparison with f -m, dsbsc and sato for
56 Mar 28
voice communications
Amplifier used to test insulation resistanoe 47 Mar 28
Amplifier, antidistortion, for squelch circuit
66 May 9
for muting magnetic tape echoes
Amplifier, overdriven, audio for loaded -diode
93 Feb 14
counter
Amplifier, balarced direct -coupled differential.
70 June 20
for microwave thickness gage
Amplifier, listable transistor, for solid-state
62 June 20
photocell
Amplifier, buffer, for B-11 tester used to
76 Jan 17
measure memory core parameters
73 Apr 11
Amplifier, carrier, for artificial heart
Amplifier circuits. X-, Y- and Z-, for three81 May 23
dimensional crt
Amplifier, d -c, for amplitude distribution analyzer used to determine noise waveforms from
162 Mar 14
missile radar systems
Amplifier, d -o, for electronic high-speed
74 Sept 26
Printer
Amplifier, d -c transistor, cutoff -current drift
83 July 18
cut off by diode
Amplifier, d -c transistor, for high -impedance
64 Feb 28
inputs
Amplifier, d -c, with ex and ed input voltage
87 June 6
range
88 Aug 15
Amplifier delay charts
Amplifier, difference, for equalizing highlight
72 Jan 17
to sharpen tv picture
Amplifier, differential, for radar noise figure
49 Jan 31
monitoring system
Amplifier, differential, for two-way electronic
81 Jan 17
switch
Amplifier, direct drive transistorized, for two 146 Mar 14
speed servo systems
Amplifier, experimental mavar operating in the
65 Sept 26
electromagnetic mode
Amplifier, fast response servo magnetic, for
114 Feb 14
driving gyro indicator
Amplifier, feedback -type regulator control
73 July 18
transistor
Amplifier, transistor pulse, with nonlinear
86 Nov 7
feedback
Amplifier, transistor sense, for ferrite -plate
100 Oct 10
end -fired memory
Amplifier, trigger, used in decade decimal
88 Jan 17
counter
Amplifier tubes, transfer characteristics measurement of using backward wave tube sweep
76 Jan 3
oscillators
Amplifier, tuned high -gain, for artificial
73 Apr 11
heart
heart
corrests
two -transistor,
Amplifier,
80 Nov 21
block
Amplifier, two -stage i-f, for tropo-scatter re78 Apr 11
ceiver
Amplifier, uhf two -stage broadband, for radar
81 Sept 26
and scatter
Amplifier, universal transistor tape, for digital
91 Oct 10
data systems
Amplifier used with integrator for magnetic
il0 Feb 14
core measurements
Amplifier, video, for radar noise figure moni-
96 Feb 14
calls
Amplifier, grounded -grid, for uhf f -m exciter
49 Jan 31
toring system
Amplifier, voltage and current feedback, sim88 Ilov 7
plification of analysis of
Amplifier, X -band, solid-state maser used as 66 Apr 25
A -m cab, tropo-scatter system design charts.91 Jan 17
Analog circuit for producing smooth spot deflection to form characters on Crt screen 72 Jan 3
Analog circuits, used in foetal heart beat
62 Apr 25
recorder
Analog comparator for production testing 47 Mar 28
148 Mar 14
Amplifier, harmonic, for X -band local oscil80 June 20
lator
high -dynamic -range differential
EAW84 Jan 31
Amplifier, high -gain a -c, used in transistorized
40 Jan 31
strain gage oscillator
6 Apr 11
Amplifier, high -power transistor audio
Amplifier, L -band, solid-state maser used
66 Apr 25
as
Amplifier, 1.4 h f and r -f narrow band, design
165 Mar 14
curves for
Amplifier, klystron, uses capacitive tuning
CD56 Aug 29
Amplifier, magnetic, for d -c power supply
68 Feb 28
regulation
Amplifier, noise, for combining circuit in
78 Apr 11
quadruple -diversity f -m receiver system
Amplifiers, operational, for SAGE radar input
76 Aug 15
monitor
Amplifier, operational, for target simulator
32 Jan 31
used to test beam -rider missiles
Amplifier, phase -locking age, for Shf frequency
100 Apr 11
standard
Amplifier, power. for miniature rate servo
69 Jan 3
system
Amplifier,
52 July 4
Analog compressor -expander
Analog computer speeds missile design.EAW96 Dec 19
ANALOG COMPUTER
(See Computers)
Analog torment voicing system for electronic
36 Aug 29
organ
Analog magnetic memory for Lyman -alpha
56 Feb 28
scientific earth satellite
Analog system, optical, used in contour plotter
for monitoring multiple -beam radiation 98 Dec 5
Analog voltage source, semiconductors used
EAW96 Aug 15
in
ANALYZERS
Analyzer, amplitude distribution, determines
noise waveforms from missile radar sys182 Mar 14
tems
Analyzer, electronio period, for describing
68 July 18
brain -wave bursts
Amplifier, power, for transmitter in crevasse
63 Jan 17
detection system
Amplifier, quasicomplementary transistor sym96 Apr 11
metry, for high -power
Amplifier, r -c coupled, for sensitive detector
36 Jan 31
used to plot eye movements
Amplifier, regenerative narrow band, using
76 Jan 3
helix -type backward wave tube
Analyzer, infrared for missile study...EAW94 June 6
Analyzer, nondispersion infrared, for finding
82 Dec 5
leaks in auto suspension systems
Analyzer, nuclear magnetic resonance, for
measuring moisture content of hygroscopic51 Feb 28
Amplifier, r -f, for Vanguard rocket telemeter
46 July 4
transmission system
used in low noise Uhf con52 Jan 31
verter for IGY propagation studies
Amplifier, 8 -band, solid-state maser used as
66 Apr 25
Amplifier, servo, for nondispersion infrared
82 Dec 5
analyzer
36 Aug 29
Amplifiers, tam, for electronic organ
96 Nov 21
Amplifiers, d -c, for control systems
solids
88 May 9
Analyzer, reciprocating engine
Analyzer, spectrum, High -Q unbalanced crystal
155 Mar 14
filters for
Amplifier, r -f.
AN -connector wrench
Annealing in oven
jets
ANTENNAS
Amplifiers. digital, use saturable transformers
EAW74 July 4
Amplifiers, magnetic, aid d -o measureEAW98 Dec 19
ments
Amplifier, sensing, for setting information
register flip-flop in Vanguard data converter
86 Jan 17
Amplifier, series, supplies high -power output
without driver or output transformer....96 Apr 11
Amplifier, servo, for miniature rate servo
89 Jan 3
system
Amplifiers, feedback, phase -shift curves for 86 May 9
Amplifiers. gated -pulse, transistor, used in
68 Jan 17
Vanguard data coverter
Amplifiers, high-speed magnetic, for measure76 Jan 17
ment of hystersis properties
Amplifiers, magnetic, replaced by semiconduc52 Mar 28
tor switches
Amplifiers, push-pull, drive speaker directly 76 July 18
Amplifier, stabilized, for instrument used to
100 Dec 5
display transistor beta falloff
Amplifier, stereophonic, for home phonographs
ELECTRONICS engineering issue - December 19, 1958
52 Apr 25
detector
Amplifier, transistorized marker, for stairstep
41 Mar 28
integrator
Amplifier, transistorized power, for PA system
106 Feb 14
which adjust to aircraft noise
Amplifier for clock reading circuit in automatic digital system for billing telephone
77 Dec
VOLUME XXXI
5
PTI23 Nov 21
replaced
by
flame
PT106 July 18
Antenna array, slotted waveguide, for marine
94 Dec 5
radar
Antenna arrays for meteor -burst communica42 Aug 29
tions
Antenna assembly, altazimuth. for Jodrell
70 June 6
Bank radio telescope
Antenna, circular array, for Doppler direction
44 Jan 31
finder system
44 Mar 28
Antenna, loaded -lens, tracks missiles
Antenna, loop, for public address system using
54 Jan 3
wireless microphone
Antenna, loop, for receiver of endoradio-51 Jan 3
sonde
Antenna, microwave, determination of stand56 Jan 31
ing -wave ratio using conversion chart
86 Dec 19
Antenna, microwave, split reflector for
Antenna networks, tv, multicouple nomograph
86 May 23
for
Antenna, parabolic, follows the sun...}1AW98 June 6
78 Dec 19
Antenna pattern simulator
35
Breakdown characteristics for Zener diodes
Antenna, radar, for low -frequency, long-range
CD112 Nov
defense systems
7
EAW90 May
9
Antenna, radar horn, for helmets of civilian
defense workers
Antenna system, radio direction -finding, for
81 Oct 10
tracking satellites
Antenna systems, missile, ferrite radiators
shrink size requirements of
49 Apr 25
Anticoincidence plant detects weak radiaEAW95 June 20
tion
Anvil and die fasten contact barrel to
PT90 July 4
panel
PT96 Apr 25
Applicator for photo layout taping
Artificial dielectrics for microwave lenses
CD100 Sept 26
Assemblying simplified by wire lists....PT112 June 6
Atmosphere, radiometer for studying...EAW92 Aug 15
Atmospheric angels mimic radar echoes....140 Mar 14
Atomichron, primary frequency standard using
80 Nov 7
resonant cesium
Atomic reactors, transistor circuit for pro73 July 18
tection of
CD192 Mar 14
Attenuators, metal film mica
Audio and color video diplexing, relay system
64 June 20
for
Audio oscillator, variable, for nondispersion
82 Dec 5
infrared analyzer
Audio, public address system uses wireless
54 Jan 3
microphone
Audio, transistorized PA system adjusts to air106 Feb 14
craft noise
64
June 20
Aural -visual diplexer
Aurora propagation studies using low noise
52 Jan 11
uhf converter
AUTOMATIC CONTROLS
CD100 May 23
Automatic assembly, resistor for
Automatic dial for transformer ratio arm
CD100 Dec 19
bridge
Automatic dispensers, flux -solder for pasting
PT132 Sept 12
62 Apr 25
Automatic language translator
Automatic mail sorter for letters addressed by
62 Apr 25
typewriters or printing devices
Automatic pilot, phase -selective gate rejects
voltage quadratures in servo loop for. -92 Dec 19
Automatic range selector for electronic volt84 Aug 1
meter
Automatic recycling circuit for electronic clock
74 Feb 28
indicating related time -of -events
Automatic relay control for shutting off crystal
66 July 18
lapping machine
71 May 23
Automatic speech amplitude control
Automatic temperature controls for automobiles
73 Nov 21
Automatic testing of high -volume equipment
73 Oct 24
assemblies
Automatic testing of missile balance....PT120 Nov 7
Automatic tuning of tv receivers using sound
54 Apr 25
signal
Automation, automatic control of overhead
63 Jan 3
crane using taped tones
Autopilot computer uses 140 transistors
EAW108 Apr 11
EAW94 June 6
Auto steered by servo system
EAW92 Aug 15
Auto tachometer uses transistors
B
Balancers, dynamic, for environmental testing
9 Mar 28
76 Nov 7
Balloon gear monitors cosmic radiation
Balun design for radio direction -finding an81
Oct 10
tenna system
Barium titanate ceramic transducer for sonar
58 Jan 3
systems
Barium titanate electrostrictive transducers for
59 June 20
ultrasonic flaw detector
Barium titanate resonant filters used as 1-f
59 Apr 25
transformers
Barium titanate transducers for undersea tele84 Oct 10
meter system
Barium titanate transducer used as microphone
68 June 6
Basic logic modules speed programming.CD104 Sept 26
PT92 Apr 25
Battery cases, extruded plastic
Battery selection chart for missile applica59 July 18
tions
EAW95 June 20
Batteryless flash unit
Bead chain and turret terminals, machine for
PT130 Sept 12
setting
Beam -rider missile, target simulator for....32 Jan 31
Beam -switching tube for binary word generator
used to test and evaluate digital systems.71 Feb 28
Beam -switching tube celestial and solar time 74 Feb 28
of -events indicator
Beam -switching tubes used in decade decimal
88 Jan 17
counter to speed readout
Beam -tube, physical arrangement of for primary frequency standard
80 Nov 7
Bench tools speed wire preparations...PT106 June 20
Beta falloff of transistors displayed by sweep
equipment
100 Dec 5
B -H tester to measure memory core parameters
76 Jan 17
Bismuth telluride, used as thermoelement to
cool density gage
80 Dec 5
Bistable circuits using unijunction transistors
89 Dec 19
Bistable unijunction transistor circuit, clamping diode used in modified version of 89 Dec 19
Bistable unijunction transistor circuit, diode
decoupling used in modified version of 89 Dec 19
Billlar T traps improve tv Dicture...EAW100 Nov 21
Blackout of electron tubes, discussion of 90 Sept 12
Blast and shot counter uses strobotron.EAW94 Aug 15
Blocking oscillator is crystal controlled
EAW88 June 20
Blood pressure, intracardiac, transducer for
measurement of
62 Apr 25
Blood pressure monitored by transistorized
unit
82 Aug 15
Blood transfusions, air bubbles in blood controlled using acoustic detector
50 Mar 28
Bobbins fed to coil winder by merry-goround
PT124 Apr 11
Bomarc missile automatically checked out with
go -no-go gage
43 July 4
Bolometer bridge used in ergmeter to measure
energy bursts
79 June 6
Boxed -shaped tube envelope
CD98 July 18
Brain waveforms analyzed by computer
68 July 18
Brake light warning system for automobiles.73 Nov 21
Brazing machines for the electronics industry
73 Oct 24
Brazing rings made by lathe mantrel....PT92 Mar 28
36
CD86 Mar 28
CD100 Dec 19
Bridge features automatic dial
British tv link to use travelling wave tubes
EAW96 July 18
CD96 June 20
British work on flat tv tube
Broadcast frequency measured by oscillators
EAW108 Nov 21
EAW96 Nov 7
Broadcasting phone calls
PT145 Feb 14
Brushes cast in continuous strips
Bubble gum bubbles find leaky joints-PT128 Dec 5
Built-in ion trap protects cathode....EAW126 Feb 14
PT118 Aug 1
Built-in microphone preamplifier
equipment, are temperature -stable
CD88 July
Cable impedance tests made quickly-EAW86 Feb
CD60 Aug
Cable, reverse -twisted
Cabling machine speeds conductor twining
28
29
40 Jan
31
Cabinets,
4
PT128 Nov 7
CD104 Aug 15
Calefaction, special tube fins offset
transistorized
frequency,
for
Calibrator,
direction
finder
EAW115 Oct 10
CAMERA CONTROLS
Camera, crt recorder
compares transients
84 Jan
photographically
Camera, motion picture, frame -rate checker for
88 Sept
Camera used with scope and tv test, fast tranPT118 Aug
sistors
Camera shutter speed measured with high -im64 Feb
pedance input d -c transistor amplifier
Camera, still, electronic timer controls shutter
to take single frame photos of Oct presenta83 Apr
tion
Camera, tv, focusing helped by resolution
100 Feb
chart
Camera uses chocolate bar modules....PT106 July
Circuit planning simplified by using models
PT200 Mar 14
EAW94 June 6
Circuit shifts phase 360 degrees
Circuit to generate tape stop signal...EAW115 Sept 12
Circuit times operation of portable tools.EAW62 Jan 31
Circular polarization of split reflector micro86 Dec 19
wave antenna
Capacitance -shortened
quarter
nomograph
Capacitor impregnant,
wool
28
11
14
18
PT120 Oct 24
using
59 Mar 28
CD190 Mar 14
Capacitors, hip mount, save space
Capacitor, smallest molded mica type-CD106 May 9
Capacitors. monolithic -structure ceramic.CD118 Dec 5
Capacitors, multiple -unit feedthrough CD98 June 20
Capacitors, nonlinear, for sweep frequency os51 Jan 3
cillator in endoradiosonde
Cardlotachometer, used in foetal heart rate
82 Apr 25
recorder
Carder aircraft approach velocity measured
EAW102 Nov 21
with electro-optical system
Carrier, program and warning -tone sequencing
74 May 23
in Conelrad alarm system
in continuous strips....PT145 Feb 14
Casting
Cast -instrument stick permits high packaging
CD116 Aug 1
densities
Catalyst and hot air keep epoxy fluid PT121 Nov 21
Cathode protected by built-in ion trap.EAW126 Feb 14
Cathode -follower gain approaches unity.EAW94 Jan 3
Cement setting time determined electronically
88 Oct 10
Ceramic capacitors with monolithic strucCD118 Dec 5
ture
Ceramic hydrogen thyratrons, objective rating
CD114 Dec 5
for
EAW100 Oct 24
Centrifuge teats missile parts
Ceramics ground faster by dual method.PT112 June 6
Ceramic spheres make light and inert filler
PT115 Aug 15
PT113 Jan 3
Ceramic spray produces radomes
CD114 Dec 5
Ceramic th,vratrons, high -power
CD101
July 18
Ceramic receiving tube report
Cesium, resonant, used in primary frequency
90 Nov 7
standard
59 Mar 28
Chambers, environmental test
Character generation by spot deflection on
72 Jan 3
crt screen
Character recognition device for automatic
62 Apr 25
mail sorter
CHARTS
nomograph for conversion
grounded -base transistor parameters
grounded -emitter form
77 Aug
1
3
tive frequency divider
Close -tolerance temperature tests
1
94 Dec 19
used as
CD97 Feb 28
Capacitors, environmental testing of
cylinderical load -life oven
1
Clock, electronic, reads related time -of -events
74 Feb 28
Clock, two -level molecular maser as
66 Apr 25
Clock oscillator for range computer system 94 Sept 12
Clock, precision, driven by transistor regenra-
12
transmission line resonators, design of with
Capacitor plates, tester for sorting
Clock calibrator for radioactive fallout time 69 Aug
of -arrival indicator
EAW86 Jan
Clock driven by transistor
17
wavelength
wax
CLOCK CIRCUITS
Clock reading circuit for automatic digital
96 Feb 14
system of billing telephone calls
Clock, synchronous motor or driven by transistor chopper
64 May 23
CAPACITORS
Charts and
64 May 23
motor
Circuit compensates for brightness during
photographing of oscilloscope screen EAW96 Dec 19
Clamping diode, used in modified version of
bistable unijunction transistor circuit 89 Dec 19
C
strain gage oscillator
Calibrator plots aircraft
errors
Chopper, relay, used in B -H tester for meas117 Jan 17
uring memory core parameters
PT106 July 18
Chocolate bar modules in camera
Chopper, transistor, drives a synchronous clock
of
to
75 Mar 28
Chart and nomographs for designing stability
122 Feb 14
into transistor circuits
Chart, dissipation, for T attenuators..EAW92 June 20
Chart, fault location, for electronic -tube type
76 May 9
12AU7
Chart for determining internal temperature
106 Oct 10
of components
Character formation using shaped -beam crts 74 Sept 26
Characteristics of Stellarators used to con75 Dec 19
trol thermonuclear power
Charging and firing circuits for Stellarator.75 Dec 19
Chart for designing capacitance -shortened
quarter wavelength transmission line reson94 Dec 19
ators
Chart for estimating ram -air temperature rise
from Mach number, altitude and outside air
59 Mar 28
temperature
Chart, resolution, for aiding tv camera focus100 Feb 14
ing
88 Aug 15
Charts, amplifier delay
Charts for predicting paraboloidal antenna
104 Sept 12
radiation pattern
Chart, Smith, for determining transmission
66 Apr 25
line characteristics
Chart, Smith, for determining two-sided
matching design of lossless transmission
104 Apr 11
lines and waveguides
Chart, Smith, to solve problems in uhf im102 Dec 5
pedance matching
Charts list small -signal performance of transistors in terms of h -matrix parameters.81 Feb 28
PT97 Apr 25
Charts, plastic gaging
Charts of radio noise to aid engineers.EAW96 July 18
Chart, tilt, for displaced antenna feed.EAW80 July 4
CD121 Sept 12
Chart, toroidal core winding
84 July 16
Chart, tube noise factor
Chemical reagents, transistorized portable
80 Dec 5
liquid -density gage for measuring
EAW86 June 20
Coating heater wire concentrically
PT128 Oct 24
Code to voice communications
EAW95 June 20
Coil, induction -heater, does not arc over. CD84 July 4
Coil mounts, interchangeable h -f heating
PT109 June 20
Cold -cathode circuits, design of
EAW101 Jan 17
Color masks, salvaging of
PT100 Feb 28
Color video and audio diplexing, relay system
for
64 June 20
Comet shows crt beam direction
EAW88 May 23
COMMUNICATIONS
Communications, speech, selection of modulation methods for
56 Mar 28
Communication system, uhf line of sight,
f -m exciter for
148 Mar 14
Communication, underwater with modern sonar system
56 Jan 3
Communications, aircraft. Air Force environmental test procedures for
59 Mar 28
Communications, code to voice
EAW95 June 20
Communications, missiles, Air Force environmental test procedures for
59 Mar 20
Communications path provided by meteor
bursts
42 Aug 20
Communications, point-to-point
EAW92 Aug 15
Communications, using markerless pulse train
modulation for
89 Nov 21
Communications, vehicular military,
controlled -frequency transistor transceiver for
96 Oct 10
Communications, wireless,
radiant energy
power circuit for
83 May 9
COMPARATORS
Comparative performance of a -m, dsbsc, ssb
and f -m for voice communication
56 Mar 2R
Comparator, analog, for production testing -47 Mar 2R
Comparator, compensated, for summing two
voltages using electronic switch
81 Jan 17
Comparator for normalizing type faces in character recognition device
62 Apr 25
Comparator, reference level, for reciprocating
engine analyzer
68 May 9
Comparator, transistor, for analog -to -digital
converter
90 Aug 1
Comparator, voltage, for transistorized pdm
telemetry keyer
81 Sept 12
Comparison circuit measures a -c peaks.EAW101 Nov
Compatible stereo disk uses f -m multiplexing
65 June
7
6
COMPONENTS
production, advance in within
electronics industry
73 Oct 24
Components, electronic, spin testing for
CD8ft Apr 25
Component standards set by AIEE
CD92 Feb 28
Components tested with radioactive gas PT70 Jan 31
Component sticks, high density
PTI08 May 23
Component testing using punched cards..CD94 Feb 28
Component
Composite circuit layout guides satellite assembly
Compressor -expander, analog
Computer, analog, for positioning
Bank radio telescope
PT82 Apr 25
52 July 4
Jodrell
70 June 6
COMPUTER
Computer, analog, for target simulator used to
test beam -rider missiles
32 Jan 31
Computer analyzes brain waveforms
88 July 18
Computer,
asynchronous, used in automatio
language translator
62 Apr 25
Computer circuit board handles are removable
PT104 Jan 3
Computer control system for automobiles 73 Nov 21
Computer digital for automatically billing telephone calls
96 Feb 14
Computer, elementary, plays tick-tac-toe
68 June 20
Computer for autopilot uses 140 transistors
Computer,
sign
analog,
speeds
EAW108 Apr 11
missile
deEAW96 Dec 19
Computer. digital recorder supplies wind -tunnel data on punched -cards for
86 Dec 5
Computer matches reference diodes
PPI20 Nov 21
Computer readout circuits for electronic high
speed printer
74 Sept 26
Computers, scientific, electronic high-speed
printer for
74 Sept 26
Computer, simultaneous, driven by transistor
half -adders
80 July 18
Computer system, range, using communications transceivers
94 Sept 12
Computer, transformation, for radar target
simulators
82 June 6
Computer used to simulate video coding methods
72 Nov 7
Computer uses high speed diode
CD102 May 9
December 19, 1958
ELECTRONICS engineering issue
Computing system for measuring geographic
position uses electronic clock to read re74 Feb 28
lated time -of -events
Conductors made into cable faster with new
PT128 Nov 7
cabling machine
Conelrad alarm system uses gated neon war74 May 23
bler
Conelrad, radiant energy powered receiver designed for use with
83 May 9
PT88 Jan 31
Connector, multi -lead, is solderless
Connectors, hollow -pin, resistance soldering of
PT122 Oct 24
Contact barrel fastened to panel by anvil and
PT90 July 4
die
PT97 Apr 25
Contacts cleaned by oil
CONTROL SYSTEMS
Contour plotter monitors multiple -beam radia98 Dec 5
tion
Control, air traffic, application of three-di81 May 23
mensional crt to
71 May 23
Control, automatic speech amplitude
Control receiver circuit for ultrasonic tv chan68 June 6
nel selector
Control, remote, for garage doors, radiant
63 May 9
energy power circuits for
Control, remote, of tv receivers, ultrasonic
68 June 6
channel selector for
Control system, computer, for automobiles 73 Nov 21
Control system, feedback, regulates iron lung
EAW108 Oct 10
Control unit, rapid -acting, for proximity trans73 June 20
ducer system
73 Apr 11
Control unit, rate, for artificial heart
Controlling portable liquid -density gage using
80 Dec
semiconductors
5
CONVERTER
Converter, am -to -fm,
using transistorized
40 Jan 31
strain gage oscillator
90 Aug 1
Converter, crystal, for tropo-scatter re.ceivers 78 Apr 11
Converter, data, for Vanguard program using
66 Jan 17
linealized magnetic -core memory
Converter, diffused -base transistor, for f -m
72 Aug 1
tuner
Converter, digital -to -analog, for electronic
74 Sept 26
high-speed printer
Converter, low noise uhf for IGY propaga52 Jan 31
tion studies
Converter, power transistor, for photoflash -29 Aug 29
Converters, d -e to a -c transistor, designing
78 Sept 26
of
43 July 4
Converter, signal, for go, no-go gage
Converter, transistor power, for driving tape
86 Nov 21
transport motor
Converter, analog -to -digital, transistor
Converting of chemical to electrical energy
CD116 Oct 24
efficiently using gaseous fuel cell
Cooling portable liquid -density gage using
80 Dec 5
semiconductors
Cooling unit is part of electronic package
CI)96 Feb 28
Copper is temporary base for inlaid circuits
PTI10 Aug 15
Copper -sprayed forms contact surfaces of siliPTIO8 July 18
con carbide varistors
Core, magnetic, integrator -amplifier speeds
110 Feb 14
grading and matching
Core, memory, measurement of parameters
76 Jan 17
using B -H Tester
Core, memory, two -aperture (cyclops) used to
measure current from Lyman -alpha detector
56 Feb 28
radiation in scientific earth satellites
Core swager is driven by shaper ram_PTIO6 Dec PI
Core, toroidal ferrite with trifilar winding for
high-speed transistor switch circuits in
66 Jan 17
Vanguard data conveter
Cores, rectangular hystersis loop, for digital
magnetic countdown device
flexible
decade, is
Counter,
liable
78 Apr 11
reEA.W104 Dec
and
5
COUNTERS
loaded -diode, calibrates missile
93 Feb 14
testing camera
Counter. micrometeorite collision, for Lyman 58 Feb 28
alpha scientific earth satellites
Counter, ring, transistor or tube with in89 Apr 11
creased counter capacity
Counter, ring, using bistable unijunction
59 Dec 19
transistors
Counter, time interval, uses decimal system to
88 Jan 17
speed printed readout
Countermeasures, radar, simulator for testing
62 Apr 25
effectiveness of
Counters, decade for delay timer in go, no-go
43 July 4
gage
Counters, serial flip-flop, for producing charts
crt 2 Jan 3
on face of
Counter synchronizer for time -compressed
52 July 4
single-sideband systems
Countermeasures targets, electronic simulator
78 Dec 19
for generating
Counter -telescope used to measure effect of
EAW96 Dec 19
solar disturbances from balloon
Counter,
Counting done by frequency division....CD98 July 18
Counting metallic materials with proximity
73 June 20
transducer system
Count rate meter for brain -wave analyzer 68 July 18
Crane, overhead, automatic operation of
63 Jan 3
Crossed -field traveling -wave tube
CD122 Oct 10
68 May 9
Crt, analyzes reciprocating engines
Crt. annular geometry electronic gun for beam
control in
62 Apr 25
Crt, beam deflection control in photoelectric
78 May 23
function generator
EAW88 May 23
Crt beam -direction marker
Crt displays improved with transparent
CD92 Feb 26
phosphors
EAW90 MAY 9
Crt images persist for days
Crt producing numeric and alphabetic characters on screen
72 Jan 3
Crt, shaped -beam, used in electronic high74 Sept 26
speed printer
Crt shuttered
photos
by
timer
Crt, three dimensional
for
single
frame
83 Apr 11
81 May 23
CRYSTALS
Crystal controlled blocking oscillator..EAW88 June 20
Crystal converter for tropo-scatter receivers
78 Apr 11
Crystal impedance meter for checking VHF
82 May
quartz crystals
9
Pierce arrange-
Crystal oscillator, modified
100 Apr 11
ment for shf frequency standard
Crystal oscillator, overtone, used in low noise
uhf convertor for JOY propagation studies
Crystal oscillator,
sign of
transistor,
52 Jan 31
graphical de90 Dec 5
Crystal oscillator, transistorized, for synchro64 May 23
nous clock driving circuit
Crystal oscillator, transistorized, generates
118 Feb 14
variable frequencies
Crystal oscillator used with harmonic ampli80 June 20
fier for X -band local oscillator
Crystals, advance in production of in elec-
73 Oct 24
tronics plants
Crystal's frequency Is cleanliness test... PT118 Aug 1
Crystal reference system for controlled -fre96 Oct 10
quency transistor transceiver
PT128 Apr 11
Crystals, resin purifies water for
Crystal scintillators used to detect solar radiaEiW 96 Dec 19
tion from balloon
Crystals, quartz, stabilize multichannel f -m
81 Dec 19
monitor
Cube -oriented steel magnetizes more easily
EAW108 Jan 17
Current, digital recorder for printing out
86 Dec 5
measurements of
Current overload circuit for protecting tran-
74 June 20
sistor power supplies
CURVES
Curve, aft
control voltage as a function of
54 Apr 25
sound carrier frequency
Curve for beam current as function of control
grid voltage in annular geometry electronic
82 Apr 25
gun for crt
Curve for determining internal temperature
106 Oct 10
rise of components
Curve, gain -bandwidth, for solid state maser
66 Apr 25
amplifier
66 Apr 25
Curve, maser oscillator characteristic
Curve of frequency control voltage as function
54 Apr 25
of time for aft circuit in tv receiver
Curve of intercarrier sound amplitude as a
function of oscillator tuning in tv receiver
of
Curve
54 Apr 25
frequency selectivity of two -disk
barium titanate resonant filter at various
59 Apr 25
temperatures
Curve, operating characteristics of strobotron
86 Aug 1
Curve, phase shift and insertion loss of wall 56 July 4
loaded waveguide
Curve, pulse permeability, for designing block78 Feb 28
ing oscillator transformers
Curve reproduction using crt photoformer 78 May 23
Curve, spin distribution, for three -level solid66 Apr 25
state maser
Curve, spin -distribution, for two modes of
66 Apr 25
three -level solid-state maser operation
Curve, voltage control, for automatic fine
54 Apr 25
tuning circuit in tv receiver
conventional substitution
Curves,
aging,
method compared with crystal parameter
82 May 9
bridge method of checking
Curves comparing selectivities of 3 -disk barium
titanate resonant filter with double -tuned
59 Apr 25
transformer
Curves comparing selectivities of composite
barium titanate resonant filter with single 59 Apr 25
tuned transformer
Curves, design, for narrow -band h -f tuned
amplifier
Curves, effect on vswr
165 Mar 14
of tapering and off-
56 July 4
setting ferrite slabs
Curves, energy distribution, for normal and
71 May 23
differentiated speech
Curves for designing low-pass R -C filter with
100 Oct 10
optimum response
Curves for designing transistor oscillators -90 Dec 5
fragility level, for electronic com92 Apr 11
ponents
frequency response, for crt photo 78 May 23
former circuit
Curves,
Curves,
Curves, frequency response, for three -channel
79 May
a -f selective amplifier
Curves, performance characteristics of com-
9
mon 1 -lb batteries at various temperatures
59 July 18
Curves, phase -shift, for feedback amplifiers -86 May 9
Curves, plate sensitivity and frequency re74 Aug 1
sponse, of Franklin superregenerators
Curves, pulse -initiation, for designing blocking
78 Feb 28
oscillator miniature transformers
Curves, pulse width, for designing blocking
78 Feb 20
oscillator miniature transformers
Curves, selectivity, for selective a -f circuit 79 May 9
Curves, temperature and altitude effects on
86 Aug 1
machine gun firing circuit
Curves, time delay, for various types of ampli88 Aug 15
fier
Curves, typical discharge, for ammonia 59 July 18
vapor -activated battery
Curves, typical discharge, for chlorine -de59 July 18
polarized battery
Curves, typical discharge, of lead -acid bat59 July 18
tery
Curves, typical voltage characteristics of high 59 July 18
rate batteries
Curve, time -delay calibration for machine gun
86 Aug 1
firing circuit
Cut and strip setup, micrometer adjustments
PT113 Aug 15
for changing
PT144 Feb 14
Cutting coolant fed by flanges
Cyclops cores simply earth satellite circults..56 Feb 28
Cyclotron, electronic, magnetometer for continuously monitoring magnetic field in....152 Mar 14
Cytological measurements, disk scanning sys62 Apr 25
tem for
Dampers, structural,
fragility curves
affect
on
component
92 Apr 11
86 Dec 5
Data, digital recorder to printing out
EAW88 May 23
Data handler, high speed
Data logger programmed on pin board...PT90 Mar 28
Data processing, used to automatically bill
for telephone calls
96 Feb 14
D -c amplifier, two -stage, for watch timer 84 Dec 19
D -c
fiers
measurements using
magnetic
ampliEAW96 Dec 19
D -c amplifier, balancing, or control systems.96 Nov 21
D -c to d -c transistor power converter
29 Aug 29
ELECTRONICS engineering issue - December 19, 1958
flexible
and reEAW104 Dec
5
PT116 Jan 17
Decades, Preassembled indicator
Decoder circuit for range computer system..94 Sept 12
Decoder, diode matrix, for data converter used
66 Jan 17
in Vanguard program
Decoder, SAGE radar input monitor, circuit
76 Aug 15
for
4
Defense aided by radar development...EAW74 July
Defense
systems,
low -frequency
long-range,
CD112 Nov
radar antenna for
Degrease vapor develops printed wiring PT120 Nov
Delay line for forming sonar transducer beams56 Jan
7
7
3
Delay lines made compact using waveguide88 Oct 24
coils
Delay line waveshaping in last stage of mag9
72 May
netic modulator
Demodulator, matching transistor diodes for.75 Jan 17
Demodulator circuit, pulse period, for marker 89 Nov 21
less pulse trains
Demodulator, S -band two-phase, for image re 7
receiver
Demodulator, transistorized
72 Nov
phase -sensitive,
102 Feb 14
used with intruder alarm
EAW172 Mar 14
Demonstrator airplane sells gear
97 Dec 5
Design of transistor switches
Design techniques for malting more accurate
CD102 Dec 19
EAW101 Jan 17
synchros
Designing cold -cathode circuits
Detection of leaks in auto suspension system
82 Dec 5
using infrared techniques
Detection of leaks in pneumatic line using
PT128 Dec 5
bubble gum
DETECTOR
Detector. acoustic cavity, for sensing breaks
in film, indicating position of meter vanes
and control air bubbling during blood trans-
50 Mar 28
fusion
Detector, burst, used in meteor -burst com42 Aug 29
munications receiver
Detector, cadmium -sulphide, for solid-state
62 June 20
photocell
Detector cells, indium-antimonide, offer wide
48 July 4
infrared response
Detector circuit for high-speed magnetic tape
92 Nov 21
search system
Detector circuit, null -position transistorized,80 Dec 5
for density gage
Detector crevasse, for discovering hidden pit63 Jan 17
falls
Detector, electrometer, used to measure Lyman -alpha radiation in scientific earth
56 Feb 28
satellites
52 Apr 25
Detector, foetal heart beat
EAW50 Aug 29
Detector, high -frequency phase
Detector, infrared, for low -light applications
CD114 Nov 7
Detector, magnetic field strength, used with
152 Mar 14
magnetometer
Detector, microphone, used to converter micro meteorite collisions with Lyman -alpha scientific earth satellite to electrical signals...56 Feb 28
Detector plots eye movements while subject
36 Jan 31
reads
Detector, positional, radiant energy powered
63 May 9
transponder for
Detector, transistorized gamma -ray, aids oil
61 May 23
field surverys
Detector, transistorized phase sensitive, used
102 Feb 14
in intruder alarm
Detector, voltage, two-way electronic switch
81 Jan 17
used as precision cathode follower
Detector, zero -cross, for brain -wave analyzer
68 July 18
Detector -rectifier, for instrument used to dis100 Dec 5
play transistor beta falloff
Deviator, frequency, for airborne tv military
66 May 23
reconnaissance system
Dials and scales are self -illuminating. ..CD61 Aug 29
Dielectric breakdown, solid-state switch uses
CD108 Aug 1
Differential transformer, portable liquid -dens80 Dec 5
ity gage uses
Differential transformer transducer, descrip59 July 4
tion of
Digital amplifiers use saturable transformers
EAW74 July 4
Digital system for automatically billing tele96 Feb 14
phone calls
EAW86 June 20
Digital display is all electronic
Digital display, light from solid state device
CD86 Mar 28
Practical for
Digital motor for severe environments...CD110 Nov 7
Digital recorder for printing out wind -tunnel
8 Deo 5
data
DIODES
Diode cheeks
tester
speeds using
reverse -current
EAW88 Jan
3
Diode, clamping, used in modified version of
bistable unijunction transistor circuit....89 Dec 19
Diode cuts transistor cutoff -current drift...83 July 18
Diode decoupling used in modified version of
98 Dec 19
bistable unijunction transistor circuit
Diode gates, Germanium, used in contour
98 Dec 5
plotter for monitoring multiple-heam
Diodes offset silicon transistor heat drift
EAW176 Mar 14
65 Sept 26
Diodes, relationship to mavars
Diodes, unmatched, used in phase -selective
92 Dec 19
gate for rejecting voltage quadratures
Diodes, Zener, reverse breakdown characterCD86 Mar 28
istics
Diodes, dipping, in improved version of non 158 Mar 14
differential multivibrator
Diodes for r -f current control in wireless
54 Jan 3
microphone transmitter
Diodes for squelch action in receiver of wire54 Jan 3
less microphone system
Diodes, Germanium for miniature rate servo
89 Jan 3
system
Diodes, in transistorized reflex -type radio re66 Jan 3
ceiver
Diodes, silicon,
D
is
counter
Decade
liable
for
fast -response
magnetic
servo amplifier used to drive gyro indicator
114 Feb 14
Diodes, Zener silicon, used in direct drive
146 Mar 14
amplifier for two -speed servo system
Diodes, subminiature silicon for miniature rate
69 Jan 3
servo system
Diode -transistor matching using variable re75 Jan 17
sistor between collector and base
65 Sept 28
Diode type mavars
Dip brazing assembles magnesium waveguides
PT118 Jan 17
Dip -brazing eases machining of complex parts
PT196 Mar 14
64 June 20
Diplexer. aural -visual
37
Dip solder machine uses solder pumps..PT108 Jan 3
EAW84 Feb 28
Direction finding, radio, gets push
EAW174 Mar 14
Discharge path forms tree
Discriminator, for shf frequency standard..100 Apr 11
Discriminator, frequency, high -Q unbalanced
155 Mar 14
crystal filters for
Discriminator -limiter circuit for range com94 Sept 12
puter system
Discriminator, servo, controls aircraft alter94 Oct 10
nator
Discriminator, word, for SAGE radar input
76 Aug 15
monitor, logical design of
Disk scanning system for cytological measure62 Apr 25
ments
Dispenser jig feeds single laminations...PT124 Jan 17
Displaced antenna feed, tilt chart for. EAW80 July 4
EAW86 June 20
Display, digital, is all electronic
Displays, airborne radar, recorded using light
80 Aug 1
modulation
Display selector for SAGE radar input monitor
76 Aug 15
Display, three-dimensional, using experimental
81 May 23
crt
Distress transmitter is hybrid of transistors
EAW98 Aug 1
and tubes
Distortion curves for dual -channel stereophonic
77 Dec 5
amplifier
Divider, transistor regenerative frequency,
77 Aug 1
drives precision clock
Dividers, magnetic -core, for itv sync gen76 Apr 11
erators
Dollies used
to move instruments in close
quarters
PT124 Dec 5
Doppler direction finding system using circular
44 Jan 31
array of antennas
Doubler, common -grid voltage, for uhf fpm
148 Mar 14
exciter
Double -triggering scheme stabilizes phanastron
EAW104 Nov 21
frequency divider
Drill press positioning table controlled by
PT114 Aug 15
taped program
transistor
Driver circuits, access, using
66 Jan 17
switches for Vanguard data converter
Driver, digit -plane, for gating sense amplifier
66 Jan 17
output in Vanguard data converter
Drivers. constant -current transistor, used in
66 Jan 17
Vanguard data converter
Dsbsc, comparison with a -m, f -m and ssb for
56 Mar 28
voice communication
Dual feed horn for split reflector microwave
antennas
86 Dec 19
Dust and sand. Air Force environmental test
59 Mar 28
Procedures of electronic systems for
EAW90 June 20
Dynamic test for regulators
52 Mar 28
Dynistor, switching capabilities
Echoes, radar
angels
mimicked
by
atmospheric
140 Mar 14
Echo ranging with modern sonar systems....56 Jan 3
Effective power with transistors
CD120 Apr 11
Electrical conduction in gas, relationship of
thermonuclear reaction to study of
75 Dec 19
Electroluminescent and ferroelectric two-di62 Apr 25
mensional display device
Electroluminescent light for automobile Interiors
73 Nov 21
Electroluminescent light source is flexible
EAW128 Feb 14
Electroluminescent material used on solidstate panel for X-ray amplification
84 Sept 12
Electromagnetic energy from distant sources
power transistor receiver
63 May 9
Electrometer, used with analog comparator 47 Mar 28
Electromoeter for measuring Lyman -alpha
radiation in scientific earth satellite
56 Feb 28
Electronic chopper uses new photocells.EAW90 May 23
Electronic package contains cooling unit-CD96 Feb 28
Electronics records reconnaistuice photo data
EAW80 Apr 25
Electronics saves punch press dies....EAW178 Mar 14
Electronics speeds exposures
EAW58 Jan 31
Electronic tube cage assembly machine..PT118 Nov 21
Electron tubes. advances in production of in
electronics plants
73 Oct 24
Electro-optical system to measure carrier aircraft approach velocity
EAW102 Nov 21
Electrostatic shield. wrapped cable for..PT126 Nov 7
ELF, an electroluminescent and ferroelectric
two-dimensional display device
62 Apr 25
Emitter characteristics of the uninjunction
transistor
99 Dec 19
Enclosure openings, noisefree, design of
48 Aug 29
Endoradiosonde telemeters temperature and
pressure data from digestive tract
51 Jan 3
Energy storage system for driving special transistor circuits
63 May 9
Environment, thermonuclear, electronic device
used to create
75 Dec 19
Environmental design criteria. Air Force, for
aircraft and missiles
59 Mar 28
Environmental severity, order of principal
types
59 Mar 28
Environment, severe, digital motors which will
operate in
CD110 Nov 7
Epoxies, fluorescent, show voids in coat PT110 Dec 19
Epoxy kept fluid with catalyst and hot air
PT121 Nov 21
Epoxy shells simplify potting of resistors.PT72 Jan 31
Epoxy used in transformer conducts heat
CD102 May 9
Equalizer, highlight, for sharpening tv Pic-
tures
72 Jan 17
Ergmeter measures bursts of energy
79 June 6
Etched design techniques for I -F amplifier
pares color tv cost
135 Mar 14
Exact inductance with variable torold.CD102 June 6
EXCITERS
Exciter, electrodynamic, for simulating forces
during environmental tests
59 Mar 28
Exciter, F -M, for UTIF line of sight communication or tropopheric scatter systems
148 Mar 14
Exciter, transmitter, for airborne tv military
reconnaissance system
66 May 23
Exciter, vibration, for driving environmental
59 Mar 28
test vibration machine
52 July 4
Expander-compresser, analog
Exploding wire experiment, low -voltage trigger
86 Apr 11
for
Explosion and altitude chambers for environ59 Mar 28
mental testing
Explosion -proofing. Air Force environmetal
test procedure of electronic systems for 59 Mar 28
38
F
standard, two -level molecular
66 Apr 25"
teaser as
Frequency tachometer, film, for calibrating
93 Feb 14
missile testing camera
Fringe tuning circuit disables sound trap in
54 Apr 25
tv receiver
Fail-safe circuit, electronic control times high70 Aug 15
speed welding cycle
Fail-safe circuits for Conelrad gated neon
74 May 23
warbler alarm system
Fail-safe operation, auxiliary trip circuits in
73 July 18
atomic reactors for
EAW86 Feb 28
Fast cable impedance tests
Fastener for subassembly has no loose Darts
PT12 7 Apr 11
EAW92 May 9
Feedback stabilizes fliii-floP
Full -wave rectifiers, for phase -selective gate
92 Dee 19
used to reject voltage quadraturee
CD114 Apr 11
Fundamental tube fault corrected
Fungus, Air Force environmental test proce59 Mar 28
dure of electronic systems for
Funnel flange eyelets for printed circuits.13108 May 9
Fusion, nuclear, components for controlling
EAW58 Jan 31
PT92 Apr 25
Exposures sped with electronics
Extruded plastic battery cases
Frequency
Fuel controllers, electronics, for automo73 Nov 21
biles
Full -wave, phase -controlled d -c power supply,
52 Mar 28
silicon controlled rectifiers used as
75 Dec 19
FERRITE DEVICES
Ferrite antenna array, comparison with re49 Apr 25
flector -type antennas
Ferrite -coated fiber disk converts pressures,
velocities and rate of angular motion into
41 Mar 28
electrical signals
Ferrite cores, for toroidal transformers used
in generator to produce characterson face
72 Jan 3
of cat
Ferrite cores used in linearizer magnetic66 Jan 17
memory of Vanguard data converter
Ferrite isolators, transfer characteristics
measurement of using backward wave tube
76 Jan 3
sweep osscilator
Ferrite -loaded waveguide as a microwave
56 July
phase -sifting elemet
4
Ferrite memory cores,n measurement of para76 Jan 17
meters using B -H tester
100 Oct 10
Ferrite plates for, end -fired memory
Ferrite Radiators Shrink Missile Antenna
49 Apr 25
Systems
Ferrite rod diameter, effective wavefore as
49 Apr 25
function of
Ferrite r -f tuner, rotary -axial, miniature, for
72 Feb 28
broadcast band
Ferrite unit, uhf, shifts phase 360 degrees
CD102 Aug 15
Ferroelectric
and
electroluminescent
two-
62 Apr 25
dimensional display device
65 Sept 26
Ferromagnetic mavar, discussion of
EAW94 Sept 26
Filament, rate -of -rise control for
PT115 May 9
Files sharpened with acid
Filler, light and inert, made using ceramic
PT115 Aug 15
spheres
FILTERS
Filter, active bandpass, has sharp cutoff....84 Aug 15
Filter, audio circuits, design curves for...165 Mar 14
Filter design, input, for receiver of ultrasonic
32 Aug 29
instrumentation system
Filter, high-pass, for instrument used to dis100 Deo 5
play transistor beta falloff
155 Mar 14
Filter, high -Q unbalanced crystal
Filter, low-pass R -C, with optimum response
100 Oct 10
Filter network, bridged -T, used in magneto152 Mar 14
meter
Filter, ripple, transistorized, for smoothing
95 Apr 11
low -voltage d -c power supply
Filters, ferment used in voicing panel of elec36 Aug 29
tronic organ
Filter, transistorized, to eliminate d -c bus
106 Feb 14
noise in aircraft pa system
Filter, transversal type for equalization of
72 Jan 17
highlight to sharpen tv picture
Filters, barium titanate, resonant, used as 1-f
59 Apr 25
transformer
Filters, transfer characteristic measurements
of using backward wave tube sweep oscillator
78 Jan 3
Filter, two -stage, for interferometer used to
81 Oct 10
track satellites
mitterEAWI80 Mar 14
Fire guards at intersection by uhf transFiring and charging circuits for Stellarator
75 Dec 19
Fish location using modern sonar systems...56 Jan 3
Fixture design makes wire assembly easier
Fixture, holding, frees hands in
PM Aug 29
assembly
PT92 Mar 28
oven
Flame jets replace slow annealing in PT106
July 18
PT144 Feb 14
Flanges feed cutting coolant
EAW95 June 20
Flash unit need no batteries
Flat tv tube being worked on by British.CD96 June 20
Flexible electroluminescent light source
EAW128 Feb 14
EAW92 May 9
Flip-flop stabilized by feedback
PT111 Sept 26
Fluidized resin coats hot parts
Fluorescent epoxies show voids in coat PTI10 Dec 19
Flux -solder pastes automatic dispensers PT132 Sept 12
F -m, comparison with a -m, dsbsc and sob for
56 Mar 28
voice communication
F-m/f-m telemetering system for balloon study
76 Nov 7
of cosmic radiation
F -m light -pulse transmission system for stabi76 June 20
lizing Cockroft-Walton generator
F -m monitor, multichannel. quartz crystals
for stabile
F -m multipexing used to produce compatible Dec 19
65 June 6
stereo disk
Foam -cushioned base for boxed instruments
PT110 May 9
52 Apr 25
Foetal heart beat detector
Foetal heart rate recorder detects foetal distress
Food, transistorized
2
portable liquid-denials
80 Deo 5
gage for measuring
Foot -operated vise tool seats grommets..PT95 July 4
Force data from wind -tunnel printed out by
86 Dec 5
digital recorder
Four -conductor stretch cable for high inertial
loads
Four -point transistor matrix for binary addiJulyDec
tion In half -adder
Frequency-coded data, digital recorder for
86 Dec 5
printing out
CD98 July 18
Frequency division used to count
circuits for broad -band
88 Nov
sweep generator
modulator covers 25 to 75 kc
EAW100 Aug
Frequency, resonant, of crystal used to test
PT118 Aug
its own cleanliness
Frequency -marker
Frequency
range
Frequency response for dual -channel stereo77 Deo
phonic amplifier
Frequency standard, primary, using resonant
80 Nov
cesium
Frequency standard, shf uses double conversion
7
1
1
5
7
100 Apr 11
December
G
Gage, go, no-go, to check out Bomarc missile
43 July 4
automatically
Gage, magnetic -field, locates encased metal
65 Aug 15
Darts
Gage, microwave, thickness measures radome
electrical thickness and defective constant
70 June 20
Gage, portable liquid -density cooled and con80 Dec 5
trolled by semiconductors
Gage, ultrasonic, of resonance type measures
29 Jan 31
thickness
Gallium rub prepares aluminum for solder
PT123 Aug
1
98 Dec
5
Gaseous fuel cell converts chemical to elecCD116 Oct 24
trical energy efficiently
PT123 Nov 21
Gas tests circuit component shorts
Gate, phase -selective, rejects quadrature voltage components
92 Dec 19
Gates, Germanium diode, used in contour plotter for monitoring multiple -beam radiation
GENERATORS
Generator, adjustable nonlinear function.CD84 July 4
Generator, binary word, for digital system test71 Feb 28
ing and evaluation
Generator, bootstrap ramp, for transistorized
81 Sept 12
pdm telemetry keyer
Generator, broad -band, has wide and narrow
sweeps
88 Nov 7
Generator, constant -current, for two-way elec81 Jan 17
tronic switch
Generator, course, for radar target simulators
82 June 6
Generator, digital timing, used to find data in
high-speed tape system
92 Nov 21
Generator, frequency, for ultrasonic thickness
29 Jan 31
gage of resonance type
Generator, function, programmed by use of
punched cards
PT142 Feb 14
Generator, harmonic, for producing characters
on face of crt
72 Jan 3
Generator, high -voltage Pulse, to drive pulsating X-ray tubes
138 Mar 14
Generator, microwave signal, frequency controlled by varying single voltage
72 Nov 7
Generator, microwave, using two quartz -crystal
secondary standard to stabilize frequency of
X -band reflex klystron
100 Apr 11
Generator, million -volt, stabilized by series
76 June 20
triode
Generator, multitarger, for jamming and interference simulator
78 Dec 19
Generator, photoelectric function, gives smooth
curve reproduction
78 May 23
Generator produces oppositely -phased noise to
eliminate noise
CD104 Aug 15
Generator produces output with function
two variables
of
EAW106 Apr 11
Generator, program, for jamming and interference simulator
78 Dec 19
Generator, pulse code, for range computer sys94 Sept 12
tem
Generator, pulse, for heat program timer controlling weld energy
76 June 6
Generator, pulse, for life -testing microwave
102 Sept 12
triodes
Generator, pulse, for radar noise figure moni49 Jan 31
toring system
Generator, random -target for jamming and interference simulator
78 Dec 19
Generator, reset -gate, for decade decimal
88 Jan 17
counter
Generators, r -f, for testing thermonuclear control components
75 Dec 19
Generator, saw -tooth, for relay system diplex64 June 20
ing audio and color video
Generators, neon tone, for electronic organ 36 Aug 29
Generators, noise, to approximate actual tracking condition of target in testing beam -ride
32 Jan 31
missiles
Generator, square -wave, for digital recorder
86 Dec 5
used to print out wind -tunnel
Generator, staircase, for electronic high-speed
printer
74 Sept 26
Generator, sweep and signal, for instrument
used to display transistor beta falloff. -100 Dec 5
Generators, transistorized trigger and delay
EAW96 Jan 17
Generator, sync, for airborne tv military
reconnaissance system
66 May 23
Generator, synchronizing, for reciprocating engine analyzer
69 May
tem
84 Sept 26
9
Generator, tbyratron noise, for radar target
simulators
82 June 6
Generator, transfer -gate, for decade decimal
counter
88 Jan 1
Generator, tridimensional vibration, for en59 Mar 28
vironmental testing
Generator, trigger and gate. for ultrasonic instrumentation system
32 Aug 29
Generator, trigger, for low -voltage switch used
to control high currents
86 Apr 11
Generator, video, for stop-go scanning sysGermanium diffusion depth measured using hot
PT106 Sept 26
probe
Germanium diode gates used in contour plotter
for monitoring multiple -beam radiation....98 Dec 5
Glass envelope for transistors
CD114 Apr 11
Glass parts laminated with liquid plastic
PT128 Oct 10
19, 1958 -
ELECTRONICS engineering issue
tcc
Gold, radioactive, measures river flow..EAW112 Jan 17
Graphical design of transistor oscillators 90 Dee 5
Grinding ceramics by dual method is faster
PT112 June 6
Grommets seated with foot -operated vise tool
PT95 July 4
Guidance systems, highway and garage, for
73 Nov 21
automobiles
Guided missiles, telemetry standards for 96 Oct 24
Gun, soldering, uses chassis resistance...PT106 Jan 3
H
Half -adders, transistor, drive simulataneous
80 July 18
computer
Hall -effect circulator, semiconductor....CD118 Oct 10
Harness guide, peg board photos give permaPT62 Aug 29
nent record of
Headaches of Russians cured by pulses.EAW88 Jan 3
Headlight dimming systems for automobiles.73 Nov 21
Heart, artificial, controlled by servo circuit 73 Apr 11
52 Apr 25
Heart beat detector, foetal
Heart block corrected by two -transistor am80 Nov 21
plifier
Heart rate recorder, foetal, detects foetal
62 Apr 25
distress
CD88 Mar 28
Heaterless tubes become smaller
PT128 Oct 24
Heater wires coated concentrically
Heating, ohmic, of deuterium gas by Stellarator
75 Deo 19
CD117 Deo 5
Hermetically sealed mobile gear
High -altitude chamber for full-scale aircraft
59 Mar 28
components
PT108 May 23
High density component sticks
High -dynamic -range differential amplifier....
EAW64 Jan 31
EAW50 Aug 29
High -frequency phase detector
High -heat resistant laminates for missiles
CD95 Feb 28
62 Apr 25
Highlights of IRE convention
High
packaging
densities,
stick for obtaining
cast -instrument
CD116 Aug
1
High-pass filter for instrument used to display
CD136 Feb 14
High -power transistor servo
CD102 May 9
High-speed computer diode
EAW88 May 23
High-speed data handler
CD190 Mar 14
Hip mount capacitors save space
Holding fixture frees hands in assembly..PT92 Mar 28
Horn antenna, radar, for helmets of civilian
EAW90 May
defense workers
9
73 Nov 21
Horn, electronics, for automobiles
Horn, sectoral, design of for rectangular slotted
waveguide array
94 Deo 5
Hot cell, model, to determine effects of nuclear
59 Mar 28
radiation
Hot parts coated using fluidized resin...PT111 Sept 26
Hot probe measures Germanium diffusion
PT106 Sept 26
depth
How transistor circuits protect atomic re73 July 18
actor
How transducers measure and control (special
59 July 4
report)
Humidity, Air Force environmental test pro59 Mar 28
cedure of electronic systems for
Humidity, dust and atmosphere control cham59 Mar 28
bers for environmental testing
Hybrid transistor and tube circuits used in
EAW98 Aug 1
distress transmitter
Hydrogen thyratron, ceramic for high -power
radar equipment
CD114 Dec 5
Ffvdrophone for modern passive sonar systems
56 Jan 3
Instrument
for
measuring
magnetic
field
strength continuously in electronic clotron
152 Mar
Instrument for measuring radar noise figures
directly and continuously
49 Jan
Instrument, portable liquid -density gage
cooled and controlled by semiconductors
80 Dec
Instruments boxed on foam -cushioned base
PT110 May
Instruments, electronic, for automobile dashboard
73 Nov
Instrument, sensitive magnetometer....EAW96 Aug
31
5
9
21
I
Instruments in balloon detect solar disturbances
EAW96 Dec 19
Instrument, watchmakers test, gives precise
time base
84 Dec 19
Insulation, development of for motor to
operate at 950 F
CD117 Dec 5
Instruments tested by vibration unit..EAW108 Oct 24
Integrated
tions
magnistor
for
digital
applica-
CD116 Nov
7
Integrator -amplifier for magnetic Core measurements
110 Feb
Integrator, computer -type, for character
14
INTEGRATOR
recognition
62 Apr 25
Integrator for B -H tester used to measure
memory core parameters
78 Jan
Integrator, gyroscopic precision, transistorized
crystal oscillator supplies constant -frequency
power source for
118 Feb
Integrator, stairstep, analyzes rotation
41 Mar
Intensifier orithicon tube for night
naisance
Interchangeable h -f heating coil
Interference, electronic simulator
reconCD98 July
mounts
PT109 June
provides
waveforms to produce effects of
78 Dec
Interferometer, microwave, for thermonuclear
measurements
75 Dec
Interferometer system of tracking earth
satellites
81 Oct
Interior lighting, electronic, for automobiles
73 Nov
Inverter, magnetic, transistor or tube, for
signal and power conversion
158 Mar
Inverter, synchronized, silicon controlled rectifiers used as
52 Mar
Inverter transistors used as rectifiers in photoflash converter
29 Aug
Ion chamber, measurement of current from
using magnetic amplifiers
EAW98 Dec
Ion chamber used to measure effect of solar
disturbances from balloon
EAW96 Dec
Ionization gage for Aerobee rocket
59 July
Ionized meteor trails provide communications
path
42 Aug
ERE 1958 convention highlights
62 Apr
Iron lung, control system for regulating..
17
14
28
18
20
19
19
10
21
14
28
29
19
19
4
29
25
EAW108 Oct 10
Jamming, electronic simulator provides waveforms to produce effects of
78 Dec 19
Jamming, free -space noise, susceptibility nomograph for radars
83 June 20
Jet engine noise simulation with acoustical
Power whistle
59 Mar 28
Jet spray and soak cleanse transistors-PT111 May 23
Jet spray automates transistor etching cycle
PT98 Feb 28
Jodrell Bank radio telescope sees 2 billion
I
light years
30- and 60-mc, waveform simulator for
generating countermeasures targets
78 Dec 19
Ignition systems, transistor h -f, for automobiles
73 Nov 21
timing,
of
dynamic
display
using
Ignition
41 Mar 28
stairstep integrator
Image on crt persist for days
EAW90 May 9
Impedance matching, uhf, Smith charts for
102 Dec 5
solving problems of
Impedance mismatch correction for single layer pill -box line feed antenna
86 Dec 19
70 June
6
I -f,
Improved tv picture
tube and set styling
CD102 May
9
INDICATORS
Indicator assembly, direct -reading, for readout
of thickness measured by ultrasonic gage
29 Jan 31
of resonant type
Indicator, for celestial and solar time -of 74 Feb 28
events for
Indicator, for determining time of arrival of
69 Aug 1
radioactive fallout
Indicator, gyro, driven by fast -response mag114 Feb 14
netic servo amplifier
Indicator, range, for range computer system
using communications transceivers
94 Sept 12
Indicators, electronics, for automobile dashboards
73 Nov 21
Induction -heater coil does not aro over CD84 July
4
Inertial loads of 800 G's sustained by four conductor stretch cable
CD100 Dec 19
Infinite inpute impedance d -c amplifier...87 June 6
Information storage, photographic system for.72 Nov 7
Infrared analyzer for missile study....EAW94 June 6
Infrared analyzers control production..EAW102 Oct 24
Infrared detection using reproducible indium48 July 4
anitomonide cells
Infrared detector for low -light applications
CD114 Nov 7
48 July 4
Infrared detectors, evaluation of
Infrared finds auto suspension leaks
82 Dec 5
Infrared light source for intruder alarm
using transistorized phase -sensitive de102 Feb 14
tector
Inlaid circuits, copper is temporary base
for
PT110 Aug 15
Input impedance matched by preamplifier
EAW81 Mar 28
Instrumentation system, ultrasonic, tests undersea propagation
32 Aug 29
INSTRUMENTS
instrument, contour plotter for monitoring
multiple -beam radiation
98 Deo
5
Instrument displays transistor beta falloff..100 Deo 5
Instrument dollies for close quarters....PT124 Dec 5
Instrument for detecting invisible flaws in
72 Sept 26
wire
K
Kenotron, X-ray, for f -m light -pulse transmission system
Keyer, airborne telemetry,
transistors
76 June
20
Keyer for Vanguard rocket telemeter transmission system
46 July
Key stations, carrier -off failure alarm sys-
4
ruggedlzed with
81 Sept 12
tem for
74 May
Key. ultrasonic, for opening automobile doors
73 Nov
Kit modifies wire wound potentiometers.PT202 Mar
Klystron amplifier uses capacitive tuning.CD56 Aug
Klystron tube output stepped up using
merry-go-round
PT110 May
23
21
14
29
9
L
Ladder networks, spacing jigs bold capacitors
for
PT104 Ian 3
Laminate punching speeded by heated both
sides of material
PT126 Sept 12
Laminates, high -heat resistant, for missiles
CD95 Feb 28
Laminations fed singly by dispenser fig PT124 Jan 17
Language translator, automatic
62 Apr 25
Lathe mantrel makes brazing rings
PT93 Mar 28
band waveforms simulator for generating
countermeasures targets
78 Dec 19
Lead powder connects superconducting film
PT92 July 4
Leaks fn pneumatic lines detected by using
bubble gum
PT128 Dec 5
Leaks in suspension systems of autos found
using infrared techniques
82 Dec 5
Life -testing components for environmental reliability
59 Mar 28
Life -testing microwave triodes, pulse generator
for
102 Sept 12
Lighting, interior electronics, for automobiles
73 Nov 21
Limiter, cathode -coupled, used in phase meter
99 Sept 12
Limiter, clipper, used 1n amplitude distribution
analyzer
162 Mar 14
Limiter -discriminator and squelch circuits for
range computer system
94 Sept 12
Linear accelerators make discharge path resembling a tree
EAW174 Mar 14
changes offset by regulated supply
EAW100 Jan 3
Line feed antenna, single -layer, pill -box, split
reflector for
88 Dec 18
Line
Line current controls remote tv receiver....68 Aug 15
ELECTRONICS engineering issue - December 19, 1958
94 Deo 19
pat: 19
Liquid filled potentiometers enhance reliability
CD138 Feb 14
PT128 Oct 10
Liquid plastic) laminates glass parts
Liquid -density gage, portable, cooled and
80 Dec 5
controlled by semiconductors
Liquefied gages, transistorized portable density
80 Deo 5
gage for measuring
CD118 Sept 12
Load -sharing matrix switch
EAW98 Jan 17
Locator, a -c zero
PT98 Feb 28
Logic circuits, transistorized
Low -impedance transistor preamplifler.EAW78 Mar 28
EAW170 Mar 14
Low -speed gate, neon triode for
Lyman -alpha satellite circuits simplified using
56 Feb 28
cyclops cores
Line resonator chart
14
Linear time base generated by watch timer
M
30-mo 1-f waveform simulator for generating
78 Deo 19
countermeasures targets
60-mo 1-f waveform simulator for generating
78 Deo 19
counter measures targets
Machine automatically winds synchro stator
P.M Mar 28
PY122 Dec 5
Machine composes schematics
chain
Machine for setting turret and bead PT130
Sept 12
terminals
Machine for producing pigtail assemblies for
PT130 Oct 10
Parts
Machine guns, airborne, firing circuits for
86 Aug 1
triggering
Machinery, production, for the electronics 78 Oct 24
Magnetic amplifier detects open fuses.. EAW88 July 18
measureamplifiers aid d -c
EAW98 Dec 19
Magnetic bottles, deuterium gas confined in
75 Dec 19
during thermonuclear reactions
Magnetic pencil lifts small magnetic parts
PTI28 Dec 5
Magnetio pickup head, used with stairstep
41 Mar 28
integrator
Magnetic
ment
Magnetic pumping using ion cyclotron reso75 Deo 19
nance
Magnetic shielding, wrapped cable for..PT126 Nov 7
Magnetoelectric transducers, description of.59 July 4
Magnetometer is made more sensitive..EAW96 Aug 1
field
magnetic
monitors
Magnetometer
152 Mar 14
strength continuously
Magnetometer, proton resonance, used in
56 Feb 28
scientific earth satellites
Magnetometer, USSR uses this country's
EAW97 June 6
Magnetron made by spark machining. ...CD112 Oct 24
Magnetrons, radar, fired by saturable re72 May 9
actors
Magnetostrictive transducer with doubled
CD114 Nov
efficiency
7
Magnetron, high -power, produces 5 megawatts
62 Apr 25
peak
Magnetron. L -band, capable of producing 3
62 Apr 25
megawatts peak
Magnistor, integrated, for digital applicaCD116 Nov 7
tions
Mall sorter, automatic, for letters addressed
62 Apr 25
by typewriters or printing devices
Mandrel, flexible steel, for bending waveguide
85 Oct 24
into coiled delay lines
Man-made environmental conditions, design
59 Mar 28
criteria for
Mapping, sea bottom using modern sonar
56 Jan 3
systems
Marine radar, rectangular slotted waveguide
94 Dec 5
array for
MASER
Maser amplifier systems, noise measurements
66 Apr 25
on
68 Apr 25
Maser, reflection -cavity
65 Sept 26
Maser, relationship to the mayor
EAW104 Deo 5
Maser supports relativity theory
68 Apr 25
Masers, traveling -wave
Maser, two -cavity ammonia -beam, for giving
62 Apr 25
one-way amplification
EAW76 Apr 25
Masks improve picture contrast
Matching design for two-sided lossless trans104 Apr 11
mission lines and waveguides
Matching transistor pairs, switching Para m97 Dec 5
eters for
Matching transistor -diodes
using
resistor between collector and base
variable
75 Jan 17
Matching, uhf impedance, Smith charts for
102 Dec 5
solving problems of
66 Apr 25
Materials, paramagnetic, for masers
Materials used in designing miniature trans-
78 Feb 28
former for blocking oscillators
Matrix, four -point transistor, for binary addi80 July 18
tion in half -adder
Matrix, identification, in digital computer for
96 Feb 14
automatically billing telephone calls
Matrix, memory plane, for magnetic -core data
66 Jan 17
storage in Vanguard data converter
Matrix, thin metal stencil -cutout, for elec74 Sept 26
tronic printer
Matrix, transistor, to supply sequential gates
in encoder of Lyman -alpha scientific earth
56 Feb 20
satellite
Matterhorn, Project, components developed to
75 Dec 19
control thermonuclear power
Mayer. discussion of ferromagnetic, variable
65 Sept 26
capacitance and electron beam types
MEASUREMENT
Measurement of moisture content of hygroscopic solids using nuclear magnetic reso51 Feb 28
nance analyzer
Measurement of noise in
systems
maser amplifier
66 Apr 25
Measurement of radar noise figures directly
49 Jan 31
and continuously by monitor gear
Measurement of small direct currents using
magnetic amplifiers
Measurement of specific
liquid -density gage for
gravity,
EAW98 Dec 19
portable
80 Dec 5
Measurement of temperature at absolute zero
CD84 Apr 25
Mechanical equipment for environmental testing
Mechanical
relay,
59 Mar 28
equivalent transistorized
145 Mar 14
relay for push-pull switch unit
Mechanical scanner, high resolution, for auto62 Apr 25
matic mall sorter
Mechanical vibration, Mr Force environmental
test procedures of electronic systems for 59 Mar 28
Mechanized wiring machines for high -volume
7a Oct 24
product of aasembnan
39
Mechanizing equipment assembly in electronics
industry
73 Oct 24
MEDICAL ELECTRONICS
Medical electronics, brain waveforms analyzed
by computer
68 July 18
Medical electronics, bubbles in blood during
transfusion controlled by acoustic detector
50 Mar 28
Medical electronics, contour plotter monitors
multiple -beam radiation
98 Dec 5
Medical electronics, detecting eye movement
while subject reads
36 Jan 31
Medical electronics, disk scanning system for
cytological measurements
62 Apr 25
Medical electronics feedback control system
regulates iron lung
EAW108 Oct 10
Medical
tector
electronics, foetal
heart beat de52 Apr 25
Medical electronics, foetal heart rate recorder
62 Apr 25
detects foetal distress
Medical electronics, photocells enable paraEAW99 Dec 19
plegics to type
Medical electronics, pulsating x-ray tube for
138 Mar 14
therapeutics
Medical electronics, pulsed x-rays may aid
EAW58 Jan 31
cancer fight
Medical electronics, pulses cure Russian headaches
Medical electronics,
radio
EAW88 Jan
sounding device
3
telemeters interval temperature and pressure
51 Jan 3
data from digestive tract
Medical electronics, remote X-ray observation
EAW52 Aug 29
by closed-circuit tv
Medical electronics, servo circuit controls arti73 Apr 11
ficial heart
Medical electronics, solid-state panel ampli84 Sept 12
fies X-rays
Medical electronics, transducer measures in62 Apr 25
tracardiac blood pressure
Medical electronics, transiistor unit monitors
82 Aug 15
blood pressure
Medical electronics, two -transistor amplifier
80 Nov 21
corrects heart block
Medical electronics, unit telemeters scalp voltEAW86 July 18
ages
Medical electronics, video microplanimeter de85 Oct 24
tects bone disease
100 Oct 10
Memory, end -fired, uses ferrite plates
linearizer magnetic -core transistorized. for data conveter used with Vanguard
66 Jan 17
program
Memory. magnetic analog, for Lyman -alpha
56 Feb 28
scientific earth satellite
CD136
Feb 14
Memory meter retains reading
Memory unit, for presenting continuous bearing in Doppler direction finding system...44 Jan 31
Merry-go-round feeds bobbins to coil winder
PT124 Apr 11
Merry-go-round steps up klystron tube output
PT110 May 9
Metal disks, ten, store 10 million units.EAW55 Aug 29
CD192 Mar 14
Metal film mica attenuators
Metal film microwave attenuator cards CD106 May 23
Metallic materials controlled or counted using
73 June 20
proximity transducer system
Metal parts, encased, located with magnetic 65 Aug 15
field pickup
Meteor bursts provide communications path 42 Aug 29
Memory,
METERS
Meter, count rate, for brain -wave analyzer 68 July 18
Meter, crystal impedance, for checking VHF
82 May 9
quartz crystals
99 Sept 12
Meter, phase, uses coincident slicer
Meter retains reading through use of memory
CD136 Feb 14
Meteorological studies using scientific earth
56 Feb 28
satellites to scan earth's albedo
device
Meteor propagation studies using low noise
52 Jan 31
uhf converter
66 Feb 28
Meter, go no-go, speeds resistance check
EAW78 Mar 28
Meters protected by diode bridge
Meters, tension, clip onto wire in winding
PT116 June 6
Metering circuit for nondispersion infrared
82 Dec 5
analyzer
Mica or bulb charge caused by electron tubes,
discussion of
90 Sept 12
Micrometer adjustments change cut and strip
PT113 Aug 15
setup
Micrometer, dynamic, for measuring displace59 Mar 28
ment of shake tables
EAW114 Sept 12
Micromicroammeter for satellites
Microphone, dynamic lovelier type for wireless
54 Jan 3
voice transmission
Microphone, barium titante transducer used as
68 June 6
Microphones, used to detect micrometeorite collision on Lyman -alpha scientific satellite 56 Feb 28
Microplanimeter, video, for detecting bone
85 Oct 24
disease
Microscope, tv flying -spot, detects bone disease
85 Oct 24
Microspace information storage system utilizing
72 Nov 7
electron microscope
MICROWAVE DEVICES
86 Dec 19
Microwave antenna, split reflector for
Microwave around -the -mast rotary joint. CD112 Nov 21
Missile design speeded by oomputer....EAW96 Dec 19
Missile environmental design criteria, Air
59 Mar 28
Force
Missile parts, new centrifuge for testing
EAW100 Oct 24
E&W90 May 23
Missile tracked by whip antennas
PT126 Sept 12
Mixer degasses potted resin
Mobile microwave relay system diplexs audio
84 June 20
and color video
Mobile transistor radio system provides 920
channels
Model -making
time
Microwave thickness gage measures electrical
constant of
thickness and dielectric
70 June 20
radomes
Microwave triodes, life -testing of using pulse
102 Sept 12
generator
Microwave wattmeter that does not absorb
CD108 Aug 1
MiCoerrwowave workers protected by power meter
EAW100 Oct 24
Midfrequency phase shift, measurement of..46 Aug 29
EAW110 Sept 12
Military gear housed in trailers
CD102 Aug 15
Miniature motor has simple stator
Mirror positioners, electronic rear-view, for
73 Nov 21
automobiles
EAW131 Feb 14
Missile antenna design
Missile balanced tested autonlatically....PT120 Nov 7
40
by
tape
96 Oct 10
controls
EAW106 Oct 24
PT200 Mar 14
used in
73 Oct 24
Models simply circuit planning
Modernizing machinery and tools
electronics industry
Modern methods of manufacturing transistors
CD110 Oct 24
Modulation methods, selection of for speech
56 Mar 28
communication
MODULATORS
Modulator, for encoder of Lyman -alpha scien56 Feb 28
tific earth satellite
Modulator, frequency, cover 25 to 75 kc range
EAW100 Aug 1
Modulator, light, used in airborne radar strip 80 Aug 1
map recorder
Modulator, matching transistor diodes for 75 Jan 17
Modulator, phase for miniature rate servo
69 Jan 3
system
Modulator, pulse, works into variable load
102 Sept 12
Modulators, low frequency, for automatic con82 Jan 3
trol systems
Modulator to simulate target fading in radar
82 June
target simulators
6
Moisture content of hygroscopic solids measured with nuclear magnetic resonance analyzer
51 Feb 28
PT122 Jan 17
Moldable boards for printing wiring
Monaural playing of stero disks using f -m
65 June 6
multiplexing
MONITOR DEVICES
Monitor circuit for continuously indicating
93 Oct 24
Geiger radiation detector
Monitor gear measures radar noise figures
directly and continuously
49 Jan 31
Monitor. multichannel f -m, quartz crystals for
stabilizing
81 Dec 19
Monitor, radar input, for SAGE, logical design of
76 Aug 15
Monitor. waveform, used with resolution chart
to aid Tv camera focusing
100 Feb 14
Motion picture camera frame -rate checker..8R Sept 12
CD102 Aug 15
Motor, miniature, simple stator for
Motor operates at 950 F
CD117 Dec 5
Motor. servo, driven directly transistorized am146 Mar 14
plifier in two speed -servo systems
Motor, synchronous clock, driven by transistor
chopper
64 May 23
Multichannel duplex operation using time compressed single-sideband system
52 July 4
Multichannel f -m monitor, quartz crystals
stabile
81 Dec 19
Multiple -beam radiation, contour plotter for
monitoring
98 Dec 5
Multiple -unit feedthrough capacitors....C1)98 June 20
Multiplexing, f -m, used to produce compatible
65 dune 6
stereo disk
MULTIPLIERS
Multiplier, analog voltage, for SAGE radar
input monitor
76 Aug 15
Multiplier circuit for range computer system
94 Sept 12
Multiplier phototube used in scanning device
of automatic mail sorter
62 Apr 25
Multiplier, transistorized Q-, for audio freqiietwies
79 May 9
Multiplier used In low noise uhf converter
for IGY propagation studies
52 Jan 31
Multitarget generator for jamming and interference simulator
MULTIVIBRATORS
Multivibrator, testable,
78 Dec 19
for flexible, reliable
decade counter
EAW104 Dec 5
Multivihrator, differential inverter circuit operated with transistors or tubes
158 Mar 14
Multivibrator, master free -running, for clock
reading circuit in automatic digital system
for billing telephone calls
96 Feb 14
Multivibrator, monostable, generate transfer
and reset gates controlling operation of
decade decimal counter
85 Tan 17
Multivibrator operates relay
EAW106 Dec 5
Multivibrator oscillator, symmetrical, for
photoflash
29 Aug 29
Multivibrator, nondifferential. improved version using transistors
158 Mar 14
Multivibrator, timing, for 49 -channel telemetry system used with Lyman -alpha scientific earth satellites
56 Feb 28
Multivibrators, biasedmonostable, used as electronic switches insynchroning circuits of
crt recorder for comparing transients
84 Jan 17
crystal oscillator supplies regulated carrier
New components may double radar range
CD193 Mar 14
Night reconnaisance, intensifier orithicon tube
for
Night vision unit uses starlight
CD98 July 18
EAW92 Sept 26
Nitrous oxide, used with infrared technique
to find leaks in auto suspension system.82 Dec
5
EAW96 July 18
Noise charts aid engineers
48 Aug 29
Noisefree enclosure openings, design of
Noise -temperature scale, for comparing maser
86 Apr 25
systems to other systems
NOMOGRAMS
Nomograms for planning performance of pulsed
120 Feb 14
radar system
Nomograph and chart for conversion of
grounded -base transistor parameters to
75 Mar 28
grounded -emitter form
Nomograph for calculated percent change
EAW102 Jan 3
Nomograph for calculating radio system para89 Sept 26
meters
Nomograph for computing signal strength in90 June 6
put to receiver
Nomograph, for designing capacitance -shortened quarters wavelength transmission line
94 Dec 19
resonator
Nomograph for designing transistor d -e to
78 Sept 26
a -c converters
72 July 4
Nomograph for determining radar power
Nomograph for determining transistor alpha
88 May 9
cutoff frequency
Nomograph for multicoupling tv antenna net86 May 23
works
EAW98 June 6
Nomograph, path attentuation
EAW108 Sept 12
Nomograph, Pi network
Nomograph, radar free -space noisejamming
83 June 20
susceptibility
Nomographs and chart for design stability into
122 Feb 14
transistor circuits
102 Apr 11
Nomograph, vertical antenna null
Nomograph, switch -time, for common -emitter
66 Apr 25
transistors
Nondispersion infrared analyzer for finding
82 Dec
leaks in auto suspension systems
5
Nonlinear resistors, measurement of....EAW60 Jan 31
Nuclear emulsion pellicle for balloon study of
76 Nov 7
cosmic radiation
Nuclear fusion, components for controlling 75 Dec 19
Nuclear radiation, effects of determined by
59 Mar 28
hot cell
Null -positioning detecting circuit, transistor,
80 Dec 5
for density gage
Number reader speeds paper work
EAW96 Jan 17
Numerals displayed by neon lamps in planes
CD56 Aug 29
O
Ohmic heating of deuterium gas by Stel75 Dee 19
'orator
PT97 Apr 25
Oil cleans contacts
Oil field surveys, gamma -ray detector for aid61 May 23
ing
Oil -well blasting, magnetic concentricity gage
65 Aug 15
for
Omnidirectional Geiger bounter for balloon
76 Nov 7
study of cosmic radiation
One etchant handles several metal plates
PT108 Sept 26
Open fuses detected by magnetic amplifier
EAW 88 July 18
Oppositely -phase noise generators to eliminate
CD104 Aug 15
noise
Optical analog system used in contour plotter
for monitoring multiple -beam radistion.98 Dec 5
Optical gearing indicates shaft angle. CD96 June 20
Optimeter, occurences-per-unit-time-meter uses
decimal system and stramsfer-storage circuit
88 Jan 17
to speed print readout
Organ, electronic, uses neon tone generators
36 Aug 29
Oscillation and air used to assemble small
parts
PT121 Aug
1
OSCILLATORS
Oscillator, aperiodic low frequency, to simulate random fading in radar target simulators
82 June 6
Oscillator, backward wave tube for swept frequency measurement
76 Jan 3
Oscillator, carrier L -C, for artificial heart 73 Apr 11
Oscillatory circuit, clock, for range computer
94
Sept 12
system
Oscillator circuit for four -transistor f -m tuner
72 Aug 1
Oscillator, crystal impedance meter, plug-in
crystal parameter bridge for
82 May 9
Oscillator, crystal, modified Pierce arrangement, for shf frequency standard
100 Apr 11
Oscillator, crystal transistorized,
variable frequencies
generates
118 Feb 14
wave voltage at precise amplitude
43 Jan 31
Oscillator drives, uses recording amplifier input
and output chopping relays in eye movement
detector
38 Jan 31
Oscillator, Colpitts transistor, maintains sine
Microwave attenuator cards made of metal
CD106 May 23
film
EAW92 June 6
Microwave component tester
Microwave interferometer for thermonuclear
measurements
75 Dec 19
Microwave lenses, artificial dielectrics for
CD100 Sept 26
Microwave relay system diplexes audio and
64 June 20
color video
cut
phase computing, transistorized
118 Feb 14
frequency for
Networks, pulse -forming, simplifying design of
94 Aug 1
Networks,
N
Name plates, sensitized metal is base for
PT66 Aug 29
Navigation, underwater with modern sonar system
56 Jan 3
Neon lamp logic gates play tic-tack-toe....68 June 20
Neon lamps in planes display numerals..CD56 Aug 29
Neon ring oscillators for switching operations
EAW108 Oct 10
Neon tone generators for electronic organ 36 Aug 29
Neon triode gives low -speed gate
EAW170 Mar 14
Nesistor, switching capabilities
52 Mar 28
NETWORKS
Network, bridged -T
netometer
filter,
used
in
mag152 Mar 14
Network designs. T and Pi, using lumped parameters
94 Jan 17
Network, regeneration, for ferrite -plate end fired memory
100 Oct 10
Networks, for measuring squareness ratio in
li-H tester used to evaluate memory core
parameters
76 Jan 17
feedback, patent is granted on
EAW108 Sept 12
OscillaMr for universal transistor tape write
Oscillator,
amplifier
Oscillator, f -m,
91 Oct 10
high -Q unbalanced crystal
filter for
155 Mar 14
Oscillator frequency change in tv receiver as
a function of sound level change
54 Apr 25
Oscillator frequency stability improved by sine wave stabilization coil
90 Sept 12
Oscillator, harmonic, used in electronic device
for determining cement setting time
88 Oct 10
Oscillator, in frequency standard or molecular
clock, ammonia masers for
66 Apr 25
Oscillator, bridge -T in transmitter of crevasse
detection system
63 Jan 17
Oscillator, keep -alive, for Geiger radiation
monitor
93 Oct 24
Oscillator, low -power, controls tv receiver remotely using line current
68 Aug 15
Oscillator, transistor low -distortion sine wave,
for blood pressure monitor
82 Aug
15
December 79, 1958 - ELECTRONICS engineering issue
Cr
Oscillator, low power, for generating monitor
pulse to measure radar noise figure
49 Jan 31
Oscillator, low-level voltage controlled, using
modified transistorized strain gage oscillator
40 Jan 31
Oscillators measure broadcast frequency
EAW108 Nov 21
Oscillator measures tube capacitance..EAW126 Feb 14
Oscillator, 5 -me, for primary frequency standard
80 Nov 7
Oscillator, modified blocking, for photoflash
converter
29 Aug 29
Oscillators, neon tone relaxation, for electronic
organ
36 Aug 29
Oscillator, overtone crystal, used in low noise
vhf converter for IGY propagation studies
52 Jan 31
Oscillator -phase modulator -multiplier chain for
range computer system
94 Sept 12
Oscillator reduces recorder stiction....EAVV110 Apr 11
Oscillator, saturable -core relaxation transistor,
used as d -c to a -c converter
78 Sept 26
Oscillators,
blocking, designing miniature
transformers for
78 Feb 28
Oscillators, blocking, standard circuit and
three Bureau of Standards preferred circuits
78 Feb 28
Oscillator, self-controlled, for 'VHF quartz
crystal tester
82 May
Oscillator, sidereal regenerative, for Jodrell
Bank radio telescope
70 June
Oscillators, shock -excited transistorized, for
generating characters on face of CRT
72 Jan
Oscillators, signal and quench frequency for
remote control receivers
74 Aug
Oscillator -stabilized
system
for
9
6
3
1
controlled -
frequency transistor transceiver
96 Oct 10
Oscillator, stable, for setting repetition rate
in pulse modulator
102 Sept 12
Oscillator, symmetrical multivibrator, for
29 Aug 29
photoflash
Oscillator, strain gage transistorized, for flight
40 Jan 31
testing aircraft and missiles
Oscillator, tone burst variable -frequency magnetically -coupled, used in encoder of Lyman 56 Feb 28
alpha scientific earth satellite
Oscillator, transistor, for ultrasonic transducer
68 June 6
Oscillator, transistor, identifies caller on party
line in automatic digital system for billing
96 Feb 14
telephone calls
Oscillator, transistorized crystal, for synchron64 May 23
ous clock driving circuit
Oscillator, transistorized, for foetal heart beat
52 Apr 25
detector
Oscillator, transistor power, used in trans102 Feb 14
mitter of intruder alarm
Oscillator,
tuned -plate
with
mechanically
driven sweep capacitor generates spectrum
of frequencies for ultrasonic thickness gage
29 Jan 31
Oscillator, twin -T feedback, for acoustic cavity
50 Mar 28
detector
Oscillator, variable audio, for nondispersion
82 Dec 5
infrared analyzer
Oscillator, variable frequency, for airborne
86 Aug 1
machine gun firing circuit
Packing case, peephole
Packaging increases semiconductor life
Padless printed wiring board
Panel meters, taut bands used on
Panel mounted vtvm
PT115 May 9
CD99 June 20
PT110 Aug 15
CD84 July 4
CD102 June 6
PT126 Jan 17
Panels hold taper Pins
Paper work sped with number reader..EAW96 Jan 17
Parabolic antenna follows the sun....EAW98 June 6
Paraboloidal reflectors, extension of split
86 Dec 19
reflector technique for
Parameters for calculating printed -circuit imEAW112 Dee 5
pedance
of
types
for
various
switching,
Parameters,
97 Dec 5
transistors
66 Apr 25
Paramagnetic materials, used in masers
Parameteric amplifier ups scatter range. EAW96 Nov 7
Paraplegics now able to type using photoEAW99 Dec 19
electric cell panel board
Parts for readout tube are stacked vertically
PT131 Oct 10
Parts, preassembled, for manufacturers using
CD120 Oct 10
point-to-point wiring methods
Parts, small, assembled using oscillation and
PT121 Aug 1
air
Patent issued on feedback oscillator..EAW108 Sept 12
EAW98 June 6
Path attenuation nomograph
Patter, wiring board, cut to size on film.PT62 Aug 29
Pdm/fm standard for guided missile telemetry
96 Oct 24
PT115 May 9
Peephole packing case
Peg board photos give permanent harness guide
PT62 Aug 29
Pen recorder, accessory transducer adds versaCD102 May 23
tility
PHASING CIRCUITS
Phase -selective gate rejects quadrature volt92 Dee 19
age components
Phase shifter range exceeds 180 degrees
EAW96 May 9
Phase shifter used in transistorized strain
40 Jan 31
gage oscillator
Phase shifter, X -band, without moving parts
56 July 4
Phase shifting 360 degrees, circuit for.EAW94 June 6
Phase splitter transistor circuit for quasi complementary symmetry amplifier
Phase -stability research, atmospheric,
96 Apr 11
shf
100 Apr 11
frequency standard for
Phase -measuring system for phase measure46 Aug 29
ment at all frequencies
Phase measured directly by coincident slicer
99 Sept 12
Phasing combinations of amplifiers with sepa77 Dec 5
rate output transformers
Phone calls for broadcast
EAW96 Nov 7
Phonocardigraph made by transistorized heart
beat detector
52 Apr 25
Phonograph,
for
home,
stereophonic
amplifier
77 Dec
5
Photo layout taping, applicator for
PT96 Apr 25
Photo transistor for loaded -diode counter system of calibrating missile testing camera 93 Feb 14
Photos of single frame on CRT are taken
using timer controlled shutter
83 Apr 11
ELECTRONICS engineering
Phototransistor, used in receiver of intruder
alarm
102 Feb 14
PHOTO CELLS
EAW88 May 23
Photocell measures raindrop size
Photocell, solid state, sees through haze...62 June 20
Photocell, solid state, sensing output with
high -input impedance d -c transistor amplifier
64 Feb 28
Photocells enable paraplegics to type..EAW99 Dec 19
Photocells used in electronic chopper..EAW90 May 23
Photoconductive aluminum drum used in electronic high-speed printer
74 Sept 26
Photoconductive effects of reproducible indium-antimonide detector cells
48 July 4
Photoconductive infrared detector
48 July 4
Photoconductive material used on solid-state
panel for X-ray amplification
84 Sept 12
Photoconductor, selenium, used in high-speed
electronic printer
74 Sept 26
Photoelectric sextant
EAW109 Nov 21
Photoelectromagnetic effects of reproducible
indium-antimonide detector cells
48 July 4
Photoflash transistor power converters
29 Aug 29
Photoformer solves sound barrier problems 78 May 23
Photographic system of information storage 72 Nov 7
Photographic technique finds stains
PT126 Nov 7
Photographing oscilloscope screens, brightness
compensation circuit for
EAW96 Dec 19
Photography, smear, for missile testing camera
uses loaded diode counter calibrator
93 Feb 14
Photolithography used to make transistors
PT142 Feb 14
Photoscopic disk, used in automatic language
translator
62 Apr 25
Phototube, multiplier, used in scanning device
of automatic mail sorter
62 Apr 25
Photovoltaic effects of reproducible indiumantimonide detector cells
48 July 4
Pi network nomograph
EAW108 Sept 12
PICKUPS
Pickup, electromagnetic, for three-dimensional
crt
81 May 23
Pickup, magnetic -field, locating encased metal
parts
65 Aug 15
Pickup, magnetic head, used with stairstep
integrator
41 Mar 28
Pickup, vibration, for shock testing machine
Pickups, self -generating,
engine analyzer
for
59 Mar 28
reciprocating
69 May 9
Picture contrast improved with mask...EAW76 Apr 25
Pigtail assemblies for parts, machine for producing
PT130 Oct 10
Pill -box line feed antenna, single -layer, split
reflector for
86 Dec 19
Pinboard programs data logger
T90 Mar 28
Pinch distortion, cancelling of in stereophonic
amplifiers
77 Dec 5
Plastic case reduces potting problem....CD112 Aug 1
Plastic gaging charts
PT97 Apr 25
Plastic molding machines for the electronics
industry
73 Oct 24
Plastic tube extends shafts of control parts
PT94 July 4
Plates connect ribbon cable to terminals.PT113 May 9
Playback amplifier, dual -channel, for mono aural and stereo
77 Dec 5
Plenum chamber, used with uhf f -m exciter In
long distance communication systems ....148 Mar 14
Plotter, automatic amplitude distribution
analyzer, determines noise wave forms from
missile radar systems
162 Mar 14
POTENTIOMETERS
Potentiometer, linear window -reading, used in
B-11 tester for measuring memory core parameters
76 Jan 17
Potentiometer, precision a -c
PT90 July 4
Potentiometer, self -balancing, for direct digital
pressure readout in analog comparator....47 Mar 28
Potentiometer, slidewire, with digital readout
CD1I5 Nov 21
Potentiometer, wire wound, new kit modifies
PT202 Mar 14
Potentiometers, cam -actuated linear, used to
simulate azemuth and elevation signals of
target in testing beam -rider missiles
32 Jan 31
Potentiometers get enhanced reliability by
being liquid filled
CD138 Feb 14
Potted resins degassed by mixer
Potting Problems reduced by
Power
meter
protects
PT126 Sept 12
plastic case
microwave
CD112 Aug 1
workers
EAW100 Oct 24
CD87 Apr 25
Power modulae, subminiature
Power supply, d -o full- and half -wave phase controlled, silicon controlled rectifier used as
52 Mar 28
POWER SUPPLIES
Power supply, d -o low -voltage, junction transistor improves smoothing of
95 Apr 11
Power supply for gamma -ray detector used to
aid oil field surveys
61 May 23
Power supply, transistor, for Vanguard rocket
telemeter transmission system
46 July 4
Power supply, transistor, with overload protection
Power, thermonuclear,
trolling
74 June 20
components for con75 Dee 19
Pi made into tv by new type tube....EAW90 Feb 20
PREAMPLIFIERS
Preamplifier, a -c for driving phase sensitive
demodulator in miniature rate servo sys-
tem
69 Jan 3
Preamplifier, auxiliary, for compatible stereo
disk playback
65 June 6
Preamplifier, beam -tube, for primary frequency
standard
80 Nov 7
Preamplifier, built-in microphone
PT118 Aug 1
Preamplifier for universal transistor tape read
amplifier
91 Oct 10
Preamplifier, low -impedance transistor.EAW78 Mar 28
Preamplifier matches input impedance..EAW81 Mar 28
Preamplifier, transistorized, for PA system
which adjusts to aircraft noise
106 Feb 14
Preamplifier, transistor, for pitch -axis servo
channel in automatic pilot system
69 Nov 7
Preamplifier, transistor, for reciprocating engine analyzer
68 May 9
issue - December 19,
1958
Preamplifier,
noise
Preamplifier,
has
transistor,
very
low
EAW92 July 18
transistors
EAW94 July 18
Preamplifier -oscillator, r -f, for nondispersion
82 Dec 5
infrared analyzer
tv
camera,
uses
PT118 Jan 17
Preassembled indicator decades
Preassembled parts for manufacturers using
CD120 Oct 10
Point-to-point wiring methods
PT90 July 4
Precision a -c potentiometer
Preformed contacts for printed wiring-CD193 Mar 14
Preorbit check given by ultrasonics....EAW78 Mar 28
Pressure data from wind tunnel printed out
86 Dec
by digital recorder
PRINTED CIRCUITS
Printed circuit impedance, parameters for
EAW112 Dec
calculating
Printed circuit impedances, matching of
EAW112 Dec
5
5
5
Printed circuits, etched vane -tuned inductance
coils and rejection traps reduce cost of 1-f
135 Mar 14
amplifiers in color tv
Printed circuits, funnel flange eyelets for
CD108 May 9
Printed circuits reduces size of transistor
analog -to -digital converter
90 Aug
1
system
69 Jan
3
Printed circuits used in electronic organ 36 Aug 29
Printed circuits used in miniature rate servo
Printed wire developed by degrease vapor
PT120 Nov 7
Printed wiring, advances in for component
73 Oct 24
production in electronics plants
Printer, electronic, converts pulse -code data
74 Sept 26
into alpha -numeric characters
Printer, electronic, used shaped -beam crt and
74 Sept 26
Xerographic process
Printing wiring, moldable boards for....PT122 Jan 17
Printed wiring, preformed contacts for CD193 Mar 14
CI)100 May 23
Probeless oscilloscope
Probes, sensing, for magnetometer used to
measure magnetic field strength In electronic
152 Mar 14
cyclotron
Process for producing low-cost encapsulated
CD124 Sept 12
silicon rectifiers
CD110 Aug 1
Prods damage tube sockets
Production controlled by infrared analyzer
EAW120 Oct 24
Production machinery for the electronics in73 Oct 24
dustry
Production machinery for varistors avoids
PT102 June 20
abrasives
Producting testing auto suspension systems,
82 Dec 5
nondispersion infrared analyzer for
Program generator for jamming and Interfer78 Dec 19
ence simulator
Programmer for sequencing operation of
go,
43 July 4
no-go gage
Programming speeded using new basic plug-in
C'D104 Sept 26
logic modules
Project Matterhorn, components developed to
75 Dec 19
control thermonuclear power
Proof of whiskey. determination of using tran80 Dec 5
sistorized density gage
Proximity warning system, radar, for auto73 Nov 21
mobiles
PULSE CIRCUITS
Pulse permeability measurements for magnetic
72 May 9
modulators
Pulse stretcher circuit for radar noise figure
49 Jan 31
monitoring system
EAW58 Jan 31
Pulsed X-ray may aid cancer fight
59 June 20
Pulsar for ultrasonic flaw detector
Pulses cure Russian headaches
EAW88 Jan 3
Pulses. ultrasonic, detect reactor -slug flaws
59 June 20
Pulsing X-rays using roof -top -target tube.138 Mar 14
Pimping, magnetic, using ion cyclotron
75 Dec 19
resonance
Punch press dies saved by electronies.EAW17S Mar 14
Punched cards program function generator
PT142 Feb 14
Quadrature voltage components rejected by
92 Dec 19
phase selective gate
Quality control of transistor, new tester for
EAW104 Oct 24
Quality control unit uses X-ray tv....EAW107 Nov 21
Quarter wavelength transmission line resonators, capacitance -shortened, design of with
94 Dec 19
nomograph
Quartz crystals stabilize multichannel f -m
81 Dec 19
monitor
Quasicomplementary symmetry transistor am96 Apr 11
plifier for high -power output
R
Radar, auto speed checking, uses transistors
EAW106 Aug
1
Radar blind spots, staggered rep rate for filling
82 Nov 21
Radar countermeasures, simulator for testing
62 Apr 25
effectiveness of
EAW74 July 4
Radar development aids defense
Itadar echoes micicked by atmospheric angels
140 Mar 14
Radar, electronic simulator gives counter78 Dec 19
measures targets for
Radar equipment, high -power ceramic thyCD114 Dec 5
ratrons for
Radar, marine, rectangular slotted wave 94 Dec 5
guide array for
Radar, marine, tv receivers substitute for
EAW92 Jan 3
82 June 6
Radar target simulator
Radiant energy power circuit for transistor
63 May
receiver
Radiation from solar storm detected by bal-
9
loon -carried instruments and telemetered to
EAW96 Dec 19
earth
Radiation shopper system for nondisper82 Dec 5
sion infrared analyzer
Radiation, multiple -beam, contour plotter
98 Deo 5
for monitoring
Radioactive gas tests components
PT70 Jan 31
Radio direction finding antenna system for
tracking satellites
81 Oct 10
Radio, hermetically sealed mobile gear..011117' Dec 6
Radio direction finding gets push
EAW84 Feb 28
41
Radio, f -m transmitter and receiver for wireless microphone public address system....54 Jan 3
Radio has fan -type design
CD102 Sept 28
Radioisotopes
in
oil producing
formation,
gamma -ray detector for tracing
61 May 23
Radioisotope source for solid-state photocell
62 June 20
Radiolege, contour plotter monitors multiple beam radiation
98 Deo 5
Radiometer studies atmosphere
EAW92 Aug 15
Radome made of polystyrene is strong and
light
PT101 Feb 28
Radomes produced by ceramic sprays
PT113 Jan 3
Radome thickness gage, microwave, measures
electrical thickness and dielectric constant
70 June 20
Rain, Air Force environmental test procedures
59 Mar 28
of electronic systems for
Raindrop size measured by photocell...EAW88 May 23
Random -target for jamming and interfer78 Dec 19
ence simulator
Range of phase shifter exceeds 180 degrees
EAW96 May 9
EAW94 Sept 26
Rate -of -rise control for filaments
Rating systems, three presently being used for
CD104 June
tubes
Ratiometers, backward wave sweep oscillator
76 Jan
and modulators for
Reactance varied by transistor circult..EAW76 July
Reaction, thermonuclear.
controlling
components
3
4
for
75 Dec 19
flaws
detected
by
ultrasonic
59 June 20
Readou-t circuits for digital recorder used
86 Dec
to print out wind -tunnel data
Readout tube's parts are stacked vertically
5
PT131 Oct 10
crystal multichannel
81 Dec 19
Receiver, audio for crevasse detection system
63 Jan 17
Receiver, aural, used in relay system &Menne
Rebroadcasting, quartz
f -m monitor for
64 June 20
audio and color video
control circuit for ultrasonic tv
68 June 6
channel selector
Receiver for an airborne tv system used in
66 May 23
military reconnaissance
Receiver for Doppler direction finding system
44 Jan 31
using circular antenna array
Receiver, f -m fixed with low power consumption for wireless microphone PA system 54 Jan 3
Receiver for f -m light -pulse transmisison sys76 June 20
tem
Receivers for ionospheric pulse experiment 71 Jan 17
Receiver, shore -based, for undersea telemeter
84 Oct 10
system
Receiver system for interterometer used to
81 Oct 10
track satellites
Receiver, transistor, powered by electromag63 May 9
netic radiation from distant source
Receiver, transistor, uses reflex circuitry to cut
66 Jan 8
costs
Receiver, tv, tuned automatically with sound
54 Apr 25
signal
Receiver, tv, for ultrasonic tones select channels
68 June 6
remotely
Receiver, visual, used in relay system diplexing
64 June 20
audio and color video
Reconnaissance, military, airborne tv system
66 May 23
for
Reconnaisance photo data recorded electronicEAW80 Apr 25
ally
Recorder. abacus test, for keeping track of
PT133 Sept 12
tube faults
84 Jan 17
Recorder wt. for comparing transients
Rectangular slotted waveguide array for
94 Dec 5
marine radar
Rectifier, bridge, used with transistor ripple
92 Apr 11
filter
Rectifier, expandable, for high voltage..CD188 Mar 14
Rectifier, full -wave, for phase -selective gate
92 Dec 19
used to reject voltage quadratures
Rectifier -filter for universal transistor tape
91 Oct 10
write amplifier
Rectifier, phase -sensitive, for Jodrell Bank
70 June 6
radio telescope
Rectifier, silicon controlled, replaces relays,
thyratrons, magnetic amplifiers, power tran12 Mar 28
sistors, and conventional rectifiers
Rectifiers, low-cost encapsulated silicon, procCD124 Sept 12
ess for producing
Reference diodes matched by computer PT120 Nov 21
Reflector, split, for microwave antennas....86 Dec 19
Refrigerant in coils dries vacuum coater.13T106 Dec 19
Register, information, for Vanguard data
68 Jan 17
converter
Receiver,
Regulated supply offsets line changes EAW100 Jan 3
Regulating low -voltage supplies with thyraFAW88 June 20
trons
EAW90 June 20
Regulators, dynamic test for
Regulator, series triodes, stabilizes CockroftWalton generator
76 June 20
Regulators, transistor voltage, for automobiles
73 Nov 23
152 Mar 14
Regulator, voltage, for magnetometer
Register, output transistor, for simultaneous
computer
80 July 18
Regulator, voltage, for Vanguard rocket telemeter transmission system
46 July 4
RELAYS
Relativity theory supported by maser studies
EAW104 Dec 5
Relay operated by multivibrator
EAWI06 Dec 5
Relay, rapid, used in proximity transducer
system
73 June 20
Relay servo system size reduce using transistors
73 Aug 15
Relays replaced by semiconductor switches 52 Mar 28
Relay, static, is actuated in three microseconds
CD100 Sept 26
Removable handles for computer circuit board
PT104 Jan 3
Report on ceramic receiving tubes
CD101 July 18
Report on status of transistors after ten years
of development
CD184 Mar 14
Resin purifies water for washing crystals
PT128 Apr 11
Resistance, digital recorder for printing out
measurements of
88 Dec
5
Resistance soldering of hollow -pin connectors
PT122 Oct 24
Resistor for automatic assembly
CD100 May 23
Resistors, epoxy shells simplify potting of
PT72 Jan 31
42
r -f
generator for testing thermonuclear con-
trol
R -f
sion
components
oscillator -preamplifier
infrared analyzer
75 Deo 19
nondisper82 Dec 5
for
It -f radiation used to power special transistor
63 May 9
circuits
Ribbon cable connected to terminals by,
PT113 May 9
plates
unijunction
89 Deo 19
Ringing circuits for forming characters on face
72 Jan 3
of crt
River flow measured with radioactive gold
EAW112 Jan 17
counter
transistors
Ring
using
bistable
Road scanner, closed-circuit tv rear-view for
73 Nov 21
automobiles
S
6
Reactors. atomics, transistor circuits for pro74 July 18
tection of
Reactor -slug
pulses
quarter
capacitance -shortened
Resonators,
wavelength transmission line, design of
94 Dec 19
with nomograph
Reverse -current tester speeds diode checks
EAW88 Jan 3
CD60 Aug 29
Reverse -twist cable
R -f carrier and modulation standards for
96 Oct 24
guided missile telemetry
Safety design for automatic pilot systems. 69 Nov 7
SAGE radar input monitor, logical design
76 Aug 15
of
Salt spray, Air Force environmental test
59 Mar 28
procedure of electronic systems for
PTI00 Feb 28
Salvaging color masks
Sand and dust, Air Force environmental
test procedure of electronic systems for..59 Mar 28
SATELLITES
Satellite assembly guided by composite cirPT92 Apr 25
cuit laycount
Satellites, micromicroammeters for..EAW114 Sept 12
Saturable transformers used in digital amplifiers
S -band waveform
counter-measures
EAW74 July 4
simulator for generating
78 Dec 19
targets
Scales and dials are self-illuminating-CD61 Aug 29
Scalp voltages, unit for telemetering..EAW86 July 18
Scatter range increased with parameterlo
EAW96 Nov 7
amplifier
Schematics, machine for composing....PT122 Dec 5
Scope, camera and tv test fast transistors
PT118 Aug 1
Screwdriver head spreads to hold screw..PT132 Apr 11
Screw held by spread -head type screwPT132 Apr 11
driver
Sectoral horn, design of for rectangular
94 Dec 5
slotted waveguide array
Selective detector used in nondispersion infrared analyzer
82 Dec 5
Selective calling tested for aircraft applications
EAW117 Oct 10
Self -illuminating dials and scales
CD61 Aug 29
SEMICONDUCTORS
Semiconductor Hall -effect circulator
CD118 Oct 10
Semiconductor life increased by proper packaging
CD99 June 20
Semiconductor manufacture, modern methods
of
CD110 Oct 24
Semiconductors cool and control density gage
80 Dec 5
Semiconductors materials,
servo -controlled
spark machine for working
90 Oct 24
Semiconductors provide analog voltage source
EAW96 Aug 15
Semiconductors, quick look at switching
capabilities
52 Mar 28
for nondispersion infrared
analyzer
82 Dec 5
Sensitized metal is base for name plates
PT68 Aug 29
Servo circuit controls artificial heart
73 Apr 11
Servo components, turrent mounting for
CD108 Aug 11
Setting time for cement determined electronically
188 Oct 10
Servo -amplifier
Several metal plates handled by one etchant
PT108 Sept 26
Shadow box for checking tube structure alignment
PT128 Nov 7
Shaft angles indicated by optical gearing
CD96 June 20
Shearing machine is small, speed and has
versatile table
PT120 June 6
Shock -altitude criteria, Air Force, for designing aircraft and missiles
59 Mar 28
Shock tester for testing missile and aircraft
components
59 Mar 28
Siowk tests fail to affect transistor fabrication
CD84 Apr 25
Short and breakdown tester
EAW108 Apr 11
Shot and blast counter uses strobotron.EAW94 Aug 15
SIMULATORS
Simulator circuit for testing ort character
generator
72 Jan 3
Simulator, electronic, gives countermeasures
targets
78 Dec 19
Simulator for propeller, jet and rocket driven
aircraft to test effectiveness of radar
countermeasures
62 Apr 25
Simulator, machine gun for testing firing circuit
86 Aug 1
Simulator, radar target
82 June 6
Simulators, environmental, for component testing
59 Mar 28
Simulator, target, for testing beam -rider missiles
32 Jan 31
antenna,
86 Dec 19
EAW98 Sept 26
Sky Path display for Pilots
Skyhook balloon, solar disturbances picked up
by instruments are telemetered from.EAW96 Dec 19
Slicer, coincident, measures phase directly -99 Sept 12
Single -layer pill -boo line
split reflector for
feed
Slidewire potentiometer with digital readout
CD115 Nov 21
Slimmer crt permits tandem tv cabinet design
PT102 June 20
Slotted waveguide array for marine radar.94 Dec 5
Smithchart to solve problems in uhf impedance matching
102 Dec 5
Solar disturbances picked up by instruments
are telemetered from balloon
EAW96 Dec 19
SOLID STATE DEVICES
Solid-state maser, relationship to the mavar
65 Sept 26
Solid-state switch uses dielectric breakdown
CD1OR Aug
1
52 Mar 28
Solid-state thyratron switches kilowatts
Sonar systems using cylindrical transducers
56 Jan 3
and electronic scanning
CD106 May 9
Smallest molded mica capacitor
Small speedy shearing machine has versatile
PT120 June 6
table
Soldering gun uses chassis resistance....PT106 Jan 3
PT68 Jan 31
Solderless multi -lead connector
Solder pumps used on dip solder machine
PTIO8 Jan 3
Solid-state light practical for digital display
CD86 Mar 28
Sonometer for determining Young's modulus of
59 Mar 28
elasticity
Sorting magnetic cores using integrator -ampli110
Feb 14
fier
Sound -to -picture ratio of tv receivers controlled by automatic fine tuning system 54 Apr 25
portable
measurements,
gravity
Specific
80 Dec 5
liquid -density gage for
Sorter, automatic mail, for letters addressed
62 Apr 25
by typewriters or printing devices
Spacing jigs hold capacitors for ladder netPT104 Jan 3
works
Spark machining produces magnetron CD112 Oct 24
90 Oct 24
Spark machine tool has servo control
71 May 23
Speech amplitude control, automatic
Speech communication, selection of modula56 Mar 28
tion methods for
Speed checking radars use transistors.EAW106 Aug 1
CD88 Apr 25
Spin testing electronic components
EAW106 Apr 11
Spiral yogi offers higher gains
86 Dec 19
Split reflector for microwave antennas
Square -wave generator for digital recorder
86 Dec 5
used to print out wind -tunnel data
Squelch circuit mutes magnetic tape echoes
66 May 9
Ssb, comparison with a -m, f -m and dsbsc
56 Mar 28
for voice communication
Stabilized amplifier for instrument used to
100 Dec 5
display transistor beta falloff
Stabilizing multichannel f -m monitor, quartz
81 Dec 19
crystals used to
Staggered rep rate fills radar blind spots 82 Nov 21
Stains
found
using
photographic
method
PT126 Nov
7
Starlight used for night vision unit...EAW92 Sept 26
Static relay is actuated in three microseconds
CD100 Sept 26
Steel, cube -oriented, magnetizes more easily
rAwios Jan 17
Steel production controlled by punched cards
EAW170 Mar 19
Stellarators, characteristics of. for control75 Dec 19
ling thermonuclear Dower
for
crystal
twister
-bender
Stereo, low-cost
CD102 Sept 26
Stereophonic amplifier for home phonographs
77 Dec 5
84 Sept 26
Stop-go scanning saves spectrum space
EAW104 Dec 5
Strain gages monitor wing stress
EAW109 Oct 24
Stratosphere test chamber
Stress, thermal, environmental test chambers
59 Mar 28
Stretch cable, four -conductor, for high Inertial
CD100 Deo 19
loads
Stretcher circuit, pulse, for radar noise figure
49 Jan 31
monitoring system
EAW84 Feb 28
Strip mill controlled by X-rays
Strobotron used in shot and blast counter
EAW94 Aug 15
Strong, light radome is made of polystyrene
Subassembly
fastener
has
no
loose
PT101 Feb 28
parts
PT127 Apr 11
CD87 Apr 25
Subminiature power module
Superconducting film connect by lead power
PT92 July
4
SWITCHING CIRCUITS
Switch circuit equivalent of loaded -diode
counter used to calibrate missile testing
93 Feb 14
camera
Switch circuits, orbital, transistorized for
interchanging Cyclops cores in Lyman -alpha
56 Feb 28
scientific earth satellite
Switch circuits, transistorized, for producing
72 Jan 3
characters on crt
Switch, electronic delay, used in synchronizing
circuit of oath recorder for comparing
84 Jan 17
transients
Switch, two-way electronics expanded to multi way unit by adding input selector cir81 Jan 17
cuits
Switches, a -c and d -c, static, silicon con52 Mar 28
trolled rectifiers used as
Switches, high-speed transistor, used in Van86 Jan 17
guard data converted
Switches, synchronous, for fast -response magnetic servo amplifier used to drive gyro
114 Feb 14
indicator
97 Dec 5
Switches, transistor, design of
Switches. triggered gap for low -voltage con86 Apr 11
trol of high current
Switching circuit using Zener diodes, for
direct drive amplifier used in two -speed
146 Mar 14
servo system
Switching circuits, telephone, tied into automatic digital system for billing telephone
calls
96 Feb 14
Switching elements, transistors or tubes, in
158 Mar 14
differential multi -vibrator inverter
Switching kilowatts using solid-state thyra-
52 Mar 28
linear blend, used in Doppler
44 Jan 31
direction finding system
Switching, multivibrator-controlled relay for
fast
EAW106 Dec 5
Switching parameters for various types of
transistors
97 Dec 5
Switching unit, push-pull, using transistor
relay
145 Mar 14
Synchronizer, stroboscopic, for observing motion of shake tables
59 Mar 28
Synchronizing circuit for crt recorder used
to compare transients
84 Jan 17
Synchronizing link uses self -setting gate circuit
in performing ionospheric pulse experiments
71 Jan 17
Synchro shafts accurately adjusted
CD100 June 20
Synchro stator, machine for automatically
winding
PT90 Mar 28
Synchros, technique for making more accurate
design of
CD102 Dee 19
Sync -separator circuit for receiver of stop-go
scanning system
84 Sent 26
trons
Switching,
December 19, 1958 - ELECTRONICS engineering issue
System reduces tv bandwidth
Transducer, crystal, used in acoustic cavity
50 Mar 28
film break detector
EAW106 Apr 11
Transducer drive chain for light modulator 80 Aug 1
Transducer, electromagnetic, for three-dimen71 May 27
sional crt
Transducers, electrostrictive barium titanate,
58 June 20
for ultrasonic flaw detector
Transducer, ferrite -coated fiber disk, converts pressure, velocity and rate of angular
41 Mar 28
motion into electrical signals
Transducer for measuring intracardiac blood
62 Apr 25
pressure
Transducer for measuring Lyman -alpha radia56 Feb 28
tion in scientific earth satellite
Transducer for measuring micrometeorite collisions in Lyman -alpha scientific earth
56 Feb 23
satellite
Transducer for measuring temperature in
56 Feb 28
Lyman -alpha scientific earth satellite
Transducer, magnetostrictive, with double effi0.13114 Nov 7
ciency
Transducer, proximity, using rapid relay....73 June 20
T
Tandem tv cabinet using slimmer crt...PT102 June 2n
Tape controls cut model -making time.. EAW106 Oot 24
Tape, foam adhesive
PT127 Jan 17
Tape -programmed drill press positioning table
PT114 Aug 15
stabilized
81 Dec 19
PT126 Jan 17
generating
EAW115 Sept 12
electronic simula78 Dec 19
CD84 July 4
Tape recording, quartz crystal
multichannel f -m monitor for
Taper -pins are held by panels
Tape stop signal, circuit for
Targets, countermeasures,
tor for generating
Taut band panel meters
Technical Highlights of 1958 WESCON show
72 Nov 7
Technique for finding tube resonance..EAW90 May 9
Telecommunications networks, electronic highspeed printer for
74 Sept 26
Transducer, Quartz crystal, for generating
sweep frequencies for measuring thickness
29 Jane 31
ultrasonically
Transducers for reciprocating engine ana68 May 9
lyzer
TELEMETERING
Telemetering data from scientific earth satel-
lites
56 Feb 28
Telemetering, data from Vanguard satellite
Transducers for undersea telemeter system...84 Oct 10
Transducer, strain gage monitors wing stress
converted by linearizer magnetic core memory
66 Jan 17
Telemetering solar disturbances picked up by
instruments in a balloon
EAW96 Dec 19
Telemetering system, f-m/f-m, for balloon
study of cosmic radiation
76 Nov 7
Telemeter system relays undersea ordnance
data
84 Oct 10
Telemeter transmitter for Vanguard rocket 46 July 4
Telemetry decoding system for Lyman -alpha
56 Feb 28
scientific earth satellites
Telemetry keyer, airborne, ruggedized with
81 Sept 12
transistors
96 Oct 24
Telemetry standards for guided missiles
EAVV104 Dec
molding encapsulates tube leads
PT68 Jan 31
165 Mar 14
Transformer, double -tuned, design of
Transformer epoxy conducts heat
CD102 May 9
Transformer, miniature, design for blocking
78 Feb 28
oscillators
Transformer ratio arm bridge has automatic
dial
CD100 Dec 19
Transient comparison using crt recorder
84 Jan 17
Transistor circuits control portable liquid density gage
80 Dec
Transistor circuits powered by radio waves..63 May 9
Transistor circuits used to protect atomic reactors
73 July 18
EAW76 July 4
Transistor circuit varies reactance
Transistor, diode cuts cutoff -current drift of
83 July 18
Transistor drives clock
FAW86 Jan 3
Transistor etching cycle automated by Jet
PT98 Feb 28
spray
Transistor fabrication defies all shock tests
CD84 Apr 25
Transistor, flexible and reliable decade
counter uses
EAW104 Dec
Transistorized logic circuits
PT98 Feb 28
Transistorized tachometer for auto
EAW92 Aug 15
Transistorized trigger and delay generators
EAW96 Jan 17
Transfer
Telephone call billing using automatic digital
96 Feb 14
system
Telescope, radio, sees 2 billion light years..70 June 6
Temperature -altitude, Air Force environmental
test procedures of electronic systems for 59 Mar 28
EAW81 Mar 28
Temperature controller, transistor
Temperature controls, automatic electronic, for
73 Nov 21
automobiles
Temperature, high and low, Air Force en-
vironmental test procedures of electronics
59 Mar 28
systems for
Temperature measurements at absolute zero
CD84 Apr 25
Temperature -shock criteria, Air Force, for de59 Mar 28
signing aircraft and missiles
Temperature -stable equipment cabinets..CD88 July 4
EAW86 June 20
Temperature tests, close tolerance
Transistor oscillators, graphical design of..90 Dec
Transistor portable two-way radio designed
like fan
CD102 Sept
Temperature, thermonuclear. Stetlarator tor
75 Dec 19
heating deuterium gas to
Ten million units stored on ten metal disks
EAW55 Aug 29
TESTERS
Transistor, Dower, technique for boosting efficiency of
86 Nov
Transistor preamplifier has very low noise
EAW92 July
Tester, fatique, for environmental testing...59 Mar 28
EAW92 June 6
Tester for microwave components
Tester, general purpose, automatic range se84 Aug 1
lection for
for
video
components
EAW108 Apr 11
Tester, short and breakdown
PT120 Oct 24
Tester sorts capacitor plates
EAW113 Sept 12
Tester, tire -roundness
59 June 20
Tester, ultrasonic flaw
Testing, automatic, of missile balance...PT120 Nov 7
Test instrument, watchmakers, gives precise84 Dec 19
time base
Test procedures, environmental, Air Force, for
59 Mar 28
designing electronic systems
Testing auto suspension system using nondis82 Dec 5
persion infrared analyzer
Testing unijunction transistor bistable circuits
89 Dec 19
using oscilloscope
Tests of cable impedance
made quickly
EAW86 Feb 28
Therapy. radiation, contour plotter monitors
98 Dec 5
multiple -beam radiation for
Thermal stress, environmental test chambers
59 Mar 28
Thermistors, used in high -power output series
96 Apr 11
amplifier
Thermistor, used in gamma -ray detector 61 May 23
Thermoelectric cooler, semiconductor. for
80 Dec 5
density gage
Thermoelements, semiconductor, cool and con80 Dec 5
trol density gage
Thermometer, radio, fits in penguin egg..
EAW86 Jan 3
Thermonuclear power, components for con75 Dec 19
trolling
CD104 June 6
Three -tube rating systems
CD114 Aug 1
Thumper ups tube reliability
THYRATRONS
Thyratron efficiency, ergmeter measures...79 June 6
FAW88 June 20
Thyratron regulates supply
Thyratron, solid-state, for switching kilo52 Mar 20
watts
CD114 Dee 5
Thyratrons, high -power ceramic
Thyratrons, replaced by semiconductor switches
52 Mar 28
TIMERS
Timer controls density and contrast of photo108 Feb 14
graphic prints
Timer, heat program, controls weld energy 76 June 6
Timer for shuttering crt for single frame
photos
83 Apr 11
84 Dec 19
TRANSDUCERS
Transducer, barium titanate, used as micro68 June
phone
Transducer beam pattern for mode sonar
56 Jan
systems
Transducer, core rod pickup loop for B -H
tester used to measure memory core parameters
ELECTRONICS engineering
18
-band f -m, used in
diplexing audio and color
64 June 25
Transmitter deflection and video generator
circuits for stop-go scanning system
84 Sept 20
Transmitter, f -m for wireless microphone
Public address system
54 Jan 7
Transmitter for airborne tv system used in
military reconnaissance
66 May 27
relay
Tester shock for testing missile and aircraft
59 Mar 28
Timer, watch, with precise time base
21
Transmitter,
checking tubes
6
3
76 Jan 17
Tube
ea patitanee
system
Transmitter, for endoradiosonde
51 Jan
Transmitter, for energizing power electrodesin
crevasse detection system
63 Jan 17
Transmitter for intruder alarm uses transistorized Dower oscillator, tungsten lamp,
102 Feb 14
and indred filter
Transmitter, for ionospheric pulse experiments
71 Jan 17
Transmitter for stop-go scanning system
84 Sept 26
Transmitter for ultrasonic instrumentation
32 Aug 29
system
Transmitter frequency control for mobile trans96 Oct 10
sistor radio system
Transmitter monitor for relay system diplexing
64 June 20
audio and color video
Transmitters, weather. are air dropperl.EAW96 Aug 1
Transmitter, telemeter, for Vanguard rocket
46 July 4
Transmitter, transistor, for undersea telemeter
measured
by
oscillator
EAW126 Feb 14
TV
Tv bandwidth, system for reducing....EAW106 Apr 11
Tv, camera and scope test fast transistors
PT118 Aug
1
Tv camera focusing helped by resolution chart
100 Feb 14
Tv camera preamplifier uses transistors.EAW94 July 18
68 June 6
Tv channels selected by ultrasonic tones
Tv, closed-circuit, in rear-view road scanner
73 Nov 21
for automobile
closed circuit, remote observations of
EAW52 Aug 29
X-rays using
Tv, color, cost reduced by using etched design
135 Mar 14
techniques in making 1-f amplifiers
Tv flying-spOt microscope used to detect bone
85 Oct 24
disease
Tv
Tv, highlight equalizer sharpens tv pictures 72 Jan 17
tubes
Tv link, British uses travelling waveEAW96
July 18
Tv monitor or receiver, pulse -cross modified
54Feb 28
to check station sync generator
EAW182 Mar14
Tv monitor used to control traffic
Tv picture improved with bifilar traps EAW100 Nov 21
Tv picture tube and set styling improved
CD102 May
Uhf impedance matching, Smith charts for
solving
problems
102 Dec
of
9
5
Uhf transmitter to guard fire trucks..EAW180 Mar 14
Ultrasonic cell for light modulator used in
80 Aug 1
airborne strip -map recorder
ULTRASONICS
Ultrasonic gage of portable resonance type
29 Jan 31
measures thickness
EAW78 Mar 28
Ultrasonic gives preorbit check
Ultrasonic instrumentation system tests under32 Aug 29
sea propagation
Ultrasonic "jack hammer" drill rotated by
PT116 Jan 17
shaped waveform
73 Nov 21
Ultrasonic key opens automobile doors
Ultrasonic machines for electronic industry 73 Oct 24
Ultrasonic pulses detect reactor -slug flaws -59 June 20
68 June 6
Ultrasonic tones select tv channels
Ultrasonic transducer to scan relief map for
82 June
radar target simulation
6
V
5
26
TRANSMITTERS
in
76 May 9
Tester, package, to environmentally test guid59 Mar 28
ance components
FAW92 Sept 26
Tester predicts transistor failures
Tester, high-speed,
groups
5
Tubes, single element counter, for drawee
circuit in automatic digital system for billing
96 Feb 14
telephone calls
Tubes, unusual effects in cause circuit troubles
90 Sept 12
Tures without heaters become smaller...CD88 Mar 28
Vacuum coater dried by refrigerant in coils
PT106 Dec 19
Vacuum metallizing, advance in for component
73 Oct 24
production in electronics plants
Vane -tuned inductance coils, etched to reduce
135 Mar 14
cost of 1-f amplifier in color tv
Vanguard rocket, telemeter transmitter for..46 July 4
Vanguard satellite, cyclops cores simplify cir56 Feb 28
cuits for
Variable audio oscillator for nondispersion
82 Dec 5
infrared analyzer
Variable toroid used to obtain exact induct-
CD102 June 6
ance
Varicap, a voltage -sensitive variable capacitor
CD97 Feb 28
Varistor production machinery avoids abrasives
PT102 June 20
Varistors, silicon carbide, copper -sprayed forms
PTIO8 July 18
contact surfaces of
Vehicular communications, military, controlled -frequency transistor transceiver for
96 Oct 10
VTVM
84 Aug
Vtvm, automatic range selector for
79 June
Vtvm, bridge, for ergmeter
Vtvm, d -c amplifier with expanded input
87 June
voltage range for
CD102 June
Vtvm, panel mounted
1
6
6
6
VU recorder has standard response... .EAW78 Apr 25
CD114 Nov 21
84 Oct 10
system
Transmitter, ultrasonic, for remote control
68 June 6
tv channel selector
Transmitter, visual, wide -band f -m, using re64 June 20
peller-voltage modulation
Waffle -iron waveguide filter
TRIGGER CIRCUITS
Wattmeter, microwave, that does not absorb
CD108 Aug 1
power
Waveform monitor used with resolution chart
100 Feb 14
to aid Tv camera focusing
Waveform rotates ultrasonic "jack hammer"
PTI16 Jan 17
drill
Trigger, low -voltage, for controlling high cur86 Apr 11
rents
Trigger selector for moving target indicator
system
82 Nov 21
Trip system for protecting atomic reactors 73 July 18
Tropospheric scatter propagation studies using
52 Jan II
low noise uhf converter
TUBES
Tube, beam -switching for binary word generator used to test and evaluate digital sys71 Feb 28
tems
Tube, beam -switching for divider circuits in
celestial and solar time -of -events indicator
74 Feb 28
Tube cage assembly machine, electronic.PT118 Nov 21
138 Mar 14
Tube, cross -target pulsating x-ray
CD98 July 18
Tube envelope is box -shaped
Tube fault of fundamental nature corrected
Tube fins offset calefaction
CD114 Apr 11
CD102 Aug 15
Tube leads encapsulated by transfer molding
PT68 Jan 31
EAW90 Feb 28
Tube makes tv out of ppi
Warbler, gated neon, for Conelrad alarm sys74 May 23
tem
Warning systems, proximity radar and brake
73 Nov 21
light, for automobiles
Warning -tone, carrier and program sequencing
74 May 27
In Conelrad alarm system
84 Dec 19
Watch timer with Precise time base
WAVEGUIDES
Waveguide array, slotted, for marine radar..94 Dec 5
Waveguide coils make compact delay lines...85 Oct 24
CD114 Nov 21
Waveguide filter, waffle -iron design
Waveguide junctions, transfer characteristics
measurement of using backward wave tube
76 Jan 3
sweep oscillator
Waveguide ports,
reflection coefficient
simulator for generating
78 Dee 19
in high-speed electronic
74 Sept 26
printer
X-ray amplification, solid-state panel for 84 Sept 12
N -band waveform
counter measures targets
Tube resonance, technique for finding EAW90 May 9
CD110 Aug 1
Tube sockets damaged by prods
Tube tells time
CD86 Mar 28
Tube tester, multiple, for types 6112, 5840.
Xerography,
Tube thumper ups reliability
Teel, spiral, offers higher gains
5718, 6189/12AU7WA, 5670WA, 6101/616WA
76 May 9
and 5654/6A105/6096
CD114 Aug 1
issue - December 19, 1958
and
transmission measurement using backward
78 Jan 3
wave tube sweep oscillator
Waveguides and lossless transmission lines,
104 Apr 11
two-sided matching design
Waveguides, internal dimensions of given by
PT196 Mar 14
vertical X-rays
Waveguides, magnesium, assembled using dip
rills Jan 17
brazing technique
used
EAW106 Apr 11
43
Carlson, A. W., Ring Counter Has
Increased Count Capacity
89 Apr 11
Carroll, J. M., Our Stake in Ther-
AUTHOR INDEX
A
A. & Lafer, Miniature
Ferrite Tuner Covers Broadcast
Abbot,
E.
Band
72 Feb 28
Aho, E. J. & Perry, Generating Characters for Cathode -Ray Readout.72 Jan 3
Aiken, W. R. & Heller, Built -In Ion
Trap Protects Cathode....EAW126 Feb 14
Albin, A. L., Designing Noisefree
Enclosure Openings
48 Aug 29
Allen, J. E., Radar Power Nom72 Jul 4
ograph
Anderson, A. E. & Hern, F -M Exciter
for Sight or Scatter Systems...148 Mar 14
Anderson, D. L., Fast Transistor Re145 Mar 14
lay
Anderson, R. E. Bearing Memory
44 Jan 31
Improves Direction Finder
Andrews, D. H. Winfield & Turntine,
Electronic Clock Reads Related
74 Feb 28
Time -of -Events
Rise
D.,
Temperature
Arany,
106 Oct 10
Chart
Armstrong, F. E., Gamma -Ray Detector Aids Oil Field Surveys 61 May 23
Armstrong, H. L., Transistorized
Trigger and Delay Generators
EAW96 Jan 17
Aronson, H. L. & Lamb, Semiconductors Shrink Servo System Size
69 Jan 3
Aucremanne, H. J. & WOOlatOri.
Telemeter System Relays Under84 Oct 10
sea Ordnance Data
Ayaki, K., Kiyota, Fujii, Uchimaru
& Nishimaki, Spark Machining
CD112 Oct 24
Produces Magnetron
B
Babcock, W. B., Unusual Tube Effects Cause Circuit Troubles....90 Sept
Bacon, W., Circuit Shifts Phase 360
EAW94 Jun
Degrees
Bagno, S. & Fasal. Intruder Alarm
12
6
Uses Phase -Sensitive Detector..102 Feb 14
Bair, B. L., Logical Design of SAGE
Radar Input Monitor
76 Aug 16
Baker, J. R., Webber, Croaks &
Preston, Radome Thickness Gage
70 Jun 20
is Frequency Stabilized
Balko, P. G. Infrared Finds Auto
82 Dec 5
Suspension Leaks
Banker, J. R. & Wood, Line Current
68 Aug 15
Controls Remote TV Receiver
Baroccio, C., TV Receivers Substitute for Marine Radar
EAW92 Jan 3
Battersby, L. R., Automatic Speech
71 May 23
Amplitude Control
Baugh, C. W. Jr. & Sienkiewicz,
Sound Signal Tunes TV Auto54 Apr 25
matically
Beliveau, M., Hot Probe Measures
Germanium Diffusion Depth.PT106 Sept 26
Bengston, P. S., Blocking Oscillator
Is Crystal Controlled
EAW88 Jun 20
Bengston, P. S., Frequency ModulaEAW100 Aug 1
tion Covers 25-75 kc
Benjamin, R., Electronic Switch
Doubles as Cathode Follower....81 Jan 17
Bennett, R. E., Brumach & Chalker,
Trigger Circuit Controls Quartz
66 Jul 18
Crystal Lapping
Benson. C. L., Dynamic Test for
Regulators
EAW90 Jun 20
Bernstein, F., Bonn & Torrey, B -H
-Tester Measures Memory Core
Parameters
76 Jan 17
Beurtheret. C. & Towlson, Special
Tube Fins
Offset Calefaction
CD104 Aug 15
Torrey & Bernstein,
B -II Tester Measures Memory Core
Parameters
76 Jan 17
Boode, C. N. & Calohan, Analog
Comparator for Production Testing
47 Mar 28
Brauer, F. & Kammer, Mobile Radio
System Provides 920 Channels 96 Oct 10
Brooks, F. E. Jr. & Neshyba, Stable
Receiving Circuits for Remote
Control
74 Aug 1
Brumach, J. F., Bennett & Chalker,
Trigger Circuit Controls Quartz
Crystal Lapping
66 Jul 18
Bonn, T. H.,
Bryan, D. H., Diodes Offset Silicon
Transistor Heat Drift ....EAW176 Mar 14
Burroughs, F. L. & Jana, Masks
Improve Picture Contrast..EAW76 Apr 25
Bushor, W. E., Electronics and the
American Automobile
73 Nov 21
Buuck, F. A. & Harter, Go No -Go
Gage Checks Out Bomarc Automatically
43 Jul 4
Byers,
H.
G. & Katchky, Slotted
Waveguide ' Array
Radar
for
Marine
94 Dec
5
C
Caldwell, J. W. & Wagner, Boosting
Power Transistor Efficiency
86 Nov 21
Calohan, C. E. & Boode, Analog
Comparator for Production Testing
47 Mar 28
Campling, C. H. R., Magnetic Inverter Uses Tubes or Transistors
168 Mar 14
44
monuclear Power
75 Dec 19
Chace, W. G., Cullington & Morgan.
Low -Voltage
Trigger
Controls
High Currents
86 Apr 11
Chalker, R. P., Brumach & Bennett,
Trigger Circuit Controls Quartz
Crystal Lapping
66 Jul 18
Charbonneau, J. R. & Roy, Transistor Unit Monitors Blood Pressure
82 Aug 15
Cheilik, P., Feedback Stabilizes Flip Flop
EAW92 May 9
Chen, K., Trigger Stabilizes Frequency Divider
EAW104 Nov 21
Collins, C. C., Jones & Vreeland,
Video Microplanimeter Detects
Bone Disease
85 Oct 24
Conway, T. F. & Smith, Magnetic
Resonance Determines .Moisture
61 Feb 28
Cooke, H., F -M Tuner Uses Four
Transistors
72 Aug 1
Cooley, C. C. Jr. & Simons K.,
Broad -Band Generator Has Wide
88 Nov 7
and Narrow Sweeps
Costrell, L., A -C Zero Locator
EAW98 Jan 17
Costrell, L., Regulated Supply OffEAW100 Jan 3
sets Line Changes
Cowan, J., Auto Tachometer Uses
Transistor
EAW92 Aug 15
Cronin, D., Squelch Circuit Mutes
66 May 9
Magnetic Tape Echoes
Crooks, R. G., Webber, Preston &
Baker, Radome Thickness Gage is
70 Jun 20
Frequency Stabilized
Crump, L R., Radio Waves Power
63 May 9
Transistor Circuits
Cullington, E. H., Chace & Morgan,
Low -Voltage
Trigger
Controls
High Currents
86 Apr 11
Custin, T. G. & Smith, Relay System
Diplexes Audio and Color Video 64 Jun 20
Fennick, B., Phase -Selective Gate
92 Dec 19
Rejects Quadrature
Field, G. C., Trap Improves TV PicEAW100 Nov 21
ture
Fields, W. Jr. & Kramer, Measuring
EAW60 Jan 31
Nonlinear Resistors
Fine, R S., Stereophonic Amplifier
77 Dec 5
for Home Phonographs
Fisher, J. F. & Sher, Airborne TV
System for Military Reconnais66 May 23
sance
Forbes, G. R. Jr., ,Sletten & Shodin,
Keeping Track of Earth Satellites
81 Oct 10
Foss, R. N., Transistor Preamp Has
EAW92 Jul 18
Very Low Noise
Foster, J. H. & Williams, Multiple Unit Feedthrough Capacitors.CD98 Jun 20
Foster, W. H., Strain Gage Oscil40 Jan 31
lator for Flight Testing
Frenzel, R. P., & Gutzwiller, Solid KiloSwitches
State Thyratron
62 Mar 28
watts
Frihart, N. & Krakora, Ultrasonic
68 Jun 6
Tones Select TV Channels
Fryer, W. D., Thyratron Regulates
EAW88 Jun 20
Supply
Fujii, T., Kiyota, Uchimaru, Ayaki
&
Nishimaki, Spark Machine
CD112 Oct 24
Produces Magnetron
G
Garrett, L. F., Low Noise Converter
52 Jan 31
for IGY Propagation Study
Gedney, G. A. & Davidson, Crystal
Oscillator Has Variable Frequency
11.8 Feb 14
Geiser, D. T., Dissipation Chart for
EAW92 Jun 20
T Attenuators
Geones, G. P., Comparison Circuit
EAW101 Nov 7
Measures A -C Peaks
Gesher, R. A. & Hodge, Degrease
Vapor Develops Printed Wiring
7
PT120 Nov
I -F
59 Apr 25
Gikow, E. & Elders, Ceramic
Filters Match Transistors
D
Daniels. A. F. & Linden, New Batteries for the Space Age
59 Jul 18
Dauksher, W. J., Harmonic Amplifier for X -Band Local Oscillator
80 Jun 20
Dauksher, W. J., Line Resonator
94 Dec 19
Chart
Davidson, D. S. & Wade, How Transistor Circuits Protect Atomic Re73 Jul 18
actors
Davidson, G. M. & Gedney, Crystal
Oscillator Has Variable Frequency
118 Feb 14
Davidson. M., Joseph & Zucker,
Using Markerless Pulse Trains to
Communicate
89 Nov 21
Davis, D. D., Cathode -Follower Gain
Approaches Unity
EAW94 Jan 3
Davis, D. D., High -Dynamic -Range
Differential Amplifier
EAW64 Jan 31
DeBacker, L. P. A., Tube Noise
Factor Chart
84 Jul 18
De Miranda, J. R., Push -Pull Amplifiers Drive Speaker Directly
76 Jul 18
Devaux, L. H., Nicolosi & Starkey,
New Intermetallics Offer Wide
48 Jul 4
Infrared Response
D'Hoop, H. & Dome, Series Triode
Stabilizes Million -Volt Generator
76 Jun 20
Dome, G. & D'Hoop, Series Triode
Stabilizes Million -Volt Generator
76 Jun 20
Dorf, R. H., Electronic Organ Uses
Neon Tone Generators
36 Aug 29
Dorsey, S. E., Diode Counter Calibrates Missile Testing Camera 93 Feb 14
Doser, M., Jet Spray Automates
PT98 Feb 28
Transistor Etching Cycle
Dulberger, L. H., Pulse Amplifier
86 Nov 7
With Nonlinear Feedback
Dulberger, L. H., Transistor Oscil43 Jan 31
lator Supplies Stable Signal
E
H
Hallo, M., Firing Circuits Trigger
86 Aug 1
Airborne Machine Guns
Hanks, H. C., Ferrite Radiators
Shrink Missile Antenna Systems49 Apr 25
Hargens, C. W., Cathode -Ray Re-
84 Jan 17
corder Compares Transients
Hargens, C. W., Semiconductors Cool
80 Dec 5
and Control Density Gage
Harrington, J. B., Amplifier Delay
88 Aug 15
Charts
Hertel, R. R., Word Generator for
71 Feb 28
Digital Testing
Harter, G. A. & Buuck, Go No -Go
Gage Checks Out Bomarc Auto-
Earle, W E., A -C Threshold Con-
EAW96 Jan 3
verts to Switch
Eberhard, E. & McSpadden, Graphical Design of Transistor Oscil90 Dec 5
lators
Edens, G. E., Stairstep Integrator
41 Mar 28
Analyzes Rotation
Elam, D., Proximity Transducer Uses
73 Jun 20
Rapid Relay
Elders, D. & Gikow, Ceramic I -F
59 Apr 25
Filters Match Transistors
Emmons, A. W.. Signal -Strength
90 Jun
Chart
Englemann, R. E., Phase -Shift
86 May
Curves
Gill, A., Matching Transistor -Diodes
75 Jan 17
Gill, A., Transistor Switch Design 97 Dec 5
Gombos, J., Dip -Brazing Eases
Matching of Complex Parts..PT196 Mar 14
Goodell, C. E., Integrator -Amplifier
110 Feb.14
for Core Measurements
Goodwin, J. K., Circuit Evens Scope
EAW96 Dec 19
Brightness
Goosey, M. H., Jr. & Lapsley, Magnetic Amplifiers Aid D -C MeasureEAW98 Dec 19
ments
Goosey, M. H. Jr., Designing Cold Cathode Tube Circults....EAW101 Jan 17
Gordon, E. S., High -Speed Tester
76 May 9
Checks Tubes in Groups
Gore, W. C., Ultrasonics Tests
32 Aug 29
Undersea Propagation
Gottlieb, E., Transistor Reflex Cir66 Jan 3
cuit Trims Receiver Costs
Graves, W. J., Dip Brazing Assembles Magnesium Waevguides.PT118 Jan 17
Greever, J. E., Jet Spray and PT111
Soak May 23
Cleanse Transistors
Gruber, P., Crystal Converter for
78 Apr 11
Tropo-Scatter Receivers
Gutzwiller, F. W. & Frenzel, Solid State Thyratron Switches Kilo52 Mar 28
watts
6
9
Ervin, H. D., Transistor Power Supply Has Overload Protection
74 Jun 20
Estep, H., Missile Antenna Design
EAW131 Feb 14
F
Farmer, R. W. & Reiner, Determining Arrival Time of Radio69 Aug 1
active Fallout
Fasal, J. & Bagno, Intruder Alarm
Uses Phase -Sensitive Detector 102 Feb 14
43 Jul
matically
4
Hayes, A. E. Jr., H -F Amplifier
165 Mar 14
Design
Hayes, A. E. Jr., Transistor Formulas Use h -Matrix Parameters....81 Feb 28
Haynes, H. E. & Hoger, Stop -Go
Scanning Saves Spectrum Space
84 Sept 26
Helbig, W. A., Warren & Rumble,
Transistorized Memory Monitors
66 Jan 17
Earth Satellite
Heller, R. E. & Aiken, Built -In Ion
Trap Protects Cathode....EAW126 Feb 14
Henderson, D. P., Regenerative Di77 Aug 1
vider Drives Precision Clock
Henderson, J. Jr., Vreeland, Williams
& Yeager, Unit Telemeters Scalp
EAW86 Jul 18
Voltages
Hendrix, C. E. & Purcell, Neon Lamp
68 Jun 20
Logic Gates Tick -Tack -Toe
Hendrix, C. E., Target Simulator
Tests Beam -Rider Missiles
32 Jan 31
Herscher, M. B., Designing Transistor A -F Power Amplifiers- .96 Apr 11
Hem, H. D. & Anderson, F -M Exciter
for Sight or Scatter Systems...148 Mar 14
Hewitt, W. H. & Von Aulock, X Phase
Moving Parts
Band
Shifter
Without
56 Jul
4
December 19, 1958 - ELECTRONICS engineering issue
Of
Hill, R., Discriminator Controls Air94 Oct 1)
craft Alternator
Hinton, R. C. P., Automatic Digital
System Bills Telephone Calls 96 Feb 14
Hoberman, M., Automatic Range
Selector for Electronic Voltmeter
84 Aug 1
Hodge, H. It. Jr. & Geshner.
Degrease Vapor Develops Printed
PT120 Nov 7
Wiring
Hoge, H. H., Diode Cuts Transistor
83 Jul 18
Cutoff -Current Drift
Hoger, D. T. & Haynes, Stop -Go
Scanning Saves Spectrum Space.
84 Sept 26
Hough, W. H. & King, Dip Solder
Machine Uses Solder Pumps.PT108 Jan 3
House, C. B., Matthews, Rochelle,
Van Allen, Schaefer & Schaffert,
Cyclops Cores Simplify Earth
56 Feb 28
Satellite Circuits
Howard, R. L., Peterson & Winckler,
Balloon Gear Monitors Cosmic
76 Nov 7
Radiation
Humphreys, T. I., Transistor Unit,
52 Apr 25
Detects Foetal Heart Sounds
Hurney, P. & Wasserman, Tones
Find Data in High -Speed Tape
92 Nov 21
Systems
Klivans, L. S., D -C Amplifiers for
96 Nov 21
Control Systems
Klivans, L. S., Modulators for Auto 82 Jan 3
matic Control Systems
Kornfleld, N. R., Newhouse & Kaufman, End -fired Memory Uses Fer100 Oct 10
rite Plates
Krakora, J. & Frihart, Ultrasonic
68 Jun 6
Tones Select TV Channels
Kramer, S. I. & Fields, Measuring
EAW60 Jan 31
'Nonlinear Resistors
Kurtz, J. A., Lead Powder Connects
PT92 Jul 4
Superconducting Film
L
La Bella,
3,1
C., Smith -Chart Guide
102 Dec
Lacy, P. D. & Wheeler, SHF Fre-
5
quency Sweeper Uses Backward 76 Jan 3
Wave Tube
Lafer, M. & Abbot, Miniature Ferrite
Tuner Covers Broadcast Band 72 Feb 28
Lamb, W. R. & Aronson, Semiconductors Shrink Servo System
69 Jan 3
Size
Lapsley, A. C. & Goosey, Magnetic
Amplifiers Aid D -C MeasureEAW98 Dec 19
ments
Lathrop, J. W. & Nall, Transistors
Are Made By Photolithography.
PT142 Feb 14
Ni.
Inouye, W. S. & Safford, Preventing
Equipment Vibration Failures 92 Apr 11
Ives, R. L., Alarm System Uses
74 May 23
Gated Neon Warbler
Ives, R. L., Circuit Times Operation
EAW62 Jan 31
of Portable Tools
Ives, R. L., Diode Bridge Protects
EAW78 Mar 28
Meters
Ives, R. L., Geiger Radiation Monitor
93 Oct 24
Indicates Continuously
for
Ives, R. L., Instrument Dollies
PT124
Dec 5
Close Quarters
Rings
Ives, R. L., Neon OscillatorEAW108
Oct 10
Ives, R. L., Neon Triode Gives Low EAW170 Mar 14
Speed Gate
Ives, R. L., Oscillator Reduces
ReEAD110 Apr 11
corder Stiction
Ives, R. L., Override Circuits Are
Simplified
Ives, R. L.,
Strobotron
Shot
EAW50 Aug 29
Counter Uses
EAW94 Aug 15
J
Jacob, M. I. & Mattern, Compressed
Time Boosts Single-Sideband Ca52 Jul
pacity
Jacobson, B. & McKay, Pill Tele51 Jan
meters from Digestive Tract
James, E. R., Semiconductors Provide
Analog
Voltage
4
3
Source.
EAW96 Aug 15
Jans, J. T. & Burroughs, Masks
Improve Picture Contrast..EAW76 Apr 25
Johnson, C. E., Treharne & Nosker,
Pulsed X -Ray May Aid Cancer
EAW58 Jan 31.
Fight
Johnson, E. C. & Vantine, Modified
Transceivers Compute Dlstance.94 Sept 12
Johnson, R. W., Pi Network NomoEAW108 Sept 12
graph
Jones, 0. W. III, Vreeland & Collings, Video Microplanimeter De85 Oct 24
tects Bone Disease
Jordan, W. F., Low -Impedance
EAW78 Mar 28
Transistor Preamp
Joseph, H., Davidson & Zucker,
Using Markerless Pulse Trains to
89 Nov 21
Communicate
Jurgen, R. K., How Transducers
Measure and Control (Special
59 Jul 4
Report)
Jurgen, R. K., Technical Highlights
72 Nov 7
of '58 WESCON
K
Kammer, D. & Brauer, Mobile Radio
System Provides 920 Channels 96 Oct 10
Karg, L. A., Crystals Stabilize Multi81 Dec 19
channel F -M Monitor
Kashiwabara, N., Path Attenuation
EAW98 Jun 6
Nomograph
Katchky, M. & Byers, Slotted Wave guide Array for Marine Radar..94 Dec 5
Kaufman, M. M., Newhouse & Korn field, End -Fired Memory Uses Fer100 Oct 10
rite Plates
Kazan, B., Solid -State Panel Ampli84 Sept 12
fiers X -Rays
Keefe, J. T., Rate -of -Rise Control
EAW94 Sept 26
for Filaments
Keen, H. S., Around -the -Mast Rotary
CD112 Nov 21
Joint
Kelley, G. J., Selection of Modulation
56 Mar 28
for Speech Communication
Mewled, S. T., Watch Timer with
84 Dec 19
Precise Time Base
King, A. S. & Hough, Dip Solder
Machine Uses Solder Pumps.PT108 Jan 3
Kington, C. N., Radio Telescope Sees
70 Jun
2 Billion Light Years
Kiyota, Y., Fujii, Uchimaru, Ayaki
Spark Machine
& Nishimaki,
CD112 Oct ^4
Produces Magnetron
G
Lawson, E. W. & Oakes, Transistor
95 Apr 11
Filter Ripple
Lechtreck, L. W., Radiation Charts
for Paraboloidal Antennas....104 Sept 12
Leep, R. W. & Ross, Ultrasonic
Pulses Detect Reactor -Slug Flaws.
59 Jun 20
Lefkowitz, H., Transistor A -C Amplifier Uses Multiple Feedback 84 May 23
Leskinen, J. I., Four Ways To
82 Jun 6
Simulate Radar Targets
Levi, L., Light Modulator Records
80 Aug 1
Airborne Radar Displays
Levy, I. J., Reverse -Current Tester
EAW88 Jan 3
Speeds Diode Checks
Lewis, E. B., Crystal's Frequency Is
PT118 Aug 1
Cleanliness Test
Lindeman, B., Antenna Null Nomo102 Apr 11
graph
Linden, D. & Daniel, New Batteries
59 Jul 18
for the Space Age
Lindmayer, J. & Zuleeg, Sweep
Equipment Displays Transistor
100Dec 5
Beta
Liske, K. G. & Tarnowski, Timer
Shutters CRT for Single Frame
83 Apr 11
Photos
Loban, J. J., Radio System Calcu89 Sept 26
lator
Londell, W., Tester Sorts Capacitor
PT120 Oct 24
Plates
Lory, .1., Standing -Wave Ratio Con56 Jan 31
version Chart
Loucks, H. L., Strong, Light Radome
PTIO1 Feb 28
Is Foam Polystyrene
M
MacArthur, R. C. & Ungar, Digital
Recorder for Wind -Tunnel Data.86 Dec 5
Macaskill, R. B., Tilt Chart for DisEAW80 Jul 4
placed Antenna Feed
MacDonald, J. R., Active Bandpass
84 Aug 15
Filter Has Sharp Cutoff
Mainberger, W. A., Primary Frequency Standard Using Resonant
80 Nov 7
Cesium
MacKay, S. & Jacobson, Pill Tele51 Jan 3
meters From Digestive Tract
Maloy, R. W., Photoformer Solves
78 May 23
Sound Barrier Problems
Manoogian, H. A., Transistor Photo29 Aug 29
flash Power Converters
Maroz, J., Magnetic Amplifier DeEAW86 Jul 18
tects Open Fuses
Marshall, N. K., Waveform Rotates
Ultrasonic "Jack Hammer" Drill.
PT116 Jan 17
Martindell, C. C., Copper Spray, Clip On Leads Make Varistors....PT108 Jul 18
Martindell, C. C., Varistor Production Machinery Avoids Abrasion
PT102 Jun 20
Mastin, M., Shaper Ram Drives
PT106 Dec 19
Core Swager
Mathis, H. F., Simplified Calcula-
tions for Transmission Lines....74 Apr 25
Mathis, H. F., T and Pi Network
94 Jan 17
Design
Mathis, H. F., Two -Sided Matching
104 Apr 11
Design
Mattern, J. & Jacob, Compressed
Time Boosts Single-Sideband ca52 Jul 4
pacity
Matthews. W., Rochelle, House, Van
Allen. Schaefer & Schaffert, Cyclops Cores Simplify Earth -Satel56 Feb 28
lite Circuits
Mattingley, R. L., McCabe & Traube,
Split Reflector for Microwave An86 Dec 19
tennas
Maxey, T. J., Toroidal Core Winding
CD121 Sept 12
Chart
Maxwell, E. & Phillips, Broad -Band
Amplifier for Radar and Scatter.
81 Sept 26
Maynard, F. B., Half -Adders Drive
80 Jul 18
Simultaneous Computer
McCabe, B., Mattingley & Traube,
Split Reflector for Microwave Antennas
ELECTRONICS engineering issue - December 19, 1958
86 Dec 19
McCartney, R. D., Designing Transformers for Blocking Oscillators.
78 Feb 28
J. H. & Minter, Compatible Stereo Disk Uses F-111
65 Jun 6
Multiplexing
McNaney, J. R., Electron Gun Oper74 Sept 26
ates High -Speed Printer
McPherson, R. B., Grinding CeramFaster
Is
Dual
Method
by
ics
PT112 Jun 6
McRae, D. H., VU Recorder Has
EAW78 Apr 25
Standard Response
McShan, C. H., Transistor Drives
EAW86 Jan 3
Clock
McSpadden, W. R. & Eberhard,
of
Transistor
Design
Graphical
90 Dec 5
Oscillators
McWilliams, C. W., Designing Safety
69
Nov 7
Into Automatic Pilot Systems
Mennie, J. H., Fast Cable Impedance
EAW86
Feb 28
Tests
Merson, L. N , Matching Printed
EAW112 Dec 5
Circuit Impedances
Meth, M., Short and Breakdown
EAW108 Apr 11
Tester
Meunier, M. B., Magnetic Amplifiers
68 Feb 28
Regulate D -C Supply
Meyer, J. W., The Solid-StfCte Maser
66 Apr 25
-A Supercooled Amplifier
McConnell,
OperMiller, G. B., Multivibrator
EAW106 Dec
ates Relay
Miller, G. B., Transistor Q -Multi 79 May
niter for Audio Frequencies
5
9
Miller, L. S., Loaded -Lens Antenna
44 Mar 28
Tracks Missiles
Minter, J. B. & McConnell, Compatible Stereo Disk Uses F -M65 Jun 6
Multiplexing
Minty, G., Jamming Nomograph 83 Jun 20
Montgomery, G. F., Wireless Micro54 Jan 3
phone Uses F -M Modulation
Morgan, H. L., Oscillator Measures
EAW126
Feb 14
Tube Capacitance
Morgan, R. I., Cullington & Chace,
Controls
Trigger
Low -Voltage
86 Apr 11
High Currents
Myers, R. G. & Renken, Detecting
72 Sept 26
Invisible Flaws in Wire
N
Nall, J. R. & Lathrop, Transistors
Are Made By Photolithography.
PT142 Feb 14
Natkins, E., Casting Brushes in ConPT145 Feb 14
tinuous Strips
for
Nemeth, 0. R., Digital Motor
CD110 Nov 7
Severe Environment
Nerwin, H. N., Ultrasonic Gage
29 Jan 31
Work
Speeds
Neshyba, S. J. & Brooks, Stable Re-
ceiving Circuit for Remote Con-
74 Aug
trol
Newhouse, V. L., Kornfield & Kaufman, End -Fired Memory Uses Fer-
rite Plates
Nicolosi,
S.
1
100 Oct 10
J., Devaux & Starkey,
New Intermetalllcs Offer Wide In48 Jul 4
frared Response
Nirenburg, A., How to Measure Mid46
Aug 29
frenquency Phase Shift
Nish imaki, M., Ayakl, Kiyota,
Fujil & Uchimaru, Spark Machining Produces Magnetron....CD112 Oct 24
Nosker, C. R., Treharne & Johnson,
Pulsed X -Ray May Aid ZAW58
Cancer Jan 31
Fight
Nye, D. D. Jr., Low -Pass R -C
Filter with Optimum Response..104 Oct 10
O
& Lawson, Transistor
95 Apr 11
Filters Ripple
O'Kelley, H. E., Pulse -Cross Modi54 Feb 28
fication of TV Receivers
Orr, B. E., Direct Drive Amplifier
146 Mar 14
for Two -Speed Servos
Owlett, C.. Frame -Rate Checker for
88 Sept 12
Oakes,
F.
Motion -Picture Cameras
Palmisano, R. R. & Sherman, Wave guide Coils Make Compact Delay88 Oct 24
Lines
Paolantonio, A., Multicouplet Nomograph for TV Antenna Network.86 May 23
Perlman, S. E., Staggered Rep Rate82 Nov 21
Fills Radar Blind Spots
Perry, J. H., Composite Circuit Layout Guides Satellite Assembly
PT92 Apr 25
Perry, K. E. & Aho, Generating
Characters for Cathode -Ray Read72 Jan 3
out
Peterson, L. E., Howard & Winckler,
Cosmic
Monitors
Gear
Balloon
76 Nov 7
Radiation
Petrick, W. R. & Travis, Triangular
Chassis Cuts TV Production Costs.
PT108 May 23
Phillips, J. H. & Maxwell, Broad Band Amplifier for Radar and
81 Sept 26
Scatter
Plank, V. G., Atmospheric Angels
140 Mar 14
Mimic Radar Echoes
Pomeroy, A. F.. Microwave ComFAW92 Jun 6
ponent Tester
45
Porterfield, C. P. & Williams, Spark
Machine Tool Has Servo Control.90 Oct 24
Preston, A. C., Webber, Crooks &
Baker, Radome Thickness Gage is
Frequency Stabilized
70 Jun 20
Prugh, T. A., Switch -Time Nomograph
72 Apr 25
Purcell, h. B. & Hendrix, Neon
Lamp Logic Gates Play Tick -Tack
Toe
68 Jun 20
R
Radcliff, F. F., Transistor Circuit
EAW76 Jul 4
Varies Reactance
Randall, D. S., Go No -Go Meter
66 Feb 28
Speeds Resistance Check
Ranis, A. V., Heat Program Timer
Controls Weld Energy
76 Jun 6
Raskhodoff, N., Telemeter Trans46 Jul 4
mitter for Vanguard Rocket
ReCorr, K. H., Simplified Design of
94 Aug 1
Pulse -Forming Networks
Reiner, 0. Jr., & Farmer, Determining Arrival Time of Radioactive
69 Aug 1
Fallout
Renken, C. J. & Myers, Detecting In72 Sept 28
visible Flaws in Wire
Ringland, R. S., Pulse Modulator
102 Sept 12
Works into Variable Load
Robertson, D. W., Plug -In Bridge
Checks VHF Quartz Crystals...82 May 9
Rochelle, R. W., Matthews, House,
Van Allen. Schaefer & Schaffert,
Cyclops Cores Simplify Earth 66 Feb 28
Satellite Circuits
Rockafellow, S. C., Electronic Control Times High -Speed Welding
70 Aug 15
Cycle
Rockwell, R. G., Klystron Amplifier
CD56 Aug 29
Uses Capacitive Tuning
Rose, A., Magnetic -Core Dividers for
76 Apr 11
ITV Sync Generators
Rosenheck, B. M.. Simplifying Cur92 Nov 7
rent Feedback Analysis
Rosenthal, L. A., Ergmeter Measures
79 Jun 6
Burst of Energy
Ross, J. D. & Leep, Ultrasonic Pulses
59 Jun 20
Detect Reactor -Slug Flaws
Roy, 0. Z. & Charbonneau, Transistor Unit Monitors Bl000d Pres82 Aug 15
sure
Ruby, S. L. & Weisman, Solid -State
62 Jun 20
Photocell Sees Through Haze
Rumble, W. G., Warren & Helbig
Transistorized Memory Monitors
66 Jan 17
Earth Satellite
Rummell, J. A., Modern Sonar Sys56 Jan 3
tems Guide Atom Subs
Ruth, L., Etched I -F Amplifier Pares
135.Mar 14
S
Sadler, G. V., Taped Tones Control
63 Jan 3
Overhead Crane
Safford, F. B. & Inouye, Preventing
Equipment Vibration Failures 92 Apr 11
Sammis, E., Scope Analyzes Re68 May 9
ciprocating Engines
Sandberg, G. H., Contour Plotter
Monitors Multiple -Beam Radia98 Dec 5
tion
Seaward, P., Magnetic Gage Locates
Encased Metal Parts
65 Aug 15
Schaefer, D. H., Matthews, Rochelle,
House, Van Allen & Schaffert,
Cyclops Cores Simplify Earth Satellite Circuits
56 Feb 28
Schaffert, J. C., Matthews, Rochelle,
House, Van Allen & Schaefer,
Cyclops Cores Simplify Earth 56 Feb 28
Satellite Circuits
Schauwecker, H. E., Transistor H -F
88 May 9
Cutoff Nomograph
Schenkerman, S., Designing Stability
122 Feb 14
into Transistor Circuits
Schenkerman, S., Designing Transistor D -C to A -C Converters
78 Sept 26
Schild, R. & Wesson, Servo Circuit
73 Apr 11
Controls Artificial Heart
Schmerling, E. R., Self -Setting Servo
71 Jan 17
Gate
Schurr, V. D., D -C Amplifier
Expands Input Voltage Range 87 Jun 6
Schuster, D., D -C Transistor Amplifier for High-Impedence Input 64 Feb 28
Schwendiman, G. L., Circular Nomograph for Percent Change.EAW102 Jan 3
Scott, L., Adjustable Nonlinear
CD84 Jul 4
Function Generator
Seddon, J. C., Stable Crystal Filter
Is Parallel Resonant
155 Mar 14
Seed, R. G. & Withey, Acoustic
Cavity Detects Brakes in Film ..50 Mar 28
Seed, R. G., Electronic Chopper Uses
EAW90 May 23
New Photocells
Shackel, B.. Sloan & Warr, Detector
36 Jan 31
Plots Eye Movements
Shaw, R. F.. Universal Tape Amplifiers for Digital Data Systems 91 Oct 10
Shepard, W. G., Phase Shifter Range
Exceeds 180°
,EAW96 May 9
Sher, N. & Fisher, Airborne TV System for Military Reconnaissance.66 May 23
Sherman, A. & Palmisano, Wave guide Coils Make Compact Delay
Lines
88 Oct 24
Shenfeld, S., Transistors Reduce Relay Servo Size
73 Aug 15
Sherr. S.. Rapid Conversion of Hy75 Mar 28
brid Parameters
46
Shodin, L. F., Sletten & Forbes,
Keeping Track of Earth Satellites
81 Oct 10
Sideris, G., Production Machinery
for the Electronics Industry (Spe-
cial Report)
73 Oct 24
Sienkiewicz, L. J. & Baugh, Sound
Signal Tunes TV Automatically 54 Apr 25
Sifford, B. M. & Vincent, Meteor
Bursts Provide Communications
Path
42 Aug 29
Simons, K. & Cooley, Broad -Band
Generator Has Wide and Narrow
Sweeps
88 Nov
7
Sletten, C. J., Forbes & Shodin.
Keeping Track of Earth Satellites
81 Oct 10
Sloan, R. C., Shackel & Warr, Detector Plots Eye Movements
Small, W. H., Flame Jets Replace36 Jan 31
Slow Annealing in Oven
PT106 Jul 18
Smith, J. & Custin, Relay System
Diplexes Audio and Color Video..64 Jun 20
Smith, R. J. & Conway, Magnetic
Resonance Determines Moisture.51 Feb 28
Southworth, G. Resolution Chart
Aids TV Camera Focusing
100 Feb 14
Staley, W. W., Models Simplify Circuit Planning
PT200 Mar 14
Starkey, W. S., Nicolosi & Devaux,
New Intermetallics Offer Wide
Infrared
48 Jul 4
Sternlicht, L., Electronic Simulator
Gives Countermeasures Targets 78 Dec 19
Stock, K., Epoxy Shells Simplify
Potting of Resistors
PT72 Jan 31
Sullivan, M. V., Highlight Equalizer
Sharpens TV Pictures
72 Jan 17
Sullivan, S. A., Transistor Radio
Uses Few Parts
EAW90 Jan 3
Sutcliffe, H., Transistor Temperature
Controller
EAWS1 Mar 28
Sylvan. T. P., Bistable Circuits Using
Unijunction Transistors
89 Dec 19
Tarnowski, A. A. & Lisk, Timer
Shutters CRT for Single Frame
Photos
83 Apr 11
Tartas, J., Soldering Gun Uses
Chassis Resistance
PT106 Jan 3
Tatge, R. B., Technique Finds Tube
Resonances
EAW90 May 9
Tewksbury, J. M., Transistor Tester
Predicts Failures
EAW92 Sept 26
Tewksbury, J. M., Transistorized P -A
System
Adjusts
to
Aircraft
Noise
106 Feb 14
Thomas, H. E., Saturable Reactors
Fire Radar Magnetrons
72 May 9
Thompson, M. C. Jr., Vetter &
Waters, SHF Frequency Standard
Uses Double Conversion
100 Apr 11
Toblo, J. M., Electronics Determines Cement Setting Time
88 Oct 10
Tomaino, M. F., Environmental Testing of
Electronic Equipment
(Special Report)
59 Mar 28
Torrey, R. D., Bonn & Bernstein,
B -H Tester Measures Memory Core
Parameters
76 Jan 17
Towles, W. B., Transistorized Ana-
log -Digital Converter
90 Aug 1
Towlson, H. G. & Beurtheret, Special
Tube
Fins
Offset
Calefaction
CD104 Aug 15
Traube, M. J., Mattingley & McCabe,
Split Reflector for Microwave Antennas
86 Dec 19
Travis, L. R. & Petrick, Triangular
Chassis
Cuts TV
Production
Costs
PTIO8 May 23
Treharne, R. W., Nosker & Johnson,
Pulsed X -Ray May Aid Cancer
Fight
EAW58 Jan 31
Turntine, M. Jr., Winfield & Andrews
Electronic Clock Reads Related
Time -Of -Events
74 Feb 28
U
Itchimaru, K.. Kiyota, Fujil, Ayaki
&
Nishimaki, Spark Machine
Produces Magnetron
CD112 Oct 24
Ungar, W J. & MacArthur, Digital
Recorder for Wind -Tunnel Data.86 Dec
5
V
Van Allen, R. L., Matthews, Rochelle,
House,
Schaefer
&
Schaffert, Cyclops Cores Simplify
Earth -Satellite Circuits
56 Feb 28
Vanderschmidt, G. F., Two -Transistor Amplifier Corrects Heart
Block
80 Nov 21
Van Eckhardt, H. P., Crevasse Detector Blazes Glacial Trails
63 Jan 17
Vantine, H. Jr. & Johnson, Modified
Transceivers
tance
Computer
Dis-
94 Sept 12
Vetter. M. 3., Thompson & Waters.
SHF Frequency Standard Uses
Double Conversion
100 Apr 11
Vincent. W. R. & Sifford, Meteor
Bursts
Provide
Communications
Path
42 Aug 29
F., Magnetometer Makes
Continuous Measurements
152 Mar 14
Voice, C. C., Magnetic Amplifier
Drives Gyro Indicator
114 Feb 14
Von Aulock, W. H. & Hewitt.
X -Band Phase Shifter Without
Moving Parts
66 Jul 4
Vreeland, R. V., Jones & Collins,
Video Microplanimeter Detects
Bone Disease
85 Oct 24
Vreeland, R. W., Williams, Yeager
& Henderson,
Unit Telemeters
Scalp Voltages
EAW86 Jul 18
Voelker,
Wade, E. J. & Davidson, How Transistor Circuits Protect Atomic
Reactors
73 Jul 18
Wagner, T. C. G. & Caldwell, Boosting Power Transistor Efficiency.86 Nov 21
Warr, H. J. J., Shackel & Sloan.
Detector Plots Eye Movements 36 Jan 31
Warren, C. S., Rumble & Helbig,
Transistorized Memory Monitors
Earth Satellite
66 Jan 17
Wasserman, R. & Hurney, Tones
Find Data in High -Speed Tape
Systems
92 Nov 21
Waters, D. M., Thompson & Vetter,
SHF Frequency Standard Uses
Double Conversion
100 Apr 11
Webber, A. H. Jr., Crooks, Preston
& Baker, Radome Thickness Gage
is Frequency Stabilized
70 Jun 20
Weber, S., The Mayer: A Low -Noise
Microwave Amplifier
65 Sept 26
Weir, J. D., Print Timer Controls
Density and Contrast
108 Feb 14
Weisbecker, H. B., Distress Transmitter is Hybrid
EAW98 Aug 1
Weisman, P. & Ruby, Solid -State
Photocell Sees Through Haze...62 Jun 20
Weller, E. F.. Roof -Top -Target
Tubes Pulse X -Rays
138 Mar 14
Wesson. N. & Schild, Servo Cir-
cuit Controls Artificial Heart...73 Apr 11
Wheeler, D. E. & Lacy, SHF Frequency Sweeper Uses Backward Wave Tube
76 Jan
White, D. R. J., Band -Pass Filter
Design Technique
79 Jan
Wilhelmy, H. J., Circuit Generates
3
3
Tape Stop Signal
EAW11.5 Sept 12
Williams, D. A. Jr., Transistors
Ruggedize Airborne Telemetry
Keyer
81 Sept 12
Williams, E. M. & Foster, Multiple Unit Feedthrough Capacitors.CD98 Jun 20
Williams, E. M. & Porterfield, Spark
Machine Tool Has Servo Contro1.90 Oct 24
Williams, L. A., Vreeland, Yeager
& Henderson,
Unit Telemeters
Scalp Voltages
EAW86 Jul 18
Williams, R. H., Transistor Chopper
Drives Accurate Clock
64 May 23
Winckler, J. E., Peterson & Howard,
Balloon Gear Monitors Cosmic
76 Nov 7
Radiation
Winfield, R., Andrews & Turntine,
Electronic Clock Reads Related
Time -Of -Events
74 Feb 28
Wingfield, J. D., Wire Lists Simplify
PT112 Jun 6
Assembling
Withey, E. L. & Seed, Acoustic
Cavity Detects Breaks in Film..50 Mar 28
Withey, E. L., Cathode -Ray Tube
Adds Third Dimension
81 May 23
Wolfe, R. W., Decade Decimal
Counter Speeds Printed Readout.88 Jan 17
Wood, C. H. & Banker, Line Current
Controls Remote TV Receiver 68 Aug 15
Woolston, D. D. & Aucremanne,
Telemeter System Relays Undersea
84 Oct 10
Ordnance Data
Wormser, J. J.. Comet Shows CRT
EAW88 May 23
Beam Direction
Yeager, C. L., Vreeland, Williams
&
Henderson, Unit Telemeters
EAW86 Jul 18
Scalp Voltages
Yeh, L. P., Tropo-Scatter System
91 Jan 17
Design Charts
Young, C. W., Radar System Plan120 Feb 14
ning
young, L., Monitor Displays Radar
49 Jan 31
Noise Figures
Yu, Y. P., Coincident Slicer Measures
99 Sept 12
Phase Directly
Zaander, C. J., Computer Analyzes
68 Jul 18
Brain Waveforms
Zelle, J., Phone Calls for Broadcast
EAW96 Nov 7
Zoll, D. J., Simple Plotter Analyzes
Radar Noise Rapidly
162 Mar 14
Zucker, N., Davidson & Joseph.
Using Markerless Pulse Trains to
89 Nov 21
Communicate
R. & Lindmayer, Sweep
Equipment Displays Transistor
Beta
100 Dec 5
Zuleeg,
Not included in original byline
December 19, 1958 - ELECTRONICS engineering issue
MECHANIZED ORACLE EXPLORES
BELL SYSTEM COMMUNICATIONS
At monitoring console, designer H. D. Irvin watches performance of "Sibyl" during test of user -reaction to experimental telephones. A computer -like machine, Sibyl simulates the functions of future communications devices
and records interplay between phones and users. Sibyl is named after the women oracles of ancient Greece.
A mechanized "oracle" is helping Bell Telephone Laboratories predict the future in communications devices and
systems.
The oracle is "Sibyl," a computer -like machine developed by Bell Laboratories engineers and psychologists.
It can simulate the action of many kinds of communications
devices. Through Sibyl, new kinds of telephone service can
be evaluated without the considerable expense of building
actual equipment. Observing and recording users' reactions to the simulated equipment, Sibyl provides indications of how users would react to proposed new systems
features and equipment.
Sibyl, for example, is used to test the reaction of Bell
Laboratories people to experimental push-button telephones. Each test subject has a push-button telephone in
his office and he uses it in the ordinary course of his busi-
ness. But the set is not connected directly to the local PBX:
it is connected through Sibyl, which performs the special
signaling functions required by such a push-button telephone. In this way, Push-button telephone service is given
to a group of people without modifying the PBX, or providing completely instrumented push-button telephones.
At the same time, Sibyl gathers information on how
the call was placed-date, time, originator, speed of opera-
tion, errors, whether the line was busy or the call completed. Sibyl does all this without violating the privacy of
telephone conversations.
Bell engineers expect that Sibyl will provide a better
understanding of the relationship between telephone equipment and the people who use it. Sibyl's rapid and economical technique for evaluating new types of telephone
sets is an important contribution to the art of telephony.
BELL TELEPHONE LABORATORIES
WORLD CENTER OF COMMUNICATIONS RESEARCH AND DEVELOPMENT
AEROCOM'S 1046 H. F. TRANSMITTER
POWER
1000 WATTS
WITH
STABILITY
.003% STABILITY
Rugged, versatile general purpose H. F.
transmitter- Aerocom's 1046 packs 1000 watts
of power and high .003% stability under
normal operating conditions (0°to +50°C.).
Excellent for point-to-point or ground -to air communications.
Multi -channel operation on telegraph Al,
or telephone A3 with GM -8A modulator ...
new Aerocom 1046 can be remotely controlled
with TMC-R at control position and uses only
one pair of telephone lines. In A3 operation,
the local dial control panel is located in
modulator cabinet.
Transmitter cabinet has 8% inch panel
space available for either local dial control
panel or frequency shift keyer.
Mode11046 operates on 4 crystal -controlled
frequencies (plus 2 closely spaced frequen-
cies) in the band 2.0-24 Mcs. Operates on
one frequency at a time; channeling time
2 seconds. Operates into either balanced or
unbalanced loads. Operates in ambient -35°
to+50° C. Power supply: nominal 220 volts,
50-60 cycles, single phase.
Complete technical data on request
GM 8g,041.,44.
ti
Now! Complete -package, 192 channel, H. F.,
75 pound airborne communications equipment
by Aer-O-Com! Write us today for details!
AER
48
CIRCLE 29 READERS SERVICE CARD
COM
105
CIRCLE 30 READERS SERVICE CARD-}
The New Brush Mark
opens up
whole new world
of direct writing applications
ST111,741::NTS
iiRUSH
1111V1NON Co, C. ~Tr CO./41011,1,0,
Sensitivity
10mvIline (mm). Fill scale deflection from
chart center * 200 mu.
Measurement Range
.010v. to 400c.
The portability and remarkable simplicity of the
Brush Mark II make it practical to use anywhere.
Wherever you work-in research, design and
development, production, field testing-you get an
immediate ultralinear record of performance
. for
quick analysis and corrective action on the spot .
for study at a later date
for reproduction by
conventional low-cost copy methods.
.
Input Impedance
5 megohm single -ended, 70 megohm rya
i
r rl.
.
.
Frequency Response
D.C. to 100 cps.
Recording Channels
Four, 2 event channels and 2 analog.
Chart Speeds
1, 5, 25, 125 mm/see.
Power Requirements
105-125v., 60
135 watts at 1T50.
.
.
.
As foolproof as you'd hoped for, this recorder
has built-in amplifiers, permanent calibration, instant paper loading and a "white glove" writing
as a
system. Use it as a recording voltmeter .
supplement to your "scopes".
.
.
CALL-WRITE-117IRE for immediate shipment from
stock - 51350 F.O.B. Cleveland.
-brush
3405 PERKINS AVENUE
INSTRUMENTS
DIVISION 01
CLEVITE 1 CLEVELAND 14, OH)
Experience-the added alloy in A -L Stainless, Electrical and Tool Steels
-11150
GUARANTEEI
10
2000
200
TEST
40
GAUSSES
FLUX
DENSITIES
-STANDARD
*.014 and .006 Strip
GUARANTEED PERMEABILITY... and at higher values
than old average values in AL -4750
AL -4750 nickel -iron strip now has higher permeability
and the new, higher values
values than ever before
.
.
.
are guaranteed. For example, using the standard flux
density test, at 40 induction gausses, AL -4750 now has
57% higher permeability than in the past. And permeability values are guaranteed.
This guaranteed permeability means greater consist-
ency and better .predictability for magnetic core performance ... permits careful, high performance design.
The improvement in AL -4750 didn't just happen. It is
the result of Allegheny's electrical alloy research and
production program in nickel -bearing steels. A similar
improvement has been made in AL Moly Permalloy.
And research is continuing on silicon steels including
AL's famous Sllectron (grain oriented silicon steel), as
well as on other magnetic alloys.
Another service of Allegheny Ludlum includes complete facilities for the fabrication and heat treatment of
laminations. Years of experience in AL's lamination
department means that Allegheny Ludlum has encountered and solved most problems common to core
materials. This practical know-how is available to all.
Call us for prompt technical assistance. Write for blue
sheet EM -16 for complete data on AL -4750.
Allegherzy Ludlum Steel Corporation, Oliver Building,
Pittsburgh 22, Pa. Address Dept. E-12.
WSW 7269
ALLEGHENY LUDLUM
STEELMAKERS TO THE ELECTRICAL INDUSTRY
Export distribution, Electrical Materials: AIRCO INTERNATIONAL INC., NYC 17
Export distribution, Laminations: AD. AURIEMA, NYC 4
50
CIRCLE 31 READERS SERVICE CARD
December 19, 1958 - ELECTRONICS engineering issue
Tro nsitron SILICON
VOLTAGE REFERENCES
USE THIS EASY WAY TO CHOOSE
THE RIGHT REFERENCE FOR YOUR APPLICATION
Wide range of low temperature
coefficients
Transitron's broad line of silicon voltage references lets you design the right temperature coefficient into your equipment
without the
expense of more stability than is needed.
.
FOR POWER
CHOOSE
TO GET
SUPPLY VOLTAGE
TOLERANCE OF
TRANSITRON
TYPE NUMBER
TEMPERATURE
COEFFICIENT OF
.
.
'11111111111111111111111111111111P''.11411111.111/ --"411111111.1111.111F"
Operation from - 55°C to +100°C
These units provide a stable reference voltage
over an extreme range of operating conditions
... from -55°C to +100°C.
+.18%
SV3176
OR SV3207
The compact axial lead package may be used as
±.25%
SV3175
OR SV3206
easily as a two -watt resistor. Each reference
consists of hermetically sealed glass diodes. It
may be operated in any position without voltage variation. (Conventional types 1N430 and
±.5%
Easily mounted, compact packages
fiSV3174
.001%/°C
.002%1°C
.003%/°C
1N430A are also available when equipment design requires stud mounting.)
Application Engineering service
Our Applications Engineers will be glad to discuss applications where low temperature coefficient references may be useful to you. Or, send
for bulletin TE-1352, which contains full technical data.
±1%
.005%/°C
/SV3173
± 1.8%
SV3171
.01%/°C
± 2.5%
/SV3170
.02%/°C
Actual size
Tra n5itron
electronic corporation
wakefield, massachusetts
tft
Transistors
Diodes
Regulators
CIRCLE 32 READERS SERVICE CARD
Rectifiers
BfADYfOBTOMORROdYs
MINTS-
Only tubes can perform many difficult jobs of tomorrow's advanced systems and
still give the performance, flexibility, and reliability you require. The significance
of these tube advantages is increasing through General Electric's program
to improve constantly such 5 -Star qualities as known, predictable reliability.
SINEW
51TAR 1111167
ELECTRONIC TUBES are, and will remain,
superior in these areas of performance :
Proved reliability.
VHF and UHF capability, and flexibility
at these frequencies.
One third the number of devices.
Economy.
Stable under ambient -temperature variations. Tolerate high temperatures.
Low noise in wide -band RF circuits.
High -voltage capability.
w Uniform product, with predictable performance to ratings.
This margin of superiority grows as
General Electric's active program of im-
provement makes 5 -Star Tubes still more
efficient and reliable. Design ; manufacture ;
test; application-every product stage from
development to final use in circuits shows
progress in materials, methods, or both, as
illustrated and described below.
14,000 tubes, using various cathodes and
cathode coatings, make up one of many tests
by General Electric to'help determine the
specifications for future 5 -Star Tubes having even better performance. Equipment
designers can be sure that General Electric
leadership in high -reliability tubes is being
maintained and strengthened ; that 5 -Star
types will continue to meet the challenges
of advanced electronic circuitry.
New cathodes for PROGRESS IN MANUFACTURE. Ultrasonic cleaning PROGRESS IN TESTING. General Electric's
G -E 5 -Star Tubes reduce interface now is used for critical tube parts. This further new impulse test, with vibrational
and degradation of characteristics extends General Electric's famed SNOW WHITE output measured both in peak and inthroughout life, mean built-in reli- technique for excluding impurities of all kinds tegrated values, promotes lower -noise
ability. 100% tube stabilizing-used -notably dust and lint-during 5 -Star Tube tubes where shock and vibration
only by General Electric-adds to manuf acture ... A new direct -flow coating occur. Interface life tests; 100% DC
cathode and tube dependability and method for tube heaters accurately centers the testing for shorts and opens: these
long life. New glass technology gives wire, and provides an even coating, for more are among the many checks that make
5 -Star tubes constantly more reliable.
G -E tubes greater resistance to heat. uniform insulating properties.
PROGRESS IN DESIGN.
For further information, phone nearest office of the G -E Receiving Tube Department below:
EASTERN REGION
CENTRAL REGION
WESTERN REGION
200 Main Avenue, Clifton, New Jersey
Phones: (Clifton) GRegory 3-6387
(N.Y.C.) Wisconsin 7-4065, 6, 7, 8
3800 North Milwaukee Avenue
Chicago 41, Illinois
Phone: Spring 7-1600
11840 West Olympic Boulevard
Los Angeles 64, California
Phones: GRanite 9-7765; BRadshaw 2-8566
73k ogress. is Our Most important 73oduct
GENERAL
ELECTRIC
CIRCLE 14 READERS SERVICE CARD
12.11.207
FREQUENCY STANDARDS
PRECISION FORK UNIT
FREQUENCY STANDARD
TYPE 50
TYPE 50L
Size 1" dia. x 3%" H.* Wght., 4 oz.
Size 3%" x 4%" x 51/2" High
Weight, 2 lbs.
Frequencies: 50, 60, 75 or 100 cycles
Frequencies: 240 to 1000 cycles
Accuracies:Type 50 (±.02% at -65° to 85°C)
Type R50 (±.002% at 15° to 35°C)
*31/s" high
400 - 1000 cy.
Double triode and 5 pigtail parts required
Input, Tube heater voltage and B voltage
Output, approx. 5V into 200,000 ohms
Accuracies:Type 50L (±.02% at -65° to 85°C)
Type R5OL (±.002% at 15° to 35°C)
Output, 3V into 200,000 ohms
Input, 150 to 300V, B (6V at .6 amps.)
PRECISION FORK UNIT
FREQUENCY STANDARD
TYPE 2003
TYPE 2005
Size 11/2" dia. x Of H. Wght. 8 oz.
Size, 8" x 8" x 7U" High
Frequencies: 200 to 4000 cycles
111
*3%" high
400 to 500 cy.
optional
Weight, 14 lbs.
Accuracies:Type 2003 (±.02% at -65° to 85°C)
Type R2003 (±.002% at 15° to 35°C)
Type W2003 (±.005% at -65° to 85°C)
Double triode and 5 pigtail parts required
Input and output same as Type 50, above
Frequencies: 50 to 400 cycles
(Specify)
Accuracy: ±.001% from 20° to 30°C
Output, 10 Watts at 115 Volts
Input, 115V, (50 to 400 cycles)
FREQUENCY
STANDARD
FREQUENCY STANDARD
TYPE 2007-6
TRANSISTORIZED, Silicon Type
Size 11/2" dia. x 31/2" H. Wght. 7 ozs.
Frequencies: 400 - 500 or 1000 cycles
Accuracies:
2007-6 ( ± .02% at -50° to +85°C)
R2007-6 (±.002% at +15° to +35°C)
W2007-6 ( ±.005% at -65° to +125°C)
Input: 10 to 30 Volts, D. C., at 6 ma.
Output: Multitap, 75 to 100,000 ohms
TYPE 2121A
Size
834" x 19" panel
Weight, 25 lbs.
60 cycles, 10 Watt
Accuracy:
±.001% from 20° to 30°C
Input, 115V (50 to 400 cycles)
FREQUENCY
STANDARD
FREQUENCY STANDARD
TYPE. 2001-2
TYPE 2111C
Size 3%" x 4%" x 0" H., Wght. 26 oz.,
Frequencies: 200 to 3000 cycles
Accuracy: ±.001% at 20° to 30°C
Output: 5V. at 250,000 ohms
Input: Heater voltage, 6.3 -12 - 28
B voltage, 100 to 100 V., at 5 to 10 ma.
ACCESSORY UNITS
Size, with cover
10" x 17" x 9" H.
Panel model
10" x 19" x 8%" H.
Weight, 25 lbs.
Frequencies: 50 to 1000 cycles
Accuracy: (±.002% at 15° to 35°C)
Output: 115V, 75W. Input: 115V, 50 to 75 cycles.
j This organization makes frequency standards\i
for TYPE 2001-2
L -For low frequencies
multi -vibrator type, 40-200 cy.
D-For low frequencies
within a range of 30 to 30,000 cycles. They are
used extensively by aviation, industry, government departments, armed forces-where maxi-
mum accuracy and durability are required. t
counter type, 40-200 cy.
H-For high freqs, up to 20 KC.
WHEN REQUESTING INFORMATION
Ai-Power Amplifier, 2W output.
P -Power supply.
PLEASE SPECIFY TYPE NUMBER
American Time Products, inc.
Watch
Telephone: PLaza 7-1430
54
Master
Timing Systems
CIRCLE 35 READERS SERVICE CARD
580 Fifth Ave., New York 36, N. Y.
CIRCLE 36 READERS SERVICE CARD
If you can use custom quality
at commercial prices
-then check on
HUDSON I
4 -stage
service
HUDSON precision quality metal components
are produced by cost -reducing mass
production methods. The HUDSON
production department is equipped
with batteries of standard and special
presses ranging up to 300 tons.
HUDSON performs a wide range of
operations to meet your needs.
STANDARD PRECISION DRAWN INSTRUMENT CASES
Standardized cases include over
1400 different sizes, with both
inside and outside covers, in six
standard metals. Hudson offers
the engineer a range of closures
unequalled in the industry
MIL -T -27A CLOSURES FROM AF TO OA
Cases
and covers now offered by
HUDSON from types AF to OA
inclusive. Immediate shipment
from large stock supplies. Cover
assemblies to MILT specifications also available.
SPECIAL FACILITIES FOR TRANSISTOR CLOSURES
HUDSON'S
newly installed 10 station
automatic presses speed
production on your transistor
caps. Closures for transistors,
diodes and other miniature
components to specifications.
COMPLETE SERVICE ON MU METAL FABRICATION
HUDSON
is now able to supply MU Metal
closures in all standard sizes
and shapes. Stock supply
assures prompt delivery.
Consult HUDSON on all your
electrical alloy requirements.
HUDSON service is
complete ... includes sheet
metal fabrication, spot welding,
heliarc welding and silver soldering. HUDSON designers and production engineers will be happy to
help work out your problems.
HUDSON
TOOL & DIE CO INC
18-38 Malvern Street, Newark 5, New Jersey
Telephone-MArket 3-7584 Teletype-NK 1066
Expert Fabrication in Steel. Stainless Steel, Aluminum. Brass, Copper and MU Metal
Precision Metal Components for Electronics, Nucleonics, Avionics and Rocketry
Handy & Harman Silver Powder and Flake for Electronic Applications
The increased acceptance of silver powder and flake in electronic circuitry
and components has created a demand for a source that can supply these
materials at a consistently high level of quality.
Handy & Harman manufactures silver powder and flake in all types
and forms, for use in formulations on printed circuitry and wiring, re-
sistors, condensers, thermistors, printed terminal strips on glass, ceramics
or plastic laminates, etc.
Among the many forms of silver
and silver alloys manufactured by Handy & Harman are:
Fine silver (wire, strip and foil)
Silver anodes and grain for plating
Silver contact alloys Silver powders
Silver flake, paints and paste Silver
brazing alloys
Silver electronic
If you are working on conductive or resistive coatings where you
require excellent electrical conductivity, Handy & Harman will welcome
the opportunity to assist you in the choice - or discussion of any silver
product that may interest you. Write for Technical Bulletin A-4 on Silver
Conductive Coatings and Bulletin A-5 on Silver Powder and Flake.
Our technical service and field application experience are at your disposal... we welcome inquiries on products and product problems involving
any form of silver.
Your NO.
Source of Supply and Authority on Silver Alloys
solders Silver sintered metals
Silver
Solder -flushed silver alloys
chloride and oxide Coin silver (wire
and strip) Silver bi-metals
56
CIRCLE 37 READERS SIERVICE CARD
97,11P
PLANTS
ATLANTA. CA.
BRIDGEPORT. CONN.
PROVIDENCE. R. I.
CHICAGO, ILL.
HANDY & HARMAN CLEVELAND. OHIO
General Offices: 82 Fulton St., New York 38, N.Y.
DISTRIBUTORS IN PRINCIPAL CITIES
ELECTRONICS
DETROIT. MICH.
LOS ANGELES. CALM.
OAKLAND. CALIF.
TORONTO. CANADA
MONTREAL. CANADA
engineering issue - December 19, 1958
makes jNUTS
with a difference
FLUSH SEATING
* SELF -RETAINING
SELF -TENSIONING
LOW COST
CAREFUL
WORKMANSHIP
It takes a little extra care in the drawing operation to make really reliable
J -nuts in volume but it's well worth the trouble. It reduces internal strains
in the barrel so that DOT J -nuts stand up to working loads considerably better than the average fastener of similar construction.
Available in three thread sizes (5/16"-18 and 24, 1/4-20) and to fit three
ranges of material thickness (.030" to .065"), DOT J -nuts are made of carbon
steel. They hold themselves in place over stamped holes so that preassembly
is practical in cases where the actual bolting operation comes at the end of a
series of other operations.
Full details on request.
CARR FASTENER COMPANY
Division of United -Carr Fastener Corporation, Cambridge 42, Mass.
MAKERS OF
FASTENERS
ELECTRONICS engineering issue - December 19, 1958 CIRCLE 38 READERS SERVICE CARD CIRCLE 39 READERS SERVICE CARD -3-
Zar
!wi.o '47
nitW
,
SPACE:
RAE
Co
SIOW
EYER
Carrier Telegraph
of them all
tne most
Voice Frequency
System
MINIFIED
I0
18 channels
.'3CILI-1-1j4:2PIL.IL:nly 183/4- panel
F iEQUENCY
IIMEgos
keying
ohms, 30 ma.
1. Ccnta:t
range, 220
range,
po'ar, high
polar, high
!ems & impedances:
neutral or
ncutral cr
1J0,COC
THUS RADIO CC
114coRPORATEO
IEW YORK, 14. r
F. S. TONE
0/4118tTER-
ohms, 10
=10% line voltage
(eying irputs,
positive or negative,
positive or negative,
C.p
space
Model 1;
TNcia 211
Model 1;
Type 212
Shift Tone Keyers
Converters,
Frecuency
Shift
Tone
2. DC current
shows 18
1
ma. min.;
ma. min.;
211 Model
Frequency
Tzp shelf
7
ohms, 0.5
contain 9 each
2200
KEYER -Type "dry contacts)
2200
low range,
battery tc mir. low range,%)Its
SHIFT TONE
Next 2 shelves
min.,
',internal
FREQUENCY
42
in
change and
=25°C.
including
all causes
keying speed
oulses,
pulses,
cpi total fcr
level.
dependent on
3. DC vc'tageminimum.
below output
Networks =2
Bandwidth
than
50
db
ohms, 1 dolt
Standard
number of other
3315 cps
are *nue
Stabilit.:
with any
change.
the !Ole channels from 425 to
crde-.
Frequency temperature harmonics
special
paralleled
of
relay are
Ma' be
from 25=C. Content All
available on
VF carrie
change -aver
All standard and bardridths
ohms, unbalanced.
Harmonic
into 600audio
one automatic
FrequencLes:
system
frequencies
supplies and
Output
Otter
5 dom maxirrun,the same
power
requirements. & impedance: frequencies ir
Two transistorized
different
Outpui Level
15
MA
lumber of otter
operating on 14 V DC
;12 Model 1
With any
Keyers
mounting sbe,f
Requirements:
paral'eled
of
each
10173"
deep.
Powell
keying speed
CONVERTER-TypoNay be
the -ear
SHIFT TONE
moun_ed on TA" wide x 51/4" high x
unbalarced
dependent on
FREQUENCY dbm into 600 ohms,
audio system. cps. Bandwi:th
Dime esions:
volts miress
the same
to
to 3313
211
pulses ±-10
-4E dbmfrecuercies
P
from 425
Radio Type
loae. Polar
special orde7.
inter& impedance:different
channels
Northers
eauipped with
telegraph VF available on
olvn external such as
Innis Level operating on
a 200C
are already
when so desi-ea.
converters,
All standard and bwatvidths
converters
maximum across
relay a e
Printers which 212 Converte
voltage-tc-current
of 10 volts
change -over
Inpet Frequencies:
the Typo
Other frequenc.es
currents.
appropriate
termiaa% of
voltage pulses drives
operating
automatic
req.:irements.
one
Neutral DC
output
accomtelepo.nter
load. Output
stipples and
the normal
is available
Output: ohm external
provides pr
power
drecily from
a noo
a helf assembly
Relay, which be driven
transistorized
MA. Two
these units,
relays may
Transistor
number of
14 V DC at 33 shelf.
nal repeating
mounting a
mountirg
rack
Requirements:
of
en')
York 11, ft Y.
deep.
For
Power
data.
the rear
Street, New
mounted on 17/e" x 51/4" x 113/4" heigho of 51/4.
technicc-I
W. ,T2nd
in a panel
W-ite for complete
Dimensions, (9) units
modating nine
Equipment
On_ario
Ottawa,
Communications
-e'
CO.,
RADIOin Quality
Pace -Setters
Ltd., 1950
NORTHERNNortkerr
Mfg. Co.,
Radio
In Canaia:
*illustrated:
INC. 147
Bank St..,
width,
86.84% of actual
Billings Brirge,
77.43% of actual
height.
NEWS
about Silicon Devices
Now .. . Ratings > 120 kw
for rectifiers made with
DU PONT SILICON
compact units can eliminate need for dc lines
A wide range of rectifiers made with
Du Pont, pioneer and first com-
Du Pont Hyperpure Silicon-with
ratings from a few microwatts to>
mercial producer of silicon, supplies
120 kw per cell-are now available.
Manufacturers cite efficiencies up
to 99% in units operated at 60 cps,
operation at temperatures from -65°
manufacturers of rectifiers, diodes
and transistors with several grades
of Hyperpure Silicon. (Du Pont does
not produce devices.)
Write today for our free booklet
to 175°C., rectification ratios as high
containing full data on Du Pont
as 10 million with negligible reverse
of special de lines when these com-
Silicon: E. I. du Pont de Nemours
& Co. (Inc.), 2420 Nemours Bldg.,
Pigments Department, Wilmington
pact rectifiers are used in bridges.
98, Delaware.
conductance, and the elimination
41 POO HYPERPURE SILICON
u, $, .AT. Off
Better Things for Better Living
.
through Chemistry
-4-CIRCLE 40 READERS SERVICE CARD
CIRCLE 41 READERS SERVICE CARD December 19, 1958 - ELECTRONICS engineering issue
TUNG-SOL POWER TRANSISTORS IMPROVED
THREE WAYS BY:
NEW
SEAL
Tung-Sol's new true cold -weld seal represents a major
advance in transistor technology. An exclusive
Tung -Sol development, cold -weld sealing increases
TO -3 outline package efficiency and brings designers a
threefold bonus in over-all transistor performance.
Improved thermal qualities. The cold -weld process
produces a hermetic, copper -to -copper seal and makes
possible a 100% copper transistor with thermal properties superior to previous high power types.
Improved reliability. Cold -weld encapsulation eliminates heat damage, "splash", and heat -caused moisture
that can impair transistor performance.
Longer efficient life. Even through temperature fluctuations that cause "breathing", the cold -weld seal stays
vacuum -tight, moisture-proof-result of actual integration of the copper molecules during sealing.
Tung -Sol power switches with the new cold -weld seal
withstand the most rigid combination of tests given any
transistor-the 100 psi "bomb" immersion test and the
critically sensitive Mass Spectrometer leak test. Further, they meet all military environmental requirements. For full data on the improved Tung -Sol. types
. . . to fill any transistor need, contact: Semiconductor
Division, Tung -Sol Electric Inc., Newark 4, New Jersey.
IMPROVED SPECIFICATIONS OF TUNG-SOL
COLD -WELDED HIGH POWER TRANSISTORS.
THESE TUNG-SOL HIGH POWER (TO -3 OUTLINE)
TRANSISTORS FEATURE THE NEW, COLD -WELD SEAL
r
Type
2N378
2N379
2N380
2N459
BVCES
BVCEO
hFE
hFE
(VBE= +1.0v)
(IB=0)
(IC=1.0 A)
(IC=2.0 A)
Volts (Min)
Volts (Min)
-40
-80
-60
-20
-40
-30
-60
50
50
70
50
30
30
-105
Collector Dissipation (4) 25°C*.. .50 Watts
Collector Dissipation @ 55°C*.. .25 Watts
1.2° C/Watt Max.
Thermal Resistance
ICBO Q VCB= -25v T = 25°C.. .0.5 Ma Max.
las0
VCB=-25v T=85°C.. .7.5 Ma Max.
-55 to +100°C
Storage Temperature
50
30
ELECTRONICS engineering issue - December 19, 1958
Mounting base temperature
TO -3
CIRCLE 42 READERS SERVICE CARD
61
WIRE
sx
PRODUCTS
SODEPON Oly/oft coated ,codetex)
WINDS
EASIER
RESISTS
SOLVENTS
SOLDERABLE,
TOO!
Low co -efficient of friction provides "lay -in" qualities similar to
The chemically resistant outer jacket removes any danger of magnet
No stripping. Solderable at low
temperature without damage to
tried and true Nyform (nylon
wire damage by severe varnish
copper conductor.
coated Formvar).
or compound treatments.
SX Soderon is available in sizes 10-46 AWG, inclusive.
Packaged on spools, reels, pails and "Magna Pak".®
Wire designed with the future in wind .
EsseA "field ifesied" Magnef Wire
MAGNET WIRE DIVISION, Essex Wire Corp., Fort Wayne 6, Indiana
Manufacturing Plants: Birmingham, Alabama; Anaheim, California; Fort Wayne, Indiana; Hillsdale, Michigan
NATIONAL NETWORK OF WAREHOUSES AND SALES OFFICES .
62
CIRCLE 43 READERS SERVICE CARD
.
. CALL YOUR LOCAL "ESSEX MAN"
December 19, 1958 - ELECTRONICS engineering issue
Selection of
the Right
Power Transistor
made easy
111}.".4120-W TT GROUP
Ty
s Available
LT -5028 I LT -5034
0
60
CBS -HYTRON
LT -5027
LT -5026
LT -5034
CD
40
5 Watts
Output
20
Diamond
"IliaTr"
Female
LT -5039
ET -5024
LT -5030
LT -5038
LT -5048 Diamond
Male
LT -5047
LT -5023
LT -5029
LT -5037
LT -5046
Female
LT -5022
2N157
LT -5045
LT -5021
LT -55
2N158
2N157A
LT -5036
LT -5035
LT -5043
Diamond
Male
Female
100V
120V
30V
MOTOR
LT -5051
LT -5025 'LT -5031
2N156
Input
400 c.p.s.
LT -5042
LT -5033' LT -5041 LT -5050
LT -5032 LT -5040 LT -5049
LT -5044
iv
Minimum Breakdown Voltagef
30 -WATT GROUP
Types Available
100
0 GBS-HYTRQN
LT- 5034
60
30
FOR EXAMPLE:
160
iD
80
40
LT -5086
LT -5058
LT -5067
LT -5076 LT -5085
LT -5057
LT -5066
LT -5075
LT -5084
LT -5056
LT -5065
LT -5074
LT -5083
LT -5055
LT -5064
LT -5073
LT -5054
LT -5063
LT -5072
LT -5081
LT -5053
LT -5062
LT -5071
LT -5080
LT -5052
LT -5061
LT -5070
30V
60V
80V
Diamond
Male
Female
Diamond
Male
LT -5082 Female
Diamond
Male
Female
LT -5079
100V
LT -5114
LT -5123 Diamond
LT -5096
LT -5105
LT -5095
LT -5104 LT -5113
LT -5122
LT -5094
LT -5103
LT -5112
LT -5121
LT -5093
LT -5102
LT -5111
LT -5120
LT -5092
LT -5101
LT -5110
LT -5119
LT -5091
LT -5100 LT -5109
LT -5118
LT -5090
LT -5099
LT -5108
LT -5117
LT -5089
LT -5098
LT -5088
LT -5097
LT -5107 LT -5116
LT -5106 LT -5115
30V
60V
'Minimum large -signal -current gain: 40 -watt
group at 1.0 A, 30 -watt group at 0.75 A,
20 -watt group at 0.50 A.
'Minimum breakdown voltage, collector to
rent. "Current Gain" of 43 is required
. . .
LT -5077
80V
Male
Female
Diamond
Male
Female
Diamond
Male
Female
100V
Minimum Breakdown Voltagef
Voltage" of 60.
source volts gives 300 -ma. collector cur-
LT -5068
Types Available
48. Choose "Minimum Breakdown
put of 5 watts divided by .707 times 24
LT -5087
LT -5059
40 -WATT GROUP
O You may need 5 watts output - 2.5
O Input signal current, 7 ma. Power out-
LT -5069 LT -5078
Minimum Breakdown Voltaget
Need a transistor for an airborne servo amplifier?
Here's how easy it is to select the transistor with
optimized characteristics at minimized cost:
watts per transistor. At 70°C maximum
base mounting temperature, this equals
a 10 -watt rating at 25°C standard. Pick
"20 -Watt Group."
Source voltage, 24 volts. With inductive
load, peak -to -peak volts approximate
LT -5060
base with emitter open.
#Five packages: diamond, female industrial
with solder lugs or flying leads, and male industrial with solder lugs or flying leads.
More reliable products
through Advanced -Engineering
use 60.
O For a convenient, plug-in standard
package, you may want the "Diamond"
version.
O That is it . .. you have picked the CBSHytron LT -5034.
Use these same convenient tables iri selecting the exact PNP
germanium power transistors you need from CBS-Hytron's
most comprehensive line: 3 power groups . . . 6 packages . . .
over 100 EIA, military and special types.
And for complete data on the types you choose, write for
Bulletin E-288. Ask our Applications Engineering Department for any special assistance you may want.
ELECTRONICS engineering issue - December 19, 1958
CBS
semiconductors
CBS-HYTRON, Semiconductor Operations, Lowell, Mass.
A Division of Columbia Broadcasting System, Inc.
Newark. N. J..
Sales Offices: Lowell, Mass., 900 Chelmsford Street, GLenview 4-0446
32 Green Street, MArket 3-5832 Melrose Park. III.,1990 N. Mannheim Road, EStebrook 9.2100
Los Angeles, Calif., 2120 9. Garfield Avenue, RAymond 3-9081.
CIRCLE 44 READERS SERVICE CARD
5,000
digital
instruments
now in use!
111:10E1011
DC INSTRUMENTS-A four or five digit Bridge Module
combined with a Power Unit Module provides proven
accuracy of 0.01%. The basic 100 microvolt sensitivity can
be extended to 1 microvolt with the new low level DC
Amplifier Module.
AC INSTRUMENTS-True flexibility and user economy
because of the proven E -I modular concept. For AC meas-
urements with 0.1% accuracy, add the AC Converter to
your DC instrument. No modifications-merely plug in
cables and put the AC/DC Digital Instrument to day -in
day -out use.
spill 4 4
DATA HANDLING SYSTEMS-Expand your basic instruments at anytime to provide for measurement of volt-
41
age ratios, ohmic resistance, from single or multiple sources,
with E -I Ratiometer, Ohmmeter and Scanner Modules.
OUTPUT CONTROL-In addition to the illuminated
read-out for operator surveillance, E -I systems provide con-
111131111116
tact closures which completely define the measurement,
and the signal channel. E -I manufactures a complete series
of Print -Control Modules to process data for series or parallel entry in printed tape, punched tape, punched card and
electric typewriter data recorders
41
'
"Ix.,
STORAGE, TIME, PROGRAM-The E -I line includes
off -the -shelf modules for data storage, time base and programming functions.
I
2 :2 3'214
TOTALLY TRANSISTORIZED
for consistent performance, relia-
bility, and accuracy. Ed equipment
and systems reflect the maturity
of engineering and production
know-how of the leader in the digital instrumentation field.
iiii The complete line
of digital instruments
WRITE FOR COMPLETE SPECIFICATIONS
Electro Instruments, Inc.
3540 Aero Court, San Diego 11, California
64
CIRCLE 45 READERS SERVICE CARD
CIRCLE 46 READERS SERVICE CARD -->
leo/HA?.
NO LEAKAGE
plus electrical continuity
with no arcing or burning !
These wave guide seals, developed by Parker Seal Company offer
leak -proof effective sealing while affording electrical continuity
with provision for prevention of R/F leakage and interference.
In addition they afford considerable savings by requiring simple, less
expensive flanges and quick easy assembly. They assure visual installation
inspection and are re -useable.
r--Series 5600 fits all EIA (RETMA) L -band guides WR90
thru WR2300. Others for X -band guides, as well as specials.
BEFORE FASTENING
For complete details send for catalog.
pCrker
AFTER FASTENING
J.
SEAL COMPANY
A DIVISION OF
CULVER
formerly Franklin C. Wolfe Co.
I-_111111 ---1--011M--1
parker -Hannifin CORPORATION
CITY,
CALIFORNIA
*
i
MEETING MIL -T -19500A
Military Specification For Transistors
Stringent military requirements de-
mand that transistors do not fail
completely immersed in water at
85C for 15 seconds and, immediately
thereafter, in water at 0°C for 15
is
transistor is rigidly fastened on a vibra-
The tests described below are per-
seconds.
formed on all General Transistor
types to insure continuous, high
5. Moisture resistance test-The
tion platform and is subjected to a
simple harmonic motion at a single
frequency between 40 and 100 cps,
for 32 hours in each of three orienta-
transistor is subjected to varying tem-
tions, with a constant peak acceleration
quality performance. Every production lot is sampled on a daily basis.
The criterion for these tests is MILT -19500A, Military Specification for
perature and humidity cycles: 25°C
of 10G.
with 50% relative humidity, 65°C with
9. Salt spray (corrosion) test-
90-95% relative humidity, and then
After 100 hours of salt spray, the transistor is washed, brushed, air blasted,
Transistors.
humidity. One cycle is 8 hours in duration, and the test consists of 10 cycles.
in operation.
Prior to, and upon completion of
back
to
25°C
with 50% relative
and then permitted to dry for 24 hours
at 40°C. The transistor is then examined
for any destructive corrosion or loss of
plating which interferes with mechanical
or electrical performance.
each of the mechanical tests
below; collector cutoff
current, emitter cutoff current, and
described
D. C. current gain are measured and
10. Lead fatigue-Any two
General
Transistor's
recorded. The end point valves of
these critical electrical parameters
must not exceed the limits as set
forth in the applicable military
JETEC 30
Case
con-
secutive leads on each transistor are
selected. A pull of 16 ounces is applied
specification.
to each lead, for three 90° arcs of the
case. The transistor is then examined
for broken leads.
1. Physical dimensions-The tranis examined to verify that all
is stored at a temperature of 85°C for
1 1. Storage life test-The transistor
sistor
physical dimensions are as specified.
a period of 1000 hours. During this
2. Lead solder test-The leads of
6. Shock test-The transistor is subjected to five blows from each of four
test, measurements are made at inter-
transistor are immersed for 10
different orientations, each with an ac-
vals of 0, 250, 500 and 1000 hours.
seconds in molten solder, at 230°C, to
celeration of 500G and a duration
12. Operation life test-For
a point of 1/16 of en inch from the
of 1 ms.
period of 1000 hours and at a tem-
case of the transistor.
7. Centrifugal acceleration test
perature of 25°C, the transistor is sub-
3. Temperature cycling test-The
-The transistor is restrained by its
case. A centrifugal acceleration of
20,000G is then applied to the transistor for one minute in each of three
jected to the operation life test. During
this test, measurements are made at
intervals of 0, 250, 500 and 1000
the
transistor is subjected to five tempera-
ture cycles: -65°C minimum temperature for 15 minutes, room ambient temperature for 5 minutes, and 85°C
different orientations. The acceleration
maximum temperature for 15 minutes.
is then gradually decreased to zero.
4. Glass strain test-The transistor
8. Vibration, fatigue test-The
a
hours.
Write for transistor Application Note
3-58 "The Effects of Long Term Aging
on Computer Transistors."
GENERAL TRANSISTOR CORPORATION
91-27 138th PLACE JAMAICA 35, NEW YORK
CN
66
CIRCLE 47 READERS SERVICE' CARD
December 19, 1958 - ELECTRONICS engineering issue
Naugatuck VIBRIN
LIQUID POLYESTER RESINS
NEW POTTING COMPOUND
COSTS YOU LESS!
Compare these costs!
GENERAL-PURPOSE
POLYESTER
NEW
VIBRIN X-I088B
Specific gravity
1.12
Specific gravity
1.04
Lbs. per drum
500
Lbs. per drum
464
Cost at $.34/1b. $170
Cost at $.34/1b. $157.76
Saving per drum $12.24
Equivalent saving
per pound
$.0245
New VIBRIN X -1088B is a proven coating and potting compound that offers all these cost.
saving features:
costs less to use than general-purpose
gives low shrinkage and low exotherm
polyester. Lower specific gravity means less
cost per volume, less cost per part
costs far less than epoxies
permits controlled gel and cure
reduces cure time considerably
low viscosity gives high filler capacity with
ease of impregnation
Need unusual heat resistance? VIBRIN I36A gives excellent protection at sustained temperatures of 500° F -intermittent service up to 1000° F!
Whatever your product, whatever the potting compound you now use, better look into VIBRIN'
potting resins thoroughly. See for yourself how you'll save!
United States Rubber
1250 Elm Street
Naugatuck Chemical Division Naugatuck, Connecticut
Rubber Chemicals Synthetic Rubber Plastics Agricultural Chemicals Reclaimed Rubber Latices
DIST. OFFICES: Akron Boston Gastonia Chicago Los Angeles Memphis New York Phila. CANADA: Naugatuck Chemicals, Elmira, Ont.
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 48 READERS SERVICE CARD
CABLE: Rubexport, N.Y.
67
The G -E Power Tube Microwave Laboratory
is located at Stanford Industrial Park, Palo
Alto, California where it was one of the Park's
pioneer installations. Its scientists and engi-
neers have the advantage of technical exchange with the faculty and research staff of
Stanford University, as well as extensive op-
portunities for graduate training. Constant
technical liaison is also maintained with
General Electric's own Research and General
Engineering Laboratories, Schenectady, N. Y.
HIGH -POWER KLYSTRONS WITH WIDE TUNING
ARE DESIGN GOALS OF GENERAL ELECTRIC
The Microwave Laboratory of the G -E Power Tube Department
at Palo Alto, California, is placing major emphasis on the development of a line of advanced -design, high -power klystrons to meet the
requirements of radar detection systems and missile guidance systems, as well as navigational equipment of the future.
The requirements for greater operating flexibility, longer life,
and higher reliability are being satisfied through the development
of klystrons with wider tuning ranges and higher tuning linearity
sufficient to enable single -knob control. To achieve wide -range tuning, an exclusive cavity and tuner are employed, consisting of a
ring -type tuning vane mechanically coupled to a high -precision
single -knob tuning control. Multiple cavity designs and stagger tuning techniques in combination permit broadband operation. The
single -knob control permits extremely rapid tuning, while the high
tuning linearity permits precise resettability.
Klystron development is only one of a broad range of microwave
activities being conducted at the General Electric Microwave Laboratory. Applied research, advanced development, and prototype
design are conducted in all areas of microwave tubes and microwave
techniques. Technical inquiries pertaining to advanced microwave
tube development are invited. Power Tube Department, General
Electric Company, Schenectady, New York.
Professional opportunities available for electron tube production, engineering,
and scientific personnel. Inquiries are invited.
The extensive program of the General Electric Microwave Laboratory on
advanced microwave components and techniques includes the following:
CW klystron amplifiers
Super -power klystrons
Voltage -tunable oscillators
High -power duplexers
Microwave filters
Pulse klystron power amplifiers
High -power pulsed TWT amplifiers
Medium -power CW TWT amplifiers
Low -noise, broadband TWT amplifiers
Frequency multiplier TWT amplifiers
RANGES AND HIGH LINEARITY
MICROWAVE LABORATORY
A Typical of a family of
high -power klystrons under
development is this 1 -KW
CW power output tube
(solenoid and cover removed) which tunes over
a 1000 me range at X -band,
with 40 db gain. All tubes
in this family are of rugged,
metal -ceramic construction
to meet performance stand-
ards of military specifications, and employ an
extremely long -life, single -
knob tuner. Other designs
include high -power tubes
for L, S and X bands.
Controlled temperature
processing of new materials contributes towards
improvement in high -emis-
sion density cathodes for
high -power beam tubes.
L. to R, J. F. Kane, consult-
ing engineer, with associates J. N. Lind, D. W. Latshaw and J. P. Fitzpatrick.
In foreground, laboratory
technician Paul A. Smith.
Progress- Is Our Most Important Product
GENERAL(
ELECTRIC
No. 1 solution to dielectric problems -
PRECISION STEATITE
by GENERAL CERAMICS
G -C steatite solves all of these problems...economically
0 Widely varying ambient temperature
0 Severe mechanical or thermal shock
0 Permanence of dimensional accuracy
Intricate shapes to close tolerance
G -C electrical ceramics are news! Offering a far higher
degree of dimensional accuracy than ever before possible,
precision dielectrics provide a far greater design latitude
in all types of electronic and electrical equipment. These
new high accuracy ceramics are another example of
0 Efficient compaction of physical size
0 Low electrical loss at high frequency
0 High dielectric and mechanical strength
0 Extreme immunity to environmental conditions
General Ceramics progressive manufacture . . . better
products at lower cost through advanced research and
improved methods of production. Why not ask for all the
facts on precision electrical ceramics, now! Write General
Ceramics Corporation, Keasbey, New Jersey, Dept. E.
GENERAL CERAMICS
Industrial Ceramics for Industrial Progress... Since 1906
Os
,FERRAMIC CORES
\'
FERRAMIC
MAGNETIC
"ADVAC" HIGH
MAGNETIC CORES
MEMORY PLANES
TEMPERATURE SEALS
4 -CIRCLE 50 READERS SERVICE CARD
CIRCLE 51 READERS SERVICE CARD
SOLDERSEAL TERMINALS
Top-ranking engineer giving a promising newcomer some practical
information about one of AC's high altitude pressure chambers.
How far can an engineer go at AC?
That depends on your aspirations. Do you want long-range security?
Diverse assignments? Professional status? Intriguing location? A top
management position? It's possible to find all of them at AC-the Electronics
Inertial Guodance Systems
Afterburner Fuel Controls
Bombing Navigational Computers
Gun -Bomb -Rocket Sights
Gyro -Accelerometers
Gyroscopes Torquemeters
Division of General Motors. One thing is sure-if you are a graduate
engineer in the electronic, electrical or mechanical fields-you can go
places at AC, because AC is going places. AC is in the instrumentation
business. And there are virtually no limits to the projects and problems
-both military and commercial-to which AC can apply its top-flight
personnel and world-wide facilities. Today AC builds the AChieverinertial guidance system for some of the world's leading missiles-plus
a wide variety of other electro-mechanical, optical and infra -red devices.
Speed Sensitive Switches and
Tomorrow AC may build inertial systems for commercial aircraft and
Sensors Vibacall Skyphone
ships at sea as well as automotive electronic components. This is the kind
of opportunity you should look into-today. Just write the Director of
Scientific and Professional Employment: Mr. Robert Allen, Oak Creek
Plant, Dept. A, Box 746, South Milwaukee, Wisconsin; or Mr. M. Levett,
Dept. A, 1300 N. Dort Highway, Flint 2, Michigan. It may be the most
important letter of your life.
AC SPARK PLUG ii- THE ELECTRONICS DIVISION OF GENERAL MOTORS
ELECTRONICS engineering issue -December 19, 1958
71
PRESENT
SUBSCRIBERS
an exciting new series of
panel instruments
Please Note!
LOW COST!
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December 19, 1958 - ELECTRONICS engineering issue
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ELECTRONICS engineering issue - December 19, 1958
73
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December 19, 1958-- ELECTRONICS engineering issue
electronics
engineering issue
DECEMBER 19,
1958
Demonstration models of stellarator. Figure -eight shape, left, overcomes effect of diminishing magnetic -field gradient in
dissipating plasma stream. Racetrack, stellarator right, uses special helical field windings, achieves the same result
Our Stake in
Thermonuclear Power
Experiments aimed at achieving controlled thermonuclear reactions use
components like those used in high -power transmitters; also microwave
interferometers and other instruments. Plasma studies may blaze a trail to
more efficient industrial -type gas tubes
By JOHN M. CARROLL, Managing Editor
LasT
the press got its first
close look at Project Matterhorn. This is part of the Atomic
Energy Commission's recently declassified Project Sherwood, code
name for AEC activities in controlled thermonuclear reactions.
Project Matterhorn, being car-
way in the United Kingdom and
the USSR.
Projects have been
started in Sweden, France, Germany and Canada.
Scope of the Work
By controlled thermonuclear re-
actions man is trying to harness
efforts in controlled thermonuclear
research. Other projects are underway at Los Alamos, Livermore and
the tremendous energy released in
the hydrogen bomb. The thermonuclear reaction or nuclear fusion
makes use of deuterium, a heavy
isotope of hydrogen. A deuterium
atom consists of a proton and
Oak Ridge. Smaller efforts are in
progress at various colleges and
universities including New York
University. Projects are also under
orbital electron. In one of the three
thermonuclear reactions two deuterons or deuterium nuclei, unite to
ried out at the James Forrestal
Research Center, Princeton University, is one of four major U. S.
neutron in the nucleus, and one
ELECTRONICS engineering issue - December 19, 1958
form helium -3 and a neutron. This
reaction is accompanied by a release of energy.
In a second thermonuclear reaction two deuterons combine to form
a tritium nucleus and a proton.
Tritium is another isotope of hydrogen, which has two neutrons in
its nucleus. While deuterium is not
radioactive and is found in water,
tritium is radioactive with a halflife of about 12 years and does not
exist in nature.
In the third thermonuclear reaction a deuteron combines with the
tritium nucleus to form helium -4
and a neutron, again with release
of energy. Thermonuclear reactions
75
peratures required for thermonuclear reactions. At high temper-
TO FIRING CIRCUIT
atures, the deuterium atoms are
stripped of their electrons ; the resulting assemblage of protons and
The divertor indicated in Fig. 2
is used to skim off the outer layer
of ionized gas to reduce contamination of the plasma.
Ohmic Heating
electrons is known as plasma, called
by some the fourth state of matter.
The second function of the stelAll this is of interest to electronic larator is to heat the magnetically
engineers for two reasons: a great confined gas to thermonuclear temdeal of electronic equipment is used perature. Temperatures of 100 in creating the environment in million degrees Centigrade have
which it is hoped that thermo- not yet been achieved and the push
111
TO FIRING CIRCUIT
FIG. 1-Charging and firing circuits for
model B-65 Stellarator
are of interest, not only because of
the tremendous energy released but
also because the final reaction byproducts need not be radioactive.
Furthermore, the raw material,
deuterium, is relatively common in
contrast with the rather scarce
fuels required in nuclear fission
reactions.
So far thermonuclear reactions
have been achieved only in the
hydrogen bomb and in the sun and
stars. The thermonuclear reactions
occur only at temperatures of about
one hundred -million deg C.
Stellarators
At Matterhorn, researchers are
trying to achieve controlled thermo-
nuclear reactions by use of stellarators. A stellarator consists of
an evacuated tube in the form of
either a figure 8 or an oval. Deuterium gas at low pressure is in-
nuclear reaction may take place,
and also in measuring the results
of the experiments. Secondly work
with plasmas is providing a better
understanding of electrical conduction in gas. This knowledge may be
applied in the design of improved
gas -filled electron tubes for industrial use and in the development of
new electronic devices using plasma.
Confining Field
towards these temperatures is one of
the main efforts in thermonuclear
research. One method of heating
the plasma is ohmic which entails
passing a high electrical current
through the plasma stream. Ohmic
heating uses electronic charging
and firing circuits. As in the magnetic confining field circuit, a bank
of capacitors is discharged through
a winding. In the ohmic heating
circuit, a winding about an iron
To confine the plasma, fields of core constitutes the primary of a
the order of 50,000 gauss are re- transformer. The tube of ionized
quired. In an oval -shaped or race- gas in itself is the step-down transtrack stellarator there are two sets former secondary winding. In one
of magnetic confining field wind- stellarator the ohmic heating power
ings ; the main windings and a set amounts to about 450 volts at 3,000
of secondary helical windings. The amperes.
helical windings prevent the plasma
stream from dissipating itself because of a diminishing gradient of
magnetic field extending outward
from the center of the torus. In one
stellarator a current of 10,000 amp
at 24,000 volts is used to create the
Magnetic Pumping
The ohmic heating method will
only raise the ionized gas temperature to about a million degrees
Centigrade.
A
technique
called
magnetic pumping is being used
magnetic confining field.
An electronic charging and firing
to achieve additional heating. Mag-
in a so-called magnetic bottle by
and current used in this circuit. The
the magnetic confining field. The
magnetic bottle must be used because no physical container is able
to withstand the extreme tem-
current is pulsed at the rate of 1
pulse per minute. The current pulse
nately squeezed and allowed to
expand. A radio -frequency field is
applied at one or more points
has a useful length of about 1/10
around the tube of gas. The r -f
sec.
field
jected into the tube and is confined
netic pumping makes use of ion
circuit as shown in Fig. 1 can be cyclotron resonance. By this techused to supply the necessary voltage nique the plasma stream is alter-
alternately compresses and
Table I-Characteristics of Stellarators
Model
Vacuum System
B1
2 in. tube
450 cm. length
Electronic charging and firing; Electronic charging and firing
30,000 gauss
None
13:;
2 in. tube
252 in. length
Electronic charging and firing;
Electronic charging and firing
Will use magnetic pumping
1305
.1 in. tube
207.1 in. length
Electronic charging arid firing;
22,000 gauss
Electronic charging and tiring
12 me system; 1 megawatt average power, 10 ndllisec pulse
ETUDE
1.9 in. tube
260 cm. length
D -c operated
8,000 gauss
Electronic; 30 kw push-pull None
amplifier: 60-100 pps
Electronic charging and tiring
Electronic charging and firing Yes
B66
(under const)
C
8 in. tube
10 ft.. length
76
Magnetic Confining Field
50,000 gauss
Ohmic Heating
Magnetic Pumping
Motor generator, electronic Electronically programmed
4.
parallel 15030's delivering
output control; 50,000 gauss
6 parallel 15030's delivering 28 megawatts, can go to 50
:11,000 amp at 5 kv to plasma megawatts
December 19, 1958 - ELECTRONICS engineering issue
Charging circuits for s ellarator use mercury vapor rectifiers,
right foreground, and ignitions, left rear
Master oscillator -driver of test generator delivers 57 kw average
power during pulses
expands the gas. This action fur- watts at 2,000 volts. It consists of a 15030's delivering a total of 34,000
ther increases the temperature of master oscillator and driver oper- amp at 5 kv to the plasma.
For magnetic pumping the C
the plasma. One magnetic pumping ating on 250 kilocycles with an
stellarator
will use 4 parallel 1530's
average
pulse
power
output
of
57
circuit uses an 8-mc r -f generator
delivering a total of 28 megawatts.
By adding tubes, magnetic -pumptype A-15030 superpower beam ing circuit output can be increased
to 50 megawatts. The magnetic
triodes.
One important parameter in pumping will have three frequency
thermonuclear studies is the elec- ranges : 30 to 100 kc supplied by a
tron density of the ion stream. spark gap ; 100 kc to 2 mc ; and 15
Electron density is measured by a to 40 mc. The last two will be supmicrowave interferometer. This plied by electron tubes.
instrument measures the phase
Future
shift of a microwave beam passing
Construction
of the C stellarator
through the plasma stream. With
being
undertaken
by C Stelis
reincreased plasma densities
searchers have had to go higher larator Associates, an organization
and higher in microwave interfer- jointly operated by Allis-Chalmers
ometer frequency. In some experi- and Radio Corporation of America.
ments they are now using a 75 Estimated cost of the C stellarator
is $35 million of which only $8
kilomegacycle interferometer.
million is earmarked for land and
This drives the final
that delivers a 10 -millisecond pulse
kilowatts.
with an average power during the
amplifier consisting of two RCA
pulse of one megawatt.
A
Test Equipment
radio -frequency generator,
used to test components to be used
in experiments, delivers 14 mega -
C
Steliarator
buildings.
Although no one has thus far
The most ambitious undertaking yet at Project Matterhorn is demonstrated the feasibility of conconstruction of the so-called
C
stellarator. See Table I. This unit
will use a race -track shaped, 8 -in.
diameter vacuum tube 40 ft. long.
The magnetic confining field will be
50,000 gauss. It will be supplied
HELICAL
WINDINGS
CONFINING
FIELD
WINDINGS
FIG. 2 --Model B-65 stellarator indica-
ing major system components
trolled
thermonuclear
reaction,
scientists feel convinced that it is
possible. For our own industry the
project provides a small but important market for instruments and
electronic components. But even
by a motor generator system cap- more, these experiments give betable of delivering 4.3 megawatt of ter understanding of ionized gases
peak pulse power. The motor - which will be important in design
generator system will be electronic- of improved industrial tubes.
ally controlled.
Ohmic heating for the C stellarator will be electronically programmed. It will use 6 parallel
ELECTRONICS engineering issue - December 19, 1958
Experimental technique will also
aid in design of higher powered
transmitters for communications
and industrial use.
77
Radar communications countermeasures simulation equipment in operation. Multitarget
generator producing large targets with antenna pattern simulator controlling basic i-f
signal of high power
Screen pattern simulates noise jamming
from high -intensity source
Electronic Simulator Gives
ARIOUS jamming and deception
techniques used against radars
can be simulated by the equipment
to be described. Basic operation of
the simulator is to furnish a 30 or
60-mc carrier output which can be
connected to the receiver i-f strip
of a radar set to simulate received
signals. The carrier can be amplitude or frequency -modulated by
sine -wave, square -wave, sawtooth
or noise waveforms and pulse modulated by pulses of adjustable rate,
duration and pairing. Also available are 30 and 60-mc superregen-
erative noise sources. They can be
amplitude and pulse modulated by
the previously mentioned waveforms.
A program generator is used primarily with radars having ppi pres-
entations. Two simulated targets
furnished can be controlled manu-
in azimuth, range and size.
One of them can be moved autoally
matically in any desired manner by
a cam -operated program. Time delayed and random targets are
Table I - Antenna RPM-PRF
-Target Width Time
Antenna
rpm
6
12
18
30
45
60
;78
Radar
pps
200
400
600
1000
1500
2000
One deg of
scan in
millisec
28
14
9.3
5.6
3.4
2.8
also available in the equipment.
A pulse modulator is available
for use against tracking radars. It
furnishes two simulated target
pulses with various types of modu-
TARGET FEEDBACK
SYNCHRO
IN
MANUAL
r
TARGET
TRIG
PULSE
IN
SYNCHRO
GEN
TARGET OUT
UNCAL
VIDEO
OUT
TRIGGER
TRIG PULSE MONITOR
lation, range variation and relative amplitude control. Output is a
pulse -modulated 30- or 60-mc carrier.
PROGRAM TARGET
TARGET
GEN (NO.1) OUT
An L -band (1,100-1,400 mc, 5-w
output), an S -band (2,600-3,400 mc,
2 w) and an X -band (8,500-10,000
mc, 60-100 mw) unit are provided.
TARGET
GEN (N0.21
Each contains facilities for amplitude and pulse modulation by external waveforms and for frequency sweeping with an internal
oscillator or external
waveform generator. For the
L -band unit, frequency sweeping up
to 100 mc is available; for S -band,
sine -wave
200 me and for X -band, narrow band f -m from an external source
is included.
An antenna pattern simulator
VIDEO
MONITOR
SYNCHRO OUT
PROGRAM
-
TARGET
OUT
CAL
TRIG PULSE
FLIGHT
TARGET
GEN
MIXER
VIDEO
OUT
TARGET
OUT
SYNCHRO
RANDOM
TARGET
GEN
TARGET
OUT
FIG. 1-Block diagram
of
multitarget
generator for countermeasures
The targets and target groups can
also be varied manually or automatically in range and azimuth.
A target mixer provides individual amplitude control of target
pulses received from each generat-
consists of a cam -driven variable
attenuator which can be connected
to the i-f output of the basic unit
or pulse modulator. It can be connected also to the synchro system
of the radar set being used to produce a variation of output to simulate antenna directivity.
vides calibrated attenuation of the
combined target -pulse output. Uncalibrated target pulses can be
coupled back to the manual -target
Multitarget Generator
Illustrated in block -diagram
signals appear in the trigger input
to the manual -target generator.
The manual -target generator receives synchronizing signals and
form in Fig. 1 is the multitarget
generator. It produces simultaneously specific and random individual targets and target groups
which can be controlled manually
in width (angular displacement)
and length (radial displacement).
ing subchassis. The mixer also pro-
generator to provide a gating action which is necessary when video
trigger pulses from the external
equipment and relays them to other
target -generating subchassis and
display devices.
Each of the two program -target
generators produces three target
December 19, 1958 - ELECTRONICS engineering issue
Simulator provides jamming and interference waveforms required to produce
effects of most known techniques. Waveforms at L, S and X band and at 30and 60-mc i-f can be simulated. Single targets and target groups are programmable in speed, course, pulse and azimuth width
By LEOPOLD STERNLICHT, Group Leader, The Hallicrafters Co., Chicago,
Countermeasures Targets
groups which can be controlled individually. They are initiated and
synchronized by the trigger pulses
and synchro signals received from
the manual -target generator.
The flight -target generator produces the target groups which can
be controlled only in range and azimuth collectively. The first and
third target group can be controlled
within limits with reference to the
second group. Range and azimuth
of the second group can be varied
either manually or automatically.
The random -target generator is
triggered by the manual -target
generator but does not receive synchro voltage since the possibility of
target recurrence at the same location must be eliminated. Three
channels are triggered simultaneously by the input trigger pulse.
Target -Generator Theory
All that is required to place a
target on the screen of the ppi is
delay in synchronism with the
transmitted pulse energy and rota-
tional correlation between target
and radar azimuth.
The simulated target should have
the same pulse width and prf as the
ppi upon which the target is to be
displayed. These rho -theta coordinates are translated to a time delay by positioning of a phantastron
and a rotating synchro control
transformer. In each case, delayed
pulses are gated by the azimuth
gate to give the targets a given
azimuth width. When random tar-
RANDOMIZING
CIRCUITRY
DISTORTED
DISTORTED
SAWTOOTH
S INEWAVE
OSC
OSC
iA
RANDOM
TRIANGULAR
OSC
MIXER
171
B
gets are required, target width is
established by multivibrators and
DISTORTED
TRIGGER
IN
I
65 -2400
BLOCKING
OSC
CHANNEL NO. 3
4.
AZIMUTH
GATE
USEC
DELAY
H
MIN
RANGE
JOGGLE
STEPWISE
STEP
COUNTER
GATE
o OFF
TARGET
GEN
t
E
fT
gating signals.
Figure 2 shows a block diagram
of the random -target generator.
Each one of three channels gener-
ON
CH NO3
ates a different target sequence.
Each target consists of a number
G
WIDTH
of pulses whose spacing is depend-
INTERVAL
ent upon trigger rate. Pulses can
CONTROL MV
be controlled in width. Time delay
ONos,,.!
OFF O
65-2400
CHANNEL NO. 2
CH NO .2
0
AZIMUTH
USEC
DELAY
TARGET
GEN
GATE
+
4
MIN
RANGE
JOGGLE
STEPWISE
STEP
COUNTER
GATE
USEC
IF
MAX
RANGE
MIN
COUNTER
4IF
WIDTH
STEP
GATE
RANGE control.
I NTERVAL
CONTROL MV
TARGET
WIDTH
FIG. 2
circuits also provide selection of
the range over which the targets
will appear with a MILES MAX
GEN
slip
STEPWISE
kor
the variable 65 to 2,400 -µsec delay
phantastron circuits. The delay
CH NO.1
TARGET
---TARGET
LENGTH
MILES.
RANGE
JOGGLE
The oscillator shapes the trigger
pulses prior to injecting them into
4'
GATE
DELAY
CHANNEL NO.1
IA
INTERVAL
AZIMUTH
Block diagram of random target generator
ELECTRONICS engineering issue - December 19, 1958
screen is also controllable.
All targets are initiated by the
CONTROL MV "..1.
ON
between targets appearing on the
manual -target generator which
triggers the blocking oscillator.
WIDTH
OFF°
65-2400
MIXER
TARGET
INTERVAL
MATCH
Output of the phantastron is
coupled to the azimuth gate circuit
which feeds the target generator.
A PRF MATCH control for the
79
I 0-2#00µSEC DELAY
With an eight -deg target width, the
minimum interval between targets
AZIMUTH GATE
+250V
+175V
TRIGGER
6.8
20
+175
PHAN TASTRON
MEf
120K
5,600
212"
to
V1B
VIA
10K
22
6AS6
V4A
RIOK
MEG
.-Mn..
100
0.05
V2
IOMEG
68E6
270 _100
56K
MEG
-150V
150K
K
STEP GATE
CONTROL MV
41.256
OK
471+
I
0.02
\I
C.
100
1001
6.8
MEG
r.
2,200
F
30 0 V
BELOW 13+
82K
121+
1,800
820, µ F
6V27,.5
4 78
µµF
2,700 µF
0-)
8,200µµF
~°i
I
RANDOMIZER
+ 250 V
1
...+1
0.33
-
68K
.5-
18
MEG
I
2,200,F 0
i13,200
1
WIDTH
MEG
)5800,,
0.022
1201(
250K
INTERVAL
Output
150 V
-BIAS
FIG. 3-Partial schematic of the random -target generator
waveform being produced.
The
TARGET INTERVAL control changes
control multivibrator of channels
one and three. Signals from the
random mixer are fed to the mini-
the step -wise delay counter. In this
manner, the number of pulses fed
to the target generator by the azimuth gate is controlled and the
stairstep waveform output of the
stepwise counter is generated to
control the time delay of the phantastron. This delay in turn determines the range at which the target will appear. Output from the
Table I lists antenna rpm, radar
pps and time required for one deg
of scan for typical scanning rates
used in radar equipment. For example, to produce a one deg target
on the ppi screen, the azimuth gate
remains open for 28 millisec. Out-
stepwise counter is fed to the minimum range joggle and coupled back
to the counter to change the stair step action of the circuit by a small
amount.
Randomizing Circuits
Randomization of the targets is
accomplished with three low -frequency oscillators
and a mixer.
Outputs of the oscillators produce
the varying range and azimuth
targets from scan to scan. A saw tooth waveform is fed directly into
the step gate of channel one and
into the control multivibrators of
channel two. Outputs from a sine
and triangular wave oscillator are
fed to the random mixer, to the
minimum range joggle circuits of
channels two and three and to the
80
of
the
step -delay
Scanning Rates
put of the azimuth gate is then
closed for a predetermined time by
the interval pulse of the control
multivibrator.
The target generator produces a
target one -deg wide when it receives
trigger pulses which are
spaced five millisec apart. At a
pulse width of five millisec, only 25
//sec of the 28 available are used to
produce a one -deg target. Persistency of the screen and the blooming effect of the beam produce the
illusion of a solid target.
Maximum target size is 10 deg.
Maximum interval between targets
to equal minimum target
width. Minimum interval may be
of the minimum target width.
The circuit permits a target width
variable from one to eight deg.
is set
I
the grid of V,, and varies the delay
of the phantastron. As the d -c level
of this step voltage increases, the
mum range joggle circuits of channel one and to the step -gate circuit
of channel three. Injection of these
signals into the three channels
causes sufficient randomization of
the targets.
the duration of the negative half cycle. Output from the width side
of the multivibrator is fed simultaneously to the azimuth gate and
Figure 3 is a partial schematic
diagram of the random -target generator. A switch provides interval
and width timing functions for the
control multivibrator by selecting
a set of capacitors for variable R -C
grid time constants. Potentiometer
sets the potential at the control
counter V, and 17 is applied to
121(
multivibrator changes the duration
of each positive half -cycle of the
Random Generator
grid of V, and effects an average
range control for the pulse delay.
Trigger output of the blocking
oscillator is fed to the cathode of
Ro
µE
6,600µµF
that can be selected is adjustable
from 0.5 to two deg.
Noo. 1,1
4701(
8,200
120
MEG
100K 76807A
RI
-212 AU7
8300
10K
6.0
226
5p0010K
delay increases. But when the voltage reaches a predetermined maximum, it is returned to minimum
and the step -increase voltage process recommences.
The range phantastron produces
targets over a range of 25 to 250
miles. Differentiated output of the
phantastron is coupled into the first
control grid of V, the azimuth gate
control. Output of the control
multivibrator is fed into the second
control grid. Output wave train is
a group of negative pulses occurring only when the second control
grid is in the width portion of the
positively held grid of V44. During
the width portion of the control
multivibrator a flat -top waveform
is produced which is coupled to the
target generators.
Randomization is applied to the
control multivibrator at the junc-
tion of R4 and R, and to the step
gate at potentiometer
Rc.
The tar-
get width and number of targets
are continuously changed
from
scan to scan. The step gate amplifier output of V8 is a 300 -volt pulse
clamped at B+. Variable grid potential, due to randomization at Rc,
produces variable amplitude pulses
to the step -counter diodes 170, and
V,,1.
The stair -step is then d -c
coupled to the grid of V,, producing a randomized increase in the
step voltage. Since the steps are
increasing randomly, the range
step of the targets are different for
each sector.
December 19, 1958 - ELECTRONICS engineering issue
Closeup view of the ten -channel crystal turret assembly. This arrangement introduc:s negligible lead inductance,
prevents spurious osci'lator modes
Crystals Stabilize
Multichannel F -M Monitor
Ten -channel f -m broadcast monitor, made highly stable by crystal control of
the local oscillator, serves as a versatile instrument for network operation.
High sensitivity and signal-to-noise ratio coupled with low drift and distortion preserves broadcast quality
By LESTER A. KARG, Karg Laboratories, Inc., South Norwalk, Connecticut
for
quality of several competing sta-
tuners to monitor high qual-
tuner is frequently used in con-
tions may be made. Commercial re-
junction with a high -gain rotatable
STRINGENT
REQUIREMENTS
cording services can tape clients' antenna. A field -strength meter is
programs from a number of sta- useful in orienting the antenna.
to assure on -frequency operation tions with the same assurance of
To preserve the quality of the
regardless of line -voltage fluctua- stability and accurate tuning as broadcast, the tuner is designed for
tion, aging of components or acci- with a bank of single -channel moni- high signal-to-noise ratio at low
dental mistuning by the operator.
tors thus saving in initial invest- microvolt thresholds. For rebroadThough the single -channel crys- ment and maintenance.
casting or tape recording, signals
tal -controlled monitor serves this
less than 40 db above the noise are
Relay Application
purpose, added versatility at little
of little use. The high signal-toadditional cost is obtained in deFor relay work, where broadcasts noise ratio should be obtainable
signing the monitor as a multichan- are picked up from a distant trans- in a normal environment including
nel tuner. In network operation, mitter for rebroadcasting, flexibil- the usual man-made noise sources
air checks may be made of several ity in the choice of program sources rather than in a filtered, field -free
transmitters from a central loca- without sacrificing stability is af- screened booth.
tion, or comparisons of broadcast forded. In this application, the
Other necessary requirements
ity f -m broadcasts dictate a crystal controlled superheterodyne receiver
ELECTRONICS engineering issue - December 19, 1958
81
IMAGE INTERFERENCE
TRAP
V,
V3
V4
6BZ6 I -F AMP
6BZ6 I -F AMP
V2A
ECC 88 SERIES
R -F AMP
1/2 6AU8
MIXER
- -1
0.5AH
1
1
11
0
75 OHMS
1
1
1
1
0
300 OHMS
L
150
150
150
0.005
0.005
1500-
1,500
1,500
ALAT
)1-
1,500
7--
470
F
0.005
ANTENNA
747
TANK
-0
HIGH
RANGE
+220V D -C
5-50,m1/
K: X 1,000
47K
150K
0-AAA,-
0-50
LOW
RANGE
0.5-5AV
+150V
TO MULTIPLEX
-MA-ADAPTER
47K
V28
10K
V2 6AU8
V6
DISCRIMINATOR
6AU6
V5
OSCILLATOR
CK705
2mo LIMITER
1/212V751%117
68K
6 BN 6
1ST LIMITER
47K
1/2 12 AU 7
CATH FOLL
100 K
500K
47
0.47
GAIN
-IL T
1 MEG
1
11
0.3
-7
jtµF
'3-10
CK
-.0.005
A/F1
.A0
S
V75
0.1
AUDIO AMP
µµF
00
0
0.1
1
I
ac,
Ot.
D -C
(OPTIONAL)
000 F
705
0
1
A,6.
I
ALA
F
0.5V
OUT
100
0600
6802 22K
680
2.5K
2.2
20
330
c.zz, C55
680
2.4 K
OHMS
0.005
FIG. 1-Schematic diagram of the ten -channel crystal -controlled 1-m monitor. Alignment procedure is simplified because, despite tight
coupling of oscillator V,B to mixer V. crystal control prevents oscillator pulling. Tight coupling at a low oscillator output level
also avoids spurious radiation
for such a tuner are low distortion
levels and imperceptible hum. For
convenience in patching into the
studio audio distribution system, a
600 -ohm line output is desirable.
Quartz -crystal frequency control
has a reputation for the utmost in
stability. It can be shown that crys-
tals with the common frequency
tolerance of 0.005 percent are several orders of magnitude more accurate than required for f -m broadcasting. Assuming discriminator
linearity of 300 kc, the crystal oscil-
lator may be permitted to slip 75
(referred to the intermediate
frequency) before distortion from
kc
nonlinearity of the detector becomes a factor.
Frequency Modes
At the highest frequency of operation, which is 107.9 mc, the oscillator output is at 97.2 mc. Because
of the impracticability of fundamental crystals of this frequency,
5th mode operation is chosen. The
crystal fundamental is 97.2 -:- 5 =
19.45 mc. Thus 19.45 x 106 X
0.00005 = 0.9725 kc (the maximum
crystal frequency error). The error
at the 5th mode is 4.86 kc at the os82
cillator frequency. Therefore the
cal alignment and a reasonable level
maximum error from -55 C to 90 C
is less than 5 kc compared with the
allowable error of 75 kc.
of recovered audio. In the present
design, 0.5-v rms is recovered at
medium audio frequencies for the
75-kc deviation corresponding to
Discriminator
Thermal drift of the discriminator in crystal -controlled tuners
must be minimized because it can
be an appreciable part of the 75-kc
tolerance. A high grade of materials
100 -percent modulation. This level
of signal is adequate to insure a
good signal-to-noise and hum ratio
in the audio amplifier. As an aid in
obtaining a reasonable audio level
from the detector in spite of the
and construction in the discriminator is necessary to take full ad-
wide -band
wide -band design. The requirement
fundamental frequencies of the
discriminator (audio
output is inversely proportional to
vantage of the quartz -stabilized lo- the peak -to -peak separation) the
cal oscillator. Ceramic coil forms final limiter tube is operated with
and moisture -proofed windings are relatively high electrode potentials.
indicated. In addition, temperature
A schematic of the tuner circuit
compensating capacitors in close is shown in Fig. 1.
proximity to the discriminator coils
Crystal Oscillator
are used. An additional hedge in
the choice of discriminator is a
Because of the relatively high
for frequency stability in the discriminator is reduced in inverse
ratio to the discriminator peak -to peak bandwidth.
crystals (15-19 mc) and the possibility of operation in spurious
modes, the oscillator crystals are
arranged in a turret so that uniThe choice of a discriminator formly low lead inductances are in-
transformer having peak -to -peak
separation of 600 kc is based on a
compromise between immunity to
drift, linear relation between deviation and recovered audio, noncriti-
troduced when connecting the crystals into the oscillator circuit. When
the oscillator output frequency is 5
times the crystal fundamental, ade-
quate oscillator injection into the
December 194 1958-ELECTRONICS engineering issue
mixer tube dictates the use of a
high -g, tube. The 6AU8 pentode
section 1725 with its plate at 220 v
and screen at 120 v operates the
crystal within its rating. The plate
section is tuned by a high -Q coil
through approximately 78 to 98 mc.
Mixer V2,, is deliberately over-
excited to allow for the gradual
drop in oscillator output as the tube
ages. Oscillator tube g,,. can drop
about 50 percent before conversion
gain is reduced.
To minimize the oscillator radiation problem, the power output of
the oscillator is kept below 20 mw.
Adequate injection is accomplished
ing for continuous tuners. Furthermore, the tracking has been
circuit capacitance is the same for
all frequencies, high circuit impedance is maintained throughout the
band. Selectivity, bandwidth and
sensitivity are constant for all
this stage avoids pulse -stretching.
Second limiter V8 is a common
pentode saturation type. To provide
enough audio output to give a high
signal-to-noise ratio despite the use
of a wide -band discriminator, Va is
operated with fairly high electrode
potentials. With first limiter V, operating on low signals, the function
channels.
of the second is to hold large signals
An incidental advantage of crystal control accrues because the
constant before the demodulation
accomplished exactly on each of the
desired frequencies. Since the shunt
high -Q crystal is the sole frequency -
determining factor. Even if the
process. Without the use of agc, the
recovered audio is held within 0.5
db for signals from 5 to 100,000 µv.
tube or other oscillator circuit components are microphonic, no amount
Signal Strength
Although a tuning meter is unnecessary in the case of a fixed -
by the mixer tuned circuit. This
of vibration will create frequency
modulation of the oscillator. Hum
modulation of the oscillator due to
B+ ripple or heater -cathode leakage also cannot occur.
interdependence makes r -f alignment difficult, especially when the
R -f Amplifier
range of signals, two ranges of sig-
by tight coupling to the mixer. In
an uncontrolled oscillator, this ordi-
narily results in oscillator pulling
ratio of oscillator to carrier fre-
tuned multichannel receiver, a field
strength meter is a useful adjunct
when an antenna rotator is used.
To give an indication on a wide
The ultimate sensitivity of the nal strength are selected by a
tuner depends largely on the per- switch. The low range gives indica-
quency is as small as 1.1 to 1, as it
is in an f -m tuner with 10.7-mc i-f. formance of the r -f amplifier stage
With a crystal oscillator, pulling is in terms of gain and noise. The
familiar series circuit is excellently
almost impossible.
Mistuning of the oscillator out- suited to the requirements of f -m
put circuit will not affect frequency, reception. The ECC88 twin -triode
merely the amplitude. In fact, with V1 boasting a g,,, of 12,500 provides
a signal tuned in, the output circuit excellent noise performance in this
tuning slug may be varied through- configuration.
The mixer function is convenout its range without affecting the
received signal except for a varia- iently performed in the triode section in gain. It is desirable, how- tion V2A of the 6AU8. The minor
ever, to tune the output circuit if noise contribution of the mixer folfor no other reason than to sup- lowing the high -gain r -f amplifier
press harmonics other than the is minimized by the use of the
tions from 0.5 to 5µv and the high
range from 5 to 50 px. The constants in each circuit are arranged
to cause saturation as the meter
approaches 80 percent of full scale
on either range to prevent overloading the meter. The grid current of
the gated -beam limiter V6 gives use-
ful indications for the higher signals. The current in one half of the
detector load is used to indicate
small signals.
After, standard deemphasis, the
signal is amplified in tube V,A and
fed to cathode follower V75 to provide about 4 v of audio at maximum
fifth. To accomplish this tuning, the
output is maximized by observing a
vtvm connected to the discriminator
test point when the selector switch
triode.
is set to the highest frequency and
a signal source is connected to the
antenna input. Successively lower
frequency crystals are switched in
and the small incremental induc-
In contrast to some design ob-
modulated signal. A divider pro-
jectives where i-f gain is carried to
vides a 0.5-v signal at the 600 -ohm
level. Distortion cancellation is employed between sections to yield a
harmonic distortion level below 0.1
percent. Hum output is 78 db down.
Audio -frequency response is within
1 db from 15 cps to 30,000 cps.
In developing a tuner for the exacting requirements of monitoring,
rebroadcasting, and tape recording,
tances adjusted to maximize the
gain on each channel in turn.
Tracking
This process is repeated to adjust
the mixer tuning and the antenna
input circuit tuning. In each case,
broadcast signal may be substituted
for a signal generator, providing
exact alignment without an expensive generator.
1-f Amplifier
a high level so that internal tube
noise saturates the limiter, the
present design represents a balance
between r -f and i-f gain such that
a small signal about 20 db above the
noise will saturate the limiter. This
avoids the difficulty present in receivers with excess i-f gains which
are characterized by roar between
stations exceeding the modulation
level of a strong station.
The present design utilizes two
i-f stages V, and V, using
6BZ6 tubes. A signal of a few microvolts at the antenna terminals
causes the 6BN6 gated -beam tube
gain
setting with a
100 -percent
the requirements of critical music
lovers are also met. Using exactly
the same principles, the pretuned,
multichannel
crystal - controlled
tuner has been packaged as a highfidelity instrument. The fixed -fre-
quency tuner provides a signal
When r -f and oscillator alignment is completed, the tuner has V, to operate in the rectangular source with the same reliability and
been tracked at ten points in con- knee portion of its characteristic. freedom from distortion as with
trast to the usual two -point track- The absence of a charging circuit in tape recorders or record players.
ELECTRONICS engineering issue - December 19, 1958
83
Watch Timer With
Watchmakers test instrument features a simple time base, with high linearity
achieved by two -stage d -c amplifier with unity gain, back -coupled to R -C in-
tegrator. Time -base reference, synchronized with master clock, can check
accuracy of any timing device
By S. T. KIEWIED, Australian Oil Refining Pty. Ltd., New South Wales, Australia
AWORTHWHILE improvement
over existing sawtooth generators was developed in an applica-
tion that required a simple time base reference circuit that would
nearly as good as a crystal oscillator.
A Miller integrator was not suitable for the watch -timer application, due to the annoying step at the
current
drain, rapid flyback, stability, and
suitability for low frequencies.
beginning of the trace and rela-
bootstrap circuit
these needs.
added for push-pull and faster flyback. Also, the time base is complicated by one or more clamping di-
combine
linearity,
low
tively slow flyback. Although Miller -
integrator linearity is good, it deNeither a Miller integrator nor a teriorates when more tubes are
would
satisfy
A highly linear time base, synchronized with a master clock, is
used as a watchmakers or jewelers
test instrument to assure accuracy
of a timepiece under construction
or repair.
Basic System
Figure 1 is a block diagram of
the watch timer. The tick of an accurate master clock, the reference
timepiece, is amplified and synchronizes the time base. The tick
of a watch under test is amplified
likewise, and the output connected
to the vertical -deflection plates of
a crt, as well as to a small speaker
to make the ticks audible.
The switch allows the tick trace
of the master clock to be shown on
the crt screen. If the test watch is
perfectly timed, the trace will re-
Front -panel view of watch timer showing test watch mounted on hollow block
odes.
The bootstrap circuit shows no
step, but linearity is not as good as
the Miller circuit, since cathode follower action in the bootstrap results in less than unity gain and a
capacitor acting as a floating battery, further reduces gain.
Time -Base Circuit
In this time base circuit, Fig. 2,
the voltage change appearing across
capacitor C is applied to a two -stage
direct -coupled amplifier with unity
gain. Output is fed back into the
R -C integrator network, so that the
voltage change at both ends of R is
the same. The charging current into
C, therefore, is constant. Push-pull
output is obtained from the anodes,
connected directly to the X -plates
of the crt. Unity gain for both
stages is accomplished by a large
amount of negative feedback. For
the first stage this is nearly 100
percent. For the second stage, it
depends upon the magnitude of the
negative supply voltage, but is
about 50 percent.
Direct couplings are used to
avoid exponential nonlinearity.
By adjusting feedback, the charging current can be made to increase
or
decrease during the forward
stroke. A position is found where
the current is constant. The easiest
way to adjust the time base is to
set it at a low frequency, connect a
voltmeter across the integrator resistor and adjust feedback until the
main in the same position. For a
slow watch, the tick trace will shift
in the same direction as the sweep
and vice versa.
A timepiece with an eight -day
mainspring can be adjusted to bet-
meter shows no fluctuation.
ter than two seconds gain or loss
per week, especially if it is tested
in the same position and at sub-
can be compensated by slightly rais-
stantially
constant
Any leakage across capacitor C
ing the gain. If the leakage resistance is represented by R the required gain is A = 1 + R/R,.
The capacitor is discharged by
temperature.
This accuracy, five parts per million, compares favorably with a pre-
cision tuning -fork standard and is
84
Watch timer, used in a jewelers work-
shop, checks faulty timepiece
the trigger circuit T. Here a gas
triode furnishes extremely rapid
December 19, 1958- ELECTRONICS engineering issue
Precise Time Base
MASTER
CLOCK
AMPL
PRE AMPL
TEST
WATCH
+300V
+300V
MICROPHONES
0.22
0.47
I MEG
MEG
PRE
AMPL
AMPL
1,000
47K
Y2
MIKE
MEG
+300V
+300V
+300V
ASTIGMATISM
68K
1 MEG
1 MEG
TIME BASE
+300V
R
22K
FREQUENCY
SPEAKER
0.47 MEG
0.22
Y
I MEG
It
MASTER
CRT
WATCH
MIKE
EF86
,100K
100K
TO
CRT
XI
100
MEG
PLATES
F
500
X
X,
6SN7
1,000
F
PLATES
SYNC
2.2 MEG
0.1
100K
0.1
1-Master clock synchronizes time
is
2.2
F
1 MEG
0.1
PULSES
1,000
6SN7
EF86
2.2 MEG
base that
T
CRT
F
0.1
AMPL
Fig.
1p00
YI
WATCH
0
TIME
BASE
47K
Alm- TEST
TEST
CHECK TEST
SYNC
+300V
I MEG
MEG
1,00Q
PRE
SPEAKER
22K
8
LINEARITY
compared to test watch
Fig. 2 --Large amount of feedback in
timer circuit results in extreme stability
PRE AMPL
AMPL
flyback.
For higher frequencies,
any suitable trigger such as a
Fig. 2 is approximately 3 to 12 cps.
Crystal vibration microphones
Schmitt may be used with reduced
output impedance. For highest
sweep speeds, high -slope pentodes
are indicated instead of a twin triode, with low -value load resistors
augmented by peaking arrange-
pick up the tick. Standard microphone inserts with the diaphragm
removed proved suitable.
The amplifiers are conventional
except that low frequencies were
removed to avoid extraneous low -
frequency noise that might cause
Large feedback makes the time annoying patterns on the screen.
base extremely stable, with distor- The trace contains detail for timing
tion reduced to a vanishingly low and fault-finding purposes, and the
figure. After initial adjustment, no audible tick from the 3 -in. speaker
further settings are necessary. sounds convincingly natural.
Base -line length is set by altering
ments.
the voltage at which the trigger
circuit fires. In the watch -timer
circuit, this is done by adjusting
the grid bias of the gas triode. The
trace can be shifted by varying the
grid bias to either triode of the
time base.
This simple timebase has the
added advantage of low -power operation : about 2 ma at an output of
220-v peak -to -peak. The push-pull
arrangement insures steady drain
from the power supply.
The sweep frequency range for
the timer components shown in
Construction
The reference timepiece, mounted
on the face of the timer, serves a
triple purpose: a synchronizer for
the time base, an indicator of the
time interval required for checking
the watch under test, and of course
for indicating the correct time.
A stock power transformer was
used that had a low -leakage field
tivity. Simple stabilization was ap-
plied to the B+ voltages by two
VR-150's for the positive supply,
and one VR-105 for the negative
supply. In future models it would
be advantageous to use a 150-v
negative supply.
Since over 90 percent of all
watches have a tick frequency of
five per second, or 18,000 beats per
hour, one reference timepiece with
this beat covers most requirements.
Additional master watches with
other beats, are kept for special applications.
A rectangular scope, was used
with the tube positioned at a 30 deg angle.
For timing a watch, a transparent flexible strip, marked in five second intervals, was chosen to fit
over the face of the crt screen. The
strip is moved until the zero mark
coincides with the tick trace and
the gain or loss in seconds per day
is read off after an interval of one
with copper winding around the
core. Shielded primary and heater minute.
The only controls on the face of
windings are provided. The high
voltage for the crt was kept fairly the instrument are strip adjust,
low to get sufficient horizontal sensi- vertical gain and speaker on -off.
ELECTRONICS engineering issue - December 19, 1958
85
Split Reflector for
Dividing the single -layer pillbox into two halves, with metal septum, corrects
impedance mismatch of this type of line feed antenna. Technique applies to
parabolic reflectors and other microwave antennas, and provides antenna
designer with new design tool to increase radiated power while maintaining
narrow beamwidth
By R. L. MATTINGLEY, B. McCABE and M. J. TRAUBE,
Bell Telephone Laboratories, Inc., Whippany, N. J.
center of the aperture causes energy to be reflected directly back
REFLECTED IMPEDANCE mis-match
of a single -layer pill -box line-
feed antenna used at microwave
frequencies produces an undesirably high voltage standing -wave
into the feed orifice from the para-
bolic surface of the pillbox. The
ratio and its implication of reduced
power radiated into space.
A new procedure, developed to
correct these difficulties, compartments the single -layer pillbox (Fig.
1A) into two halves by a metal septum extending from the middle of
DIELECTRIC
LENS
other', and other methods which
the feed orifice to the back edge
(Fig. 1B). No deterioration of the
far -field pattern is produced. Preliminary measurements of voltage
standing wave ratio do not exceed
1.35 over a 12 percent frequency
band, plus minor lobe discrimination of 18.5 db. Improved results
are anticipated with refinements in
components that will soon be avail-
attempt to improve impedance
match. However these methods have
either proved inadequate or have
required complex structures.
SECTION A -A
Split -Reflector Technique
Splitting the single -layer pillbox
FIG. 2-Split reflector technique can be
extended to parabolic reflectors
able.
The split reflector technique may
undesirably high voltage standing wave ratio and reduced power radiated into space have been improved
by vertex plates', directional couplers', feed displacement, isolators,
mechanical displacement of one reflector half with respect to the
also be extended to paraboloidal re-
into two halves (Fig. 1B) offers a
promising technique, free of previous difficulties. Each half is fed
by conjugate output ports of a
flectors (Fig. 2). While no order -
short -slot hybrid coupler.' Details
of the feed are shown in Fig. 3.
of -magnitude improvements in operation of the single -layer pillbox
horizontal, and the short -slot hybrid
are claimed, the antenna designer
Polarization of the E vector is
section is coupled along the broad
is provided with a new tool that wall of the waveguide. Voltages at
should prove useful in a variety of the output ports of the hybrid are
applications.
in phase quadrature. Thus each
Single -Layer Pillbox
(A)
As seen in Fig. 1A the single layer pillbox involves closely spaced
DIELECTRIC
LENS
FEED
(S)
FIG. 1-The single -layer pillbox (A) is
split into two halves by a metal septum
(B) which extends from the middle of the
feed orifice to the back edge
86
parallel metal plates together with
a reflecting wall, usually parabolic
in contour. This arrangement is an
attractive line feed structure,
rugged and simple to maintain adequate control over dimensional variations. However, the necessary
placement of the feed orifice in the
direct path of reflected rays at the
half is illuminated equally in ampli-
tude, but with a 90 degree phase
difference.
A phase -correcting section is nec-
essary to establish an equiphase
surface at the line feed aperture.
In this case, a dielectric delay section was selected. Calculations show
that at the extreme ends of a 12
percent frequency band, the right
and left sides of the aperture will
be less than 5 degrees out of phase
(for a relative dielectric constant
December 19, 1958-ELECTRONICS engineering issue
Microwave Antennas
-mil
3-8.W.1.05°
0
18.5 D
r
1.1
Authors McCabe and Traube are seen making adjustments to center -feed antenna
system that improves the impedance properties of a single -layer pillbox line feed
antenna used in the microwave portion of the frequency spectrum
of 1.25). A 5 degree maximum
phase variation causes a shift in
the main beam of the antenna of
approximately 1/36 of a beamwidth
measured at the 3 db points.
Experiments" have shown that a
maximum reduction in gain of less
general formulation results:
B=
Al (beam angle)
2.To
Here B is the boresight shift, and
FIG. 4-Typical radiation pattern
of
septumated single -layer pillbox with
accelerating lens; f, = 16,500 me
coupler, the voltage in the auxiliary
arm lags.
The action of the compartmented
pillbox depends upon the symmetry
of reflections from its two halves.
fo is the center frequency. For 12
percent ( ±6 percent) bandwidth,
of/f. = 0.06 which gives 0 = (0.03)
Reflections from the right compart-
puted for a number of frequencies,
shows that the one-way loss would
viously obtained.
be about 0.01 db.
placed in the pillbox half excited by
in a resistive termination connected
to the appropriate hybrid port. Any
asymmetrical reflections are visible,
than 0.1 db will be caused by the
5 degree phase variation. Attenuation loss in a dielectric section, com-
Neglecting dispersion, the more
ment have their counterpart in the
left side of the box. These reflec(beam angle) differing only slightly tions enter the short -slot hybrid in
from the beam-angle/36 value pre- phase quadrature and are absorbed
The dielectric section must be
the orifice that is not in line with
the feed. Correspondingly, an acceleration section could be posi-
TAPER.
SHORT
SLOT
HYBRID
B COUPLER
APERTURE
tioned in the half in line with the
feed. Thus the voltage in the auxiliary waveguide leads that in the
directly coupled waveguide.
It has been verified, both experi-
mentally and analytically that in
B
-SEPTUM
FIG.
SCHEMATIC
3-Details of dual feed horn
the broadwall coupler, the voltage
in the auxiliary arm leads that in
the main arm. In the narrow wall
ELECTRONICS engineering issue - December 19, 1958
partially at least, to the generator.
Phase corrector reflections may
be minimized by appropriate design. A binomial or Tchebycheff
step in the phase correcting section
can be used. However, a limitation
inherent in this hybrid -compartmented antenna system can be made
clear by considering the following.
Assume first that the interface
between the air and refracting material within the pillbox can be
87
with the same pillbox using an
ordinary waveguide feed. A good
I.4
check on the phase corrector is
easily obtained by interchanging
4
L3
the feed and absorber. Equal split
beams are obtained only when the
phase corrector is just the correct
cc
12
length.
1
1,0
15,000
16 000
17,000
FREQ. IN MC
FIG. 5 -Voltage standing wave plotted
against frequency
Figure 5 plots the voltage standing wave ratio over the 12 -percent
frequency band. The maximum
voltage standing wave ratio is 1.35
(2.6 db) and is to be compared with
the maximum standing wave ratio
of 4 db for the same pillbox with
an ordinary waveguide feed. Hybrid measurements show a mismatch of about 1.2 db. This mismatch, added to the 1.6 db ascrib-
DIELECTRIC
PHASE CORRECTOR
able to the mismatch at the pillbox
aperture, yields approximately the
value observed. Improved short -slot
hybrids, currently in development,
can reduce the 2.6 db mismatch to
perhaps 2 db.
The power loss implicit in this
arrangement should not be over-
HYBRID
COUPLER
6-Circularly polarized rotating
joint uses hybrids for the quarter wave
FIG.
plates (A) as well as for the antenna
looked. Most of the 4 db mismatch
observed before compartmenting
can be assigned to symmetrical re-
feed (B)
made reflectionless and second that
the hybrid is ideal. Even so, there
is 180 degree difference between the
path lengths traversed by the en-
ergy which arrives back at the
feeds after reflection by the discontinuity at the guided -unguided
interface. The generator sees all of
this reflection which can be minimized by increasing the plate spacing to diminish the Ay/A ratio or
tapering to reduce discontinuity at
the guided -unguided transition.
TEir
chosen because of the ease in handling physical antennas. The radiating aperture was 45 inches
(about 64 wavelengths). An equivalent aperture at L -band would be
about 50 feet.
A typical radiation pattern, Fig.
4, shows the depth of the nulls, in dictating that the feed structure is
well -focused, and the 18.5 db side
lobe
discrimination.
pared with one degree measured
88
Circular Polarization
antenna
The compartmented
lacks only the requisite orthogonal
separation of polarization in its two
halves to be classed as a sort of circularly polarized antenna. The combination of this antenna type with
a circularly polarized TEll rotating
joint is particularly interesting.
In a circularly polarized rotating
joint two quarter -wave plates are
used; one converts the input from
linear to circular polarization and
the other reestablishes linear polar-
ization in the output. Thus considered separately, the antenna rotary joint combination would seem
to require two quarter -wave plates
plus the hybrid feed as in Fig. 6A.
However, these three units can be
collapsed into one. In Fig. 6B hybrids are used for the quarter -wave
plates as well as for the antenna
feed. In Fig. 7 the two components
of circular polarization differing 90
degrees in time phase, are led off in
separate waveguides and are mechanically juxtaposed to serve as the
feed system. The hybrid quarter wave plate can be replaced by any
quarter -wave plate (array of pins,
dielectric fin, etc.) without affecting the action described.
Parabolic Reflector
FIG 7-Components of the circularly
polarized rotating joint are mechanically
juxtaposed to serve as a TEii rotary
joint feed
In
the
paraboloidal
reflector,
(Fig. 3) , a metallic plate splits the
paraboloid into two halves and
0.5P
3
E10
3.5°
SPLIT PARABOLOIDAL
REFLECTOR (181N.)
FREO.,16.5 K MC
w
CC
again a hybrid coupler illuminates
each half in phase quadrature. A dielectric phase corrector is applied
to the appropriate half. This antenna structure was built using an
18 inch paraboloidal reflector. Figure 8 is the E -plane radiation pattern for this antenna.
19.608
-I 20
REFERENCES
(1) Fry, D. W., and Goward, F.
(71
17-
K.,
"Aerials for Centimeter Wavelengths",
p 60, Cambridge Univ. Press, 1950.
(2) Jakes, W. C., Broadband Impedance Matching With a Directional Coupler, Proc IRE, 40, p 1216, Oct. 1952.
(3) Scheldorf, M. W., Improvement of
Impedance for Microwave Reflector Feed,
Proc IRE 45, p 1548, Nov. 1957.
w
30
CC
(4) Riblet, H. J., The Short -Slot Hybrid Junction, Proc IRE, 40, p 180-184, Feb.
Beam -width,
measured as 1.05 degrees, is com-
bound of 5 percent.
ROTARY JOINT
Test Results
A single layer compartmented
pillbox operating in the K. frequency band (16,500 mc), was
Hence, the power loss,
given by (voltage reflection coefficient)" = (0.23)2, has an upper
flections.
1952.
40
(5) Cheng, D. K., Effect of Arbitrary
FIG. 8-E -plane radiation pattern of an
18 -inch split
paraboloid reflector
Phase Errors on the Gain and Beamwidth
Characteristics of Radiation Pattern, IRE
Trans, AP -3, p 145, July 1955.
December 19, 1958 - ELECTRONICS engineering issue
25V
121/
R2
RL
600
c
B
VBB
2 N 493
PI
VE
PEAK POINT
= X 1,000
IN X
8
6
cc
4
-
2
.0.68
-TRIGGER AT Y
VALLEY POINT
0
+TRIGGER AT X
, 20
10
EMITTER CURRENT IE IN MA
(A)
00
02 04 06 08
1.2
14 16
18
2
TRIGGER PULSE WIDTH IN MICROSECONDS
(B)
Basic bistable circuit (A) and emitter characteristic of
sistor (B). Shown are two stable operating points
FIG.
77
LOAD LINE
0
'TRIGGER
VBB =25 VOLTS
VI
- 10
(.0
IN Y
Vp
-- -
0 12
27 K
TRIGGER
14
1
the
unijunction tran-
FIG. 2 -Trigger amplitude is plotted as
a function of pulse width
Bistable Circuits Using
Unijunction Transistors
Unijunction transistor simplifies bistable-circuit design and permits operation at high ambient temperatures. Use of negative resistance region as one
stable state decreases power requirements and increases switching speed.
Modified circuit has clamping diode that holds emitter voltage below peak point voltage. Ring -counter application explained
By T. P. SYLVAN Application Engineer, General Electric Company, Syracuse, New York
DEVELOPMENT
of
new
active
and passive components has
greatly simplified circuit design.
The number of components previously considered essential for
electronic circuits can be reduced
through redesign with more functional components.
The silicon unijunction transistor
is an example of an active component whose characteristics simplify
relaxation -oscillator
and
timing -
circuit design and provide the advantages of increased stability with
temperature, life and supply -voltage variations.' Modified relaxation -
oscillator circuits function as pulse
generators, pulse amplifiers, saw tooth generators and frequency dividers.
Still other circuits' have
been designed as free -running or
one-shot multivibrators with only
one unij unction transistor required.
Negative -resistance characteris-
ode is reverse biased. Point B is in
tics of the unijunction transistor
emitter is
make possible the design of bistable
circuits with a single unijunction
transistor. But the design and
analysis of these circuits markedly
differ from those of bistable circuits made with more conventional
junction transistors.
Basic Bistable Circuit
The basic form of the unijunction transistor bistable circuit is
shown in Fig. 1 together with the
corresponding emitter characteristic curve. The two stable operating
points A and B of the circuit occur
at the intersection of the load line
formed by R,, and V, and the char-
the saturation region where the
conducting and
the
emitter voltage is low. The slope
of the emitter characteristic curve
in the saturation region is 0 to 40
ohms, while the slope of the emitter
characteristic in the cutoff region
is greater than 10 megohms.
For reliable bistable circuit operation the supply voltage V, must
be less than the peak -point voltage
V,.. Otherwise, point A would cease
to be stable for the circuit. In addition, the value of resistor R, must
be small enough so that point B
falls to the right of the valley point
for all operating conditions. If
point B were to fall to the left of
the valley point in the negative acteristic curve. Point A is in the resistance region, then the circuit
cutoff region where the emitter di- could be regenerative and point B
ELECTRONICS engineering issue - December 19, 1958
89
Lice valley point and is close to the
0.9
point of instability. But triggering
0.8
it at input Y deprives the circuit
operation of the flexibility neces-
>207
Z 0.5
0 0.4
VBB = 25 VOLTS
t7t 0.3
cc
Vp
0.2
0.1
15 VOLTS
I
rf
00
2
3
4
5
6
7
8
9
10
11
12
TIME IN MICROSECONDS
FIG.
3-Recovery
characteristics of
peak -point emitter for 2,200 -ohm load
resistor and 8-milliamps emitter current
(1) and 1,000 -ohm load resistor and 16milliamp emitter current (2)
sary for practical applications and
also reduces the permissible range
of the load current.
There is still another method of
turning the bistable circuit off.
Momentary reduction of V, moves
the load line down on the characteristic. And when the loadline intersects the emitter characteristic
below cutoff at 7 volts, shown by
dotted lines in Fig. 1B, the circuit
is turned off.
If the load resistor Ri, is connected between base B, and ground,
would not be an unconditionally
stable operating point.
With the operating point at A,
the bistable circuit of Fig. 1A is
off because there is only a small
current flowing through the load
RL and through the emitter of the
transistor. Power dissipation in
the load during the off state is
determined by the size of R, and
by the less than one tra leakage
current of the emitter and is less
than 10' watt. In the on state,
the circuit can be turned on by a
negative pulse applied at base B,
or at base B,. It can be turned off
by a positive pulse applied at base
B1.
The current gain between
emitter and base B, provides higher
creased. Minimum required trigger -pulse amplitude is shown in
Fig. 2 as a function of pulse width.
The required trigger amplitude at
base B, is greater than the required
trigger amplitude at the emitter
by a factor 1/77.
Although trigger requirements
for turning the transistor off are
complex, as a rule, turnoff is faster
as the value of the emitter current
immediately before turnoff is decreased. Faster turnoff is obtained
if the emitter is driven negative
with respect to base B, and if base
B, is kept out of saturation. Current can flow either in or out of the
emitter on turnoff. When the
emitter is driven negative with
respect to base B, on turnoff, the
emitter diode exhibits storage ef-
switching efficiency, but current
fects similar to those of some types
of junction diodes.
On turnoff, recovery is not complete even after the emitter ceases
condition.
to conduct. The effective peak -point
emitter voltage V,, recovers toward
flows through the load in the off
To turn the transistor on in any
the steady state value Vo as shown
14
which
corresponds to operating
point B, about 135 milliwatt is delivered to the load and 45 milliwatt
is dissipated in the emitter circuit.
RANGE
OF V,
8
6
Trigger Input
A positive trigger with an ampli-
4
tude greater than (V1 - V,) applied at point X or a negative trigger applied at input Y turns the
bistable circuit on. If the trigger
is applied at input Y, it must be
0
negative with an amplitude greater
than (V1 - V,)/,q where is the
intrinsic standoff ratio of the uni-
OSCILLOSCOPE
PATTERN
(TWO UNITS)
10
i8
EMITTER CURRENT IE IN MA
(A)
(8)
FIG. 4-Test circuit has scope (A) with pattern (B) indicating characteristics
77
junction transistor. Triggering at
point X essentially raises the load
bistable circuit, the emitter voltage
line on the characteristic curve
while triggering at input Y lowers
the emitter characteristic curve by
than the peak -point voltage. Or the
peak -point voltage must be dropped
changing the effective value of
creasing the voltage at base B,. The
emitter current must also be
greater than the peak -point emitter
current I,,, if the transistor is to
turn on. The peak -point current is
generally about 4µa at 25-v inter base voltage and a temperature of
V55.
A negative trigger pulse of amplitude (V, - Vv) applied at input
X turns off the bistable circuit of
Fig. 1A. Because the emitter input
impedance in the on state is quite
low, the output impedance of the
must be raised to a value greater
below the emitter voltage by de-
in Fig. 3. The turnoff circuit time
constant must be designed so that
the emitter voltage rises more
slowly than V,; otherwise, the
emitter conducts before recovery is
complete and the transistor cannot
be turned off.
Test Circuit
Because of the nonlinear emitter
characteristics, the design of the
bistable circuit of Fig. 1A is ordi-
trigger source must also be low. 25 C.
narily difficult. While graphical deThe circuit can also be turned off
When trigger pulses are used, sign techniques do ease the task,
with a trigger at input Y but only the required pulse amplitude in- taking measurements and plotting
if point B is slightly to the left of creases as the pulse width is de - the emitter characteristic curves
90
December 19, 1958 - ELECTRONICS engineering issue
cn 14
it
LOAD LINE
>w 8
SLOPE= -RI
+I2V
V3
K
R3
O2
0
a
12.4K
X 1,000
cc
"PI'
0
I-
20
10
IK = X 1,000
EMITTER CURRENT IE IN MA
negative trigger at X for turnoff
value depends on bias point B, increasing as the valley point is approached. The value of the critical
capacitance is greater than 50 pilf
if the bias point B is below 5 v.
When the transistor is biased in
design and testing can be greatly
simplified with an oscilloscope as
indicated in Fig. 4A. The load re-
sistor R,
series with the
is in
emitter and the characteristic
curves for the complete circuit are
displayed on the scope.
Acceptable operating voltages lie
between the dotted horizontal lines
the negative resistance region in
the on state, the power required
for turnoff and the turnoff time are
both greatly reduced. An interest-
ing technique for turnoff is indicated by the dotted portion of the
circuit of Fig. 5B. When V, is
negative, the diode D, is reverse biased and the dynamic resistance
in series with the capacitor C, is
which intersect the characteristic
curves in two regions of positive
slope. For example, if the two
characteristic curves in Fig. 4B
correspond to limit samples of a
certain type of unijunction transistor, the acceptable range of op-
sufficiently high to stabilize the
transistor at the bias point B.
erating voltage is between the
dotted lines.
When V is positive, the diode D,
is biased in the forward direction
Modified Bistable Circuit
and its
dynamic resistance de-
below the peak -point voltage. When
creases as the forward current increases. When the total dynamic
resistance around the loop (D, C- E - B,) becomes negative, the
a negative trigger at base B, turns
on the transistor, the clamping diode is back -biased and the resistor
R, is the emitter load. Since the
Still another bistable circuit is
shown in Fig. 6. Here the slope of
In Fig. 5 another version of the
bistable circuit has a clamping
diode to hold the emitter voltage
transistor is biased at point B in
the negative resistance region, op-
eration is stable provided the caemitter and
base B, is kept below a critical
pacitance between
value.
The
ksETI
critical
capacitance
3.3K
O2
C2
I
0.002
-r
UNIJUCTION
TRANSISTORS- 2iN489
R4
R3
0.002
D2
m- 03
R6
R5
3.31(
03
C3
0
o
20
10
Vc - V so that the emitter is de coupled from point Z and the capacitor C, does not cause transistor
unbalance at bias point B. Only a
small negative trigger is needed at
input X to turn off the unij unction
transistor.
Ripg Counter
The ring counter circuit shown
in Fig. 7 illustrates an application
of the bistable circuit of Fig.
1.
Resistors R, and R, correspond to
the emitter load resistor and keep
the voltage at the collector of Q,
less than the peak -point voltage of
the unij unction transistors when
the supply voltage is turned on.
Transistor Q, is turned on by the
set switch and maintained in the
on state by the current
flowing
through R, and the diode D,. When
the first trigger pulse is applied, the
current from R is diverted to
ground through the collector of Q,
and then Q, turns off. The voltage
at base B, of Q, rises and Q, is
turned on through C,. At the end
of the trigger pulse, Q, is mainthe loadline between points A and C tained in the on state by the curis determined by the parallel com- rent flowing through R,, and D,.
bination of R R, and R,. When the Each successive trigger pulse adtransistor is on, the voltage at ter- vances the count one stage to the
minal Z is equal to V,. The diode right.
The circuit shown in Fig. 7 operis thus back -biased by a voltage
ates over 20 to 40 v and with trig-
ger -pulse widths between 6 and 9
µsec. The operating frequency range
+30 V
R2
3.31(
IK
circuit is regenerative, and the
transistor turns off.
C,
0.002
--V
2
6-Bistable circuit with diode decoupling needs only small
FIG.
has unusual turnoff technique (B)
The
--Vc
(B)
FIG. 5-Modified circuit uses emitter voltage clamping (A) and
involves considerable work.
VALLEY POINT
C
EMITTER CURRENT IE IN MA
(A)
(B)
(A)
t,
6
4
R4
2
2N493
Ally SLOPE. -R1
1124
8
VALLEY POINT
4
IQ
j'-'n
z 10
Ito'
6
VI
-
R3
8.6K
z 10
3.3K
C4
TRIGGER
820
2N333
05
0.002
wD4
R7
470
Re
is
0 to 40,000 cps and the cir-
cuit performs satisfactorily at am-
bient temperatures up to 110 C.
6.8K
REFERENCES
R
OK
(1) T. P. Sylvan, Design Fundamentals
of Unijunction Transistor Relaxation Oscillators, Electronic Equipment, Dec. 1957.
ALL DIODES 1N456
FIG. 7-Ring counter operates at frequencies up to 40.000 cps
ELECTRONICS engineering issue - December 19, 1958
K = X 1,0 0 0
(2) E. Keonjian and .T. .T. Saran, UniTransistor Forms Flip Flop,
junction
ELECTRONICS, p 165, Sept. 1957.
91
Phase -Selective Gate
Two unmatched diodes are used in. phase -selective circuit. Phase reference
voltage controls diodes so that they conduct only when in -phase signal component is passing through maximum and quadrature is passing through minimum. Useful output can be obtained with quadrature component of signal
30 db greater than in -phase component
By BENJAMIN FENNICK
Systems Engineering Dept., Eclipse -Pioneer Dtv., Bendix Aviation Corp., Teterboro, N. J.
QLIADRATURE VOLTAGES in servo
loops can overload amplifiers
and seriously reduce amplification
of in -phase signals. These voltages
can also reduce accuracy and over-
heat motors. The circuit to be described rejects quadrature and
delivers an in -phase a -c signal.
A variety of methods have been
developed for cancelling or rejecting quadrature voltages. All are relcomplex,
expensive
and
often have environmental limitations.
Two circuits used for eliminating
quadrature are the Ramey saturable
reactor and the diode discriminator.
Both circuits require matched components and both yield d -c outputs.
Matching components is expensive
and difficult, especially when they
are to be used over the wide temperature ranges required of military equipment.
13
04
13
SIG
OUT
IN
T,
REF
IN
DI
FIG. 1-Reference voltage in phase with
useful component of signal is rectified
to permit gate diodes to conduct only
when in -phase signal is at maximum
92
saturable reactors and other devices. However, in many applications, it is necessary to operate
with an a -c signal. If followed by a
transistor amplifier, the Ramey or
diode discriminator must be fol-
Existing Methods
atively
The d -c output provided by these
circuits is suitable for driving
CATHODE VOLTAGE
(A)
,ANODE
GATE
CONTROL
VOLTAGES
VOLTAGE
0
OUADRATURE
COMPONENT 0
OF SIGNAL
(C)
IN -PHASE
When used with a modulator, a
relatively high signal level is required for proper operation. There-
0
SIGNAL
COMPONENT
OF GATE
DIODE CURRENT
signal-to-quadrature ratio is small,
the phase shift of this amplifier becomes critical. Still another problem is the possibility of saturating
the amplifier with the excessive
quadrature.
The phase -selective gate circuit
described here rejects quadrature
without requiring matched components, operates satisfactorily at
low signal levels and produces an
a -c output. Because of these advantages, this circuit is being used in a
military jet automatic pilot.
Theory of Operation
Quadrature rejection is achieved
by using a phase -reference voltage
to permit two unmatched diodes to
conduct only at the instant that the
in -phase component is passing
through maximum and the quadrature component is passing through
zero. The pulses produced are filtered to obtain a sinusoidal output
that can be fed into a transistor
servo amplifier.
The reference voltage is fed into
OFF
(B)
lowed by a modulator, which introduces additional matching and
drift problems.
fore, amplification must precede the
quadrature-rejection stage. If the
F -..-ON
COMPONENT 0
OF SIGNAL
(0)
It!
ic
T3 T4
FIG. 2-Voltages on gate diodes limit
conduction to times T, -T, and T 2%. resulting in current pulses of in -phase signal shown at (D)
a full -wave rectifier consisting of
transformer T diodes D, and D,
and resistor R,, as shown in Fig. 1.
The reference voltage is in quadrature with the useful component
of the signal. The unfiltered, positive, rectified
voltage appearing
across resistor R, is fed to the centertap of transformer T, secondary.
The rectified current peaks are
through diode D, to
capacitor C,. Capacitor C, charges
to approximately the peak value of
the rectified voltage, maintaining a
d -c voltage across resistors R, and
R. Resistors ft, and R,, form a voltage divider for obtaining a small
conducted
d -c voltage. This voltage from their
junction is fed through the center -
tap of the primary of transformer
T. to gate diodes D, and D,.
The phase relationships in the
diode gate are shown in Fig. 2.
The gate anode voltage in Fig. 2A
is the small d -c voltage developed
December 19, 1958-ELECTRONICS engineering issue
Rejects Quadrature
across R and fed to the anodes of
diodes D, and Dr, from T.
The unfiltered, rectified cathode
voltage from T, is also shown in
Fig. 2A. When this positive voltage
exceeds the small positive d -c anode
voltage, the gate diodes cannot conduct. This condition is illustrated in
Fig. 2A before time T,. At time T
the cathode voltage becomes equal
to the anode voltage. Between time
T, and T, the cathode is less positive than the anode, permitting the
gate diodes to conduct. Between
time T, and T the cathode Voltage
is more positive than the anode
voltage, cutting off the gate diodes.
Between time T, and T the gate
diodes are permitted to conduct
again.
Quadrature Signal
The quadrature component of the
signal is shown in Fig. 2B. Between
Assembling the phase -selective gate circuit. Breadboard model is shown at right
time T, and T, and between time
imum. Therefore, the in -phase com-
T, and T, when the gate diodes are
conducting, the quadrature compo-
ponent appears in the output.
The signal component of current
through the gate diodes is shown in
nent of signal is going through
zero. (The duration of the conducting period shown in Fig. 2 has been
exaggerated to clarify the illustration; in normal operation conduction time is extremely short.) During the remainder of the cycle, the
gate diodes are cut off. Therefore,
only a negligible portion of the
quadrature component of the signal
appears in the output.
The in -phase component of the
signal is shown in Fig. 2C. Between
time T, and T. and between time T
Fig. 2D. This current waveform
consists of positive and negative
pulses.
From these
pulses,
the
fundamental frequency is selected
and the harmonics rejected by the
parallel network of capacitor C, and
inductor L,, which are resonant at
the fundamental frequency (Fig.
1). The signal is coupled to the out-
put through transformer T.
Practical Circuit
A practical application of the
and T when the gate diodes are
phase -selective gate circuit is shown
conducting, the in -phase component
in Fig. 3. The values shown in the
schematic were selected for a 400 -
of signal is going through max -
cps servo amplifier. The use of the
common -collector circuit (cathode
follower) at the input was to develop high input impedance.
The d -c voltage for the anodes of
the gate diodes was developed by a
bleeder from the d -c supply instead
of by the method described previously. The 1,000 -ohm load resis-
tor was used to simulate the input
impedance of a common -emitter
amplifier stage. The quadrature
reference voltage was obtained by
shifting the phase of the 400 -cps
power approximately 90 degrees
with the 0.27-4 capacitor, the 2,800 -
ohm resistor and transformer T,.
The reference voltage is approximately 20 volts a -c across each half
of the secondary of T,.
The circuit in Fig. 3 yielded an
output of about 5 millivolts for a
nominal in -phase input of 25 millivolts. Input impedance is 200,000
0.27
REF
IN
ohms. Power gain is approximately
8 (9 db). The circuit is required to
handle 0.5 volt of quadrature, but
as much as 2 volts of quadrature
could be introduced at the input
FIG. 3-Circuit uses common -collector configuration to get higher input impedance
ELECTRONICS engineering issue - December 19, 1958
without appreciable change in the
output. This performance is maintained over a temperature range of
about -54 to 100 C.
93
Line Resonator Chart
Nomograph simplifies calculations required to design capacitance -shortened
quarter wavelength transmission line resonators. Ordinates establish capaci-
tance and line length as products of frequency
By WALTER DAUKSHER, Airborne Instruments Lab., Mineola, N. Y.
CAPACITANCE -SHORTENED
quarter wavelength transmission line resonators are often
used in r -f circuitry in the vhf
and uhf ranges. Design of such
(2,000 x 2), read ji = 3,800.
are then found to be 1.9 cm
Also at fC = 5,000 (2,500 X 2),
read fi = 3,300. The line lengths
1.32 cm (3,300 divided by 2,500).
(3,800 divided by 2,000), and
resonators consists of solving the
transcendental equation X = Z
tan 0 for the dependent variable,
after assigning values (or a
20,
for
these resonators are simplified
line length as products of frequency. On this chart, the fC
ordinate is equal to frequency
times capacitance, and the ft ordinate is equal to frequency
times line length.
Use of nomograph and simple
arithmetic solves capacitance
and line -length requirements.
Examples
-6,000
200
3-
FIRS
4-
5,000
8-
-4,000
1.5-
100-
-3,500
2-
-3,000
3-
80 -
/
60-
4
-2,500
6-
-2,000
84
-1,500
101.5-
4O -
30 -
2-
-1,000
3-
-750
4-
to be 3.87 µpf by dividing 580 by
150 mc.
6-
A 40 -ohm coaxial line is to be
capacitance over the range of
4,500
103-
At Z,, = 200 ohms, and ft =
used to tune a tube with 2-µI.Lf
5,500
150 -
30 -cm long, is to be used as a
resonator at 150 mc. Determine
4,500 (i.e., 150 x 30), read fC =
580. Capacitance is then found
(mcxcm)
-6,610
-6,500
2-
A 200 -ohm transmission line,
the capacitance required.
ft
1.5-
by the accompanying nomograph
that establishes capacitance and
x
2
10-
range of values) to the two independent variables.
Parameter calculations
(mc
fC
OHMS)
300
-500
8-
2,000 to 2,500 mc. Determine the
line lengths required.
At Z. = 40, and IC = 4,000
ELECTRONICS REFERENCE SHEET
-400
-380
-
20 -
105
106
2-rr
-
°
CZ
o
December 19, 1958 - ELECTRONICS engineering issue
...beautiful
...gorgeous
...what climb!
re--
Syv veR sop.)
High -flying, high -cost investments deserve protection. The best policy is
pre-flight testing that checks out vital avionic systems on the ground ... insures
expensive ventures into space. Look to INET for the precise electrical power you
can wheel right out on the flight line ... in a single, custom-made package.
NEXT TIME...LOOK TO INET
FOR PROVEN RELIABILITY
This INET unit was tailor-made for one of the
latest Air Force Fighter -Interceptors. In seconds
it brings to life all the avionic systems the plane
will carry aloft. The unit provides eight power
outputs for separately generated 1,600 -cycle,
400 -cycle, and DC power at closely regulated
voltages for power supply, instrumentation
checkout, and equipment testing.
Engineers desiring a special reprint of the above
cartoon should write to: "FLAME -OUT"
c/o Ina Division of Leach.
INET DIVISION
LEACH
CORPORATION
18435 SUSANA ROAD, COMPTON, CALIFORNIA
DISTRICT OFFICES AND FIELD REPRESENTATIVES IN PRINCIPAL CITIES OF U.S. AND CANADA
EXPORT: LEACH CORPORATION, INTERNATIONAL DIVISION
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 56 READERS SERVICE CARD
95
ELECTRONS AT WORK
Balloon Telemeters Solar Effects
TEN-HOUR recording of the effects
and possibly a few other heavy nu-
some hours later. The effects of
of a violent explosion on the sun
was made recently by Kinsey Anderson, State University of Iowa
physicist. The solar disturbance
occurred on Aug. 22 and 23. The
clei.
It is not now known where
these particles originate. Anderson is not convinced that the protons come directly from the sun,
even though they are associated
the storm are believed to have been
recording will probably be the last
until 1970, when the next peak of
intense solar activity occurs.
The unusual effects of the storm
were picked up by instruments attached to a Skyhook balloon. The
balloon drifted about 20 miles
with solar disturbances. They may
originate from some other source,
and only be speeded earthward by
forces from the earth itself. However, they may be activated by the
height, however, because -60 degree temperatures froze the battery packs after the sun dropped
intense energy from the sun.
Crystal scintillators were used
instead of geiger counters in the
above the surface of the earth at
Fort Churchill, Canada.
The data received during the
solar storm identified the radiation
as being predominantly protons
Time Interval
The balloon -borne instruments
stopped sending data after ten
hours aloft. A second launching
showed the radiation still present
felt on earth for about 18-hrs.
Anderson originally had hoped
for 50 and 100 -hour long flights at
108,000 ft. The telemetering equipment worked only 30 hours at that
below the horizon.
radiation -detection package.
The
other measuring devices were an
ion chamber and a counter -telescope which determine the properties of the particles.
Circuit Evens Scope Brightness
By J. K. GOODWIN East Leake, N. Loughborough, Leics, England
crease in scanning area and velocity
of the spot during the period of the
PHOTOGRAPHING oscilloscope pres-
When a low-level signal and high -
entations can be aided with a relatively simple circuit. It is a separate unit from the oscilloscope and
may be used with most general pur-
voltage pulses are displayed on a
cathode-ray tube, the low-level signal appears to be very much
brighter than the high -voltage
high -voltage pulses.
pose oscilloscopes.
pulses. This is because of the in -
nal is overexposed and the high -
Computer Speeds Missile Design
When attempting to photograph
such a display, the low -voltage sig-
voltage signal is underexposed.
The circuit compensates the difference in brightness automatically
and produces a trace that decreases
bias on the cathode of the cathoderay tube as amplitude increases.
Amplifier V,. in Fig. 1 has a gain
of about ten. It is coupled to V2, a
conventional phase splitter feeding
diodes V, and V,. The diodes are
connected as a full -wave rectifier.
If a sine wave is applied to the
circuit, output will consist of the
original positive half of the wave
followed by the negative half which
has been inverted.
Inverting the negative part of
the waveform is necessary to ensure
that brightening is uniform and
not confined to one or other half of
the displayed signal.
Pentode V; amplifies output from
diodes V8 and V, to about 75 volts
without distortion. Gain is stabilized by a small amount of negative
Forty -ft analog computer was installed at Martin's guided missile and electronics center,
Orlando, Fla. Five -ton system built by Goodyear Aircraft permits electronic simulation
of missile and aircraft flight long before prototype has been built
96
feedback.
Diode clamp Vo limits output to
-±-50 volts, so that the cathode-ray
December 19, 1958 - ELECTRONICS engineering issue
1411LIF)
for the most complete line of POWER SUPPLIES
REGULATION
and STABILITY
VOLTAGE REGULATED
POWER SUPPLIES
OUTPUT OUTPUT
OUTPUT
VOLTS AMPERES IMPEDANCE
MODEL
DC
DC
DC'
'KC
"C.
100KC
Model SC -18-2-M
SIZE
W
H
D
SC -18-0.5
0-18
0-0.5
.04
.4
81/4" 4%2" 135/8"
SC -18-1
0-18
0-1
.02
.2
81/4" 4%2" 135/8"
SC -18-2
0-18
0-2
.01
.1
81/4" 4%2" 135/8"
SC -18-4
0-18
0-4
.005
.05
19"
SC -36-0.5
0-36
0-0.5
.08
.8
81/4" 4%2" 135/8"
SC -36.1
0-36
0-1
.04
.4
81/4" 4352" 135/8"
SC- 36-2
0-36
0-2
.02
.2
19"
SC -3672-0.5
36-72
0-0.5
.15
1.0
SC -3672-1
36-72
0-1
.08
.8
al
31/2" 13"
11
h
Lirc9';'
'Two units mounted in
Rack Adapter RA -2
31/2" 13"
81/4" 452" 135/e"
19"
31/2" 13"
Model SC -18-4-M
Patent Pending
(TUBELESS)
TRANSISTORIZED
SHORT CIRCUIT PROTECTED
REGULATION: 0.1% for line changes 105-125 volts
REMOTE PROGRAMMING at 1000 ohms per volt is
provided. Remote programming allows mounting a
voltage control at a remote point.
REMOTE ERROR SIGNAL SENSING is provided to
maintain stated regulation directly at load.
CONSTANT CURRENT OPERATION: These units can
be set up for constant current operation without internal modification.
at any output voltage in the range minimum to maxi-
POWER REQUIREMENTS: 105.125 volts, 50.65 cycles.
400 cycle units available.
0.1% or 0.003 volt for load changes 0 to maximum
(whichever is greater) at any output voltage in the
OUTPUT TERMINATIONS: DC terminals are clearly
marked on the front panel. All terminals are isolated
from the chassis. Either positive or negative terminal
of each DC output may be grounded. A terminal is
provided for connecting to the chassis. The DC terminals, the remote programming terminals and the remote error signal sensing terminals are brought out
at the rear of the unit.
mum.
range minimum to maximum.
RIPPLE: I my. RMS.
RECOVERY TIME: 50 microseconds.
II STABILITY: (for 8 hours) 0.1% or 0.003 volt (which.
ever is greater).
CONTROLS: Power -on -off switch, one turn voltage con-
AMBIENT OPERATING TEMPERATURE: 50'C maximum.
Over -temperature protection provided. Unit turns off
when over -temperature occurs. Power -on -off switch
on front panel resets unit.
TEMPERATURE COEFFICIENT: Output voltage changes
less than 0.05% per 'C.
trol, on front panel. Over -current control on rear of
unit, Ten turn voltage control available on special
order.
Continuously Variable Output Voltage. No voltage
switching.
Suitable for square wave pulsed loading.
Either positive or negative can be grounded.
II SHORT CIRCUIT PROTECTION: No fuses, circuit
breakers or relays! Designed to operate continuously
into a short circuit. Returns instantly to operating
voltage when overload is removed. Ideal for lighting
Units can be series connected.
High efficiency
Compact, light weight
Low heat dissipation.
For bench or rack use.
Color: Gray hammertone. (Special finishes available).
lamps and charging capacitive loads.
I OVER -CURRENT CONTROL: Can be set from 0 to
120% of full load. Current is limited to preset value
for any load including short circuit.
KEPCO
LABORATORIES, INC.
131.38 SANFORD AVENUE
FLUSHING
INDEPENDENCE
55,
N.Y.
1.7000
ELECTRONICS engineering issue - December 19, 7958
ORDERING INFORMATION:
Units without meters use model numbers indicated in
table. To include meters add M to the Model No. (e.g.
SC -48-1-M).
Rack adapter for mounting any two 81/4" x 42" units is
available. Model No. RA2 is 51/4" high 19" wide.
Rack adapter for mounting any one 81/4" x 45/,2" unit is
available. Model No. RA3 is 51/4" high 19" wide.
AN 0.01% SERIES IS AVAILABLE IN 13 NEW MODELS
KEPCO OFFERS MORE THAN 120 STANDARD VOLTAGE REGULATED
POWER SUPPLIES COVERING A WIDE RANGE OF MAGNETIC, TUBE
AND TRANSISTOR TYPES. MOST MODELS AVAILABLE FROM STOCK.
SEND FOR BROCHURE 8-587
CIRCLE 57 READERS SERVICE CARD
97
NEW IDEAS IN
PACKAGED POWER
tube is not damaged by excessively
high cathode voltage.
To photograph displays of pulses
that have fast rise and decay times,
for lab, production test,
test maintenance, or as a
component or subsystem
in your own products
it is necessary to differentiate the
input waveform slightly so that
only the edges are brightened.
300V
27K
47K
0.5
33K
0
270K
V3
vi
ii2Aur
INi
0.1
0
1
MEG
0
0
1-Amplitude of signs to be displayed controls scope brightness by
controlling voltage on cathode of cathode-ray tube
FIG.
The circuit is set up by applying
the input to the oscilloscope and to
the brightening circuit. The display is set to its correct amplitude,
and the brightening control is used
to produce an evenly bright display.
Some balance is required between
New, fast, a -c regulator cuts
line & load transients 18 db
the brightening control and the
brilliance control of the oscilloscope.
Although this method gives
a
good approximate setting, it may
be necessary to make small adjustments when the first section of film
has been developed.
o
Steady-state line and load regulation to ±0.5% e Transients
attenuated at least 8:1 (18 db) t Fast response-less than
1 cycle (0.02 sec) for 63% recovery o Less than 0.35% distortion
The new Sorensen Model FRLD750 fast response, low -distortion a -c regulator is
ideal for critical applications like null
testing, meter calibration, and the pow-
ering of pulse -type circuits, such as
those used in computers, where false
triggering is not permissible.
Since there is no phase shift between
Input and output, the FRLD750 can
also be used in multiples for the regulation of multi -phase power. Line and
load transients are reduced by at least
8:1, regardless of their magnitude. Both
cabinet and 19" rack -mounting models
available. Write for technical data or
see your Sorensen representative,
And don't forget, Sorensen engineers
will be glad to discuss your special
Magnetic Amplifiers
Aid D -C Measurement
BY M. B. GOOSEY, JR. and
A. C. LAPSLEY
Savannah [liver Lai., P.. I. do Pont
de Neon
and Co., Aiken, South Carolina
FREQUENTLY need arises for meas-
power requirements with you. They can
uring small direct currents
help you select the proper a -c or d -c
power supply, regulator, or frequency changer from the widest transistorized
line on the market, or assist you in de-
circuit at high voltage with respect
to ground. It is often necessary to
signing special power systems.
rent.
A simple and reliable method was
devised to make such measurements
using a magnetic amplifier. The
amplifier also amplifies the d -c
current.
8,39
SORENSEN & COMPANY, INC.
Richards Avenue, South Norwalk, Connecticut
WIDEST LINE OF CONTROLLED -POWER
in a
isolate the high voltage from a
second circuit that measures cur-
EQUIPMENT FOR RESEARCH AND INDUSTRY
In one application, the method
was used to measure current from
IN EUROPE, contact Sorensen-Ardag, Zurich, Switzerland. IN WESTERN CANADA, ARVA.
IN EASTERN CANADA, Bayly Engineering, Ltd. IN MEXICO, Electro Labs, S. A., Mexico City.
an ion chamber. The circuit, shown
in Fig. 1, measures currents in the
98
CIRCLE 58 READERS SERVICE CARD
December 19, 1958 - ELECTRONICS engineering issue
115V
GUARD RING
100
A -C
C ONTROL MAGNETIC LOAD
ION7CHAMBER
WINDING
+600 V
POWER
SUPPLY
AMPL
FEED BACK
WINDING
looi L 160
NEW IDEAS IN
"RI
WIGND-
13-1
1N
50 MV
RECORDER
PACKAGED POWER
for lab, production test,
test maintenance, or as a
component or subsystem
in your own products
FIG. 1-Magnetic amplifier isolates high
voltage from recorder measuring small
direct currents
0.01% regulation-Why be half safe?
You can get a -c line voltage regulation
to the exact degree of precision you
range from zero to 5 ika.
Voltage for the ion chamber is
applied through the control winding, so that it operates at chamber
need from Sorensen. Model 2501
(left) regulates a -c line voltage to
voltage. The feedback winding con-
± 0.01% at 2500 VA. Other Sorensen
a- c models range in precision from
meter calibrators to rugged "constant
voltage transformers," designed to give
you maximum volt -amps per dollar.
trols gain and increases stability.
Resistor R, controls coupling between the feedback and load wind-
ings. Linearity of the amplifier is
also affected by
R,.
With
R,
equal
to 268 ohms, output is linear to
±0.5 percent of full scale.
in initial tests, 1,200 volts was
applied to the control winding of
Fully -transistorized regulated d -c
supplies-The most complete line of
transistorized low -voltage dc power
supplies on the market-like the new
the magnetic amplifier without
voltage breakdown. The circuit has
performed satisfactorily under continuous operation with 600 volts applied to the control winding.
In another application, the anode
Model Q6-2 (left)-is offered by Sorensen. Regulation accuracy is ±0.25%
(line and load combined). Life is exceptional. Response speed is extremely
fast.They come with voltage adjustable
over 2:1 range (Model Q Series) in 6,
current of a multiplier phototube
was indicated directly on a millivolt recorder. Anode current was
Also in 0.36, or 0-75 vdc continuously
variable "Rangers" (Model QR Series)
passed through the control winding
and the load winding was coupled
to the recorder.
Input current of one jka produced
a full-scale recording on a 2-mv recorder. Currents as low as 10-" amp
Here's a d -c workhorse for
rack -panel equipment-New Sorensen
Model MD supplies feature magnetic
12, 28 vdc and capacities to 200 watts.
of 150 -watt capacity.
were measured using a battery -
regulation, semiconductor rectifiers,
capacitance -input filters-and low cost.
What's more you get any factory preset
voltage you want, from 2.5 vdc to 1000
operated electrometer between multiplier phototube and amplifier.
vdc. Available in 8 sizes from 25 to
3000 watts. No switches, no fuses
(short circuited output is not recommended, but is not damaging). Ideal
Photocells Enable
Paraplegics to Type
for powering your 19" rackpanel
equipment.
Sorensen has many other ideas for packaging power to your needs, including
standard off -the -shelf models, both electronic and transistorized, to take care of
almost every need for controlled power-whether ac or dc, low or high voltage, low
or high current. Ask for the latest Sorensen catalog. And let Sorensen engineers
talk over with you a complete power system for your complex electronic equipment.
B.6
SORENSEN & COMPANY, INC.
Richards Avenue, South Norwalk, Connecticut
Photoelectric cell panel board enables
paraplegics to operate typewriter at
speed approaching 30 words a minute.
Device was developed by Dr. Alan
Ziskind, Boston University School
Medicine, and Richard Ziskind.
of
WIDEST LINE OF CONTROLLED -POWER
EQUIPMENT FOR RESEARCH AND INDUSTRY
IN EUROPE, contact Sorensen-Ardag, Zurich, Switzerland. IN WESTERN CANADA, ARVA.
IN EASTERN CANADA, Bayly Engineering, Ltd. IN MEXICO, Electro Labs, S. A., Mexico City.
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 59 READERS SERVICE CARD
99
COMPONENT DESIGN
mmommismEmmi
m
mommestmeamo
4110
`t%
o
4i
flo
FIG. 1 -Front -panel view of universal bridge showing how dial
mechanism places decimal point
FIG. 2-Center rack and pinion move Plexiglas into position to
select desired impedance range
Bridge Features Automatic Dial
ratio arm bridge, Wayne Kerr Co.,
Ltd., of Chessington, Surrey, England, found that a new dial mechan-
of final balance to four significant
figures can be obtained readily.
Standards employed are resistive
and capacitive. By positioning the
ism would be necessary to cope with
two
the range of measurement of the
shown in Fig. 1, the sense of the
instrument. Conventional methods
using skirted dials with numerous
ranges and multiplier factors were
connections of the standards to the
transformer are reversed. This action provides for measurement of
IN DEVELOPMENT of a transformer
urement, provide a minimum of
four significant figures in discrimination of final balance.
FIG. 3-Range switch is connected to
transformer tappings by rotary step
switch shown in center
Multiplying factors were eliminated by having the range switch
place the decimal location in the
two apertures as shown in Fig. 1.
By rotation of the range switch, the
center rack and pinion shown in
Fig. 2, move the large, clear Plexiglas into position to select the deThe
range switch is connected to the
transformer tappings by a rotary
step switch, as shown in Fig. 3.
Human error is obviated by auto-
tor of 0.1 by moving the connection
are placed in the apertures by revolving the six fluted knobs on
to the transformer to another tap-
either side of the range switch.
transformer turns.
The instrument is distributed in
the United States by Wayne Kerr
Corp., Philadelphia, Pa.
Two knobs are for decade switching and one for vernier adjustment
for each variable. By rotating the
plates are moved into position by
the rack and pinion mechanisms.
Decade knobs are marked from 0
to + which represents the number
ping to accomplish a 10:100 shift in
Four -Conductor
Stretch Cable
10 to allow for range overlap. Decades are connected to the standards
and transformer tappings by rotary
step switches.
The large dial scale is eliminated
by this technique. A direct reading
INERTIA LOADS of 800 G's are withstood by Stretch Wire Corp.'s
is provided that automatically inserts the integers, decimal location
and units of measurement in the
an easy extension factor of 200 per-
apertures.
over 500,000 cycles in a flexing test
without breakdown.
Electrical
characteristics are : resistance, 0.55
matic placing of the decimal and
By full use of the two decades
the units of measurement. Integers
and one variable, the discrimination
100
provides for the shifting of the effective impedance of one standard
with respect to the other. In effect,
the capacitance is shifted by a fac-
decade switches, the black engraved
Design Features
sired range of impedance.
switches,
the complex plane. Also, one switch
An automatic dial mechanism
multiplying factors. Eliminate a
large calibrated dial scale. Provide
an automatic, numerical display of
two measured variables, both resistive and reactive, with a minimum
of manipulation. And, in any meas-
selector
an impedance in any quadrant of
too cumbersome.
was designed with the following optimum design criteria : Eliminate
winged
SWA-4 four -conductor cable. De-
signed for use on any requirement
of 50 w or less, the cable shown in
the accompanying illustration has
cent and return.
Individual conductors will take
December 19, 1958-ELECTRONICS engineering issue
NOW
GYRO
PACKAGES
IN ANY
PLANE
New accessory permits Genisco C181 Rate of Turn Table
to be operated at any angle from horizontal to vertical
Fred Davenport, Lockheed radio -radar technician, tests
pitch -yaw gyros used in the Electra, Lockheed's fast,
new prop -jet, on the first tiltable Genisco C181 Rate of
Turn Table.
A new, vertical -drive accessory permits the C181 to oper-
ACCESSORIES ADD TO
ACCURACY AND CONVENIENCE
OF THE C181
Braking System-Generates a step
ate in any position. Now, gyros or complete gyro packages
impulse of angular deceleration.
Particularly useful in evaluating
damping characteristics of rate
either side of center, without changing the test set-up.
With the accessory installed, overall performance -of the
turntable is unaffected by its position. Rotation is infinitely
variable from 0.01° to 1200° per second. Constancy of
Slip Clutch-Allows table to be
can be tested at any angle up to 90° from horizontal,
angular velocity is within 0.1%, including wow and
drift errors.
gyros and angular accelerometers.
Precision Strobe-For use in monitoring rates where line frequency is
questionable or where gyro accuracy is better than line frequency.
stopped by hand for minor adjustments to test package while drive
system continues to operate.
Low Rata Readout-For accurate
rate indication below 10°/sec.
Mounting Stands-Available in portable, fixed and the new tilt models.
The new vertical drive accessory can be installed at the
factory, and is also available in kit form for modification
by users of machines already in the field. The new tilt
stand (shown above) provides a convenient method of
tilting and accurately positioning the
machine at any angle.
Detailed information on both the vertical drive accessory and tilt stand is
INCORPORATED
available and will be sent upon request.
More than 400 Genisco Rate of Turn Tables are now in use.
zv_prenisc
2233 FEDERAL AVENUE LOS ANGELES 64, CALIFORNIA
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 60 READERS SERVICE CARD
101
SILICONE RUBBER
NEOPRENE OR
NYLON JACKET
FLIGHT DATA and
CONDUCTOR
CONTROL
NYLON INSULATOR.
ENGINEERS
ELASTIC CORE
Cross new frontiers in system
electronics at The Garrett Corporation.
High-level assignments in the design and development of system electronics are available for engineers in
the following specialties:
1 STRAND STRETCH -WIRE
O
CROSS
1. ELECTRONIC AND FLIGHT DATA
SYSTEMS AND CONTROLS A wide
SECTION
4STRAND STRETCH -WIRE
choice of opportunities exists for
creative R & D engineers having
SILICONE RUBBER NEOFRENE NYLON
specialized experience with control
ohm per conductor per relaxed foot
-0.18 ohm extended; inductance,
0.30 phy ; capacitance, 44 tii/f per
relaxed foot and insulation between
conductors will withstand 900 v.
The New Rochelle, N. Y. firm also
has in production one-, two- and
three -conductor constructions. Ter-
minations are available in spade,
round, flag or as required.
New Synchro Design
Makes Accurate Units
NEW MIL SPEC S-20708 spells out
greater accuracies for 60- and 400 -
cps synchros than the specs it supersedes. But at least one manufacturer is in production with units of
greater accuracies than called for
by the new spec. The firm is the
Ketay Department of the Norden
Division of United Aircraft Corp.
SPECIAL RESISTORS
FOR YOUR DESIGNS
Stab -on terminals and a square hole for
positive -lock mounting . . . typical of
the special resistors available from Gen-
eral Electric. No matter what your
needs, G -E resistors can be designed to
your exact requirements. For your resistor catalog, follow reader service instructions below. General Electric Co.,
784-16
Roanoke, Virginia.
in Commack, L. I. The design technique used is known as Thru-Bore
construction.
Five -Minute Accuracy
ELECTRIC
CIRCLE 61 READERS SERVICE CARD
102
2. SERVO -MECHANISMS AND
ELECTRO-MAGNETICS Requires engineers with experience or academic training in the advanced design, development
and application of magamp inductors and
transformers.
3.
FLIGHT INSTRUMENTS AND TRANS-
DUCERS
1) DESIGN ANALYSIS
Requires engineers
capable of performance analysis
throughout preliminary design with
ability to prepare and coordinate related proposals.
engineers
skilled with the analysis and synthesis
of dynamic systems including design
of miniature mechanisms in which low
2) DEVELOPMENT Requires
friction freedom from vibration
effects and compensation of thermo
expansion are important.
4. PROPOSAL AND QUALTEST
ENGINEER
For specification
review, proposal and qualtest
analysis and report writing assign-
ments. Three years electronic,
the users of synchros, primarily
the military, to completely revise
Forward resume to:
Mr. G. D. Bradley
current specifications with regard
to accuracy. There are now available synchros with accuracies of
better than five minutes and less on
normal production runs -35 to 50
newest Navy specifications, thereby
GENERAL
anisms, circuit and analog computer
designs utilizing transistors, magamps
and vacuum tubes.
Bernard Levine, General
Manager of Ketay states, "This
new concept of design will enable
Mr.
percent more accurate than the
Avgress /s Our Most Important Product
devices such as: transducers, flight data
computers, Mach sensors, servo -mech-
giving system designers a new
availability of accuracy and relia-
electrical or mechanical experience required.
Nur
THE GARRETT CORPORATION
9851 S. Sepulveda Blvd.
Los Angeles 45, Calif.
DIVISIONS:
Angeles
AiResearch Manufacturing-Los
Manufacturing-Phoenix
AiResearch
AiResearch Industrial
Air Cruisers Airsupply
Aero Engineering
AiResearch Aviation Service
bility. This Thru-Bore construction
CIRCLE 62 READERS SERVICE CARD
December 19, 1958 - ELECTRONICS engineering issue
THE NAVY'S FIRST
WEAPON SYSTEM ...
The A3J "Vigilante,"
equipped with vital
AiResearch subsystems
Rc m Air Turbine
Refrigeration Package
Centralized Air Data Computing System
North American Aviation's twin -jet
A3J "Vigilante" is the Navy's newest attack weapon system ... an allweather, carrier -based, 30,000 lb.
thrust aircraft which delivers both
conventional and nuclear weapons
from high or low altitudes at supersonic speeds.
Contributing to the success of the
vides information for the major
System Components for person-
valves and electro-mechanical
first aircraft produced under the
nel and compartment air condition-
equipment.
Navy's weapon system management
concept is the following AiResearch
equipment:
ing and pressurization include:
Systems engineering, support
cabin pressure regulators, safety
valves, cabin refrigeration package,
services and systems management
have enabled AiResearch to inte-
AiResearch Centralized Air
equipment compartment refrig-
grate these vital subsystems into
Data Computing System pro -
eration package, primary heat
North American's A3J.
-4pr
flight data subsystems dealing with
bombing, navigation, engine inlet
control, radar, automatic flight control and includes cockpit indicators
showing true air speed, altitude and
engine inlet air temperature.
AiResearch Environmental
exchangers, pressure suit heat exchangers and water -alcohol tanks
for evaporative cooling.
AiResearch Ram Air Turbines
provide power for operation of surface controls, instrumentation and
landing.ear
in case of emergencies.
b
Also included are miscellaneous
ENGINEERING REPRESENTATIVES. AIRSUPPLY AND AERO ENGINEERING. OFFICES IN MAJOR CITIES
TILE GAR R ETT CORPORATION
AiResearch Manufacturing Divisions
Los Angeles 45, California Phoenix, Arizona
Systems, Packages and Components for: AIRCRAFT, MISSILE, ELECTRONIC, NUCLEAR AND INDUSTRIAL APPLICATIONS
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 63 READERS SERVICE CARD
103
.
tiii
III
41,1"
=11111111111111111
'One Mr
Irl
FIG. 1-Simplified cross-section of old
synchro (above) and new (below)
is providing greater stability over
a broad temperature range coupled
with increased ruggedness."
Error Sources
Reference to the simplified crosssectional views of new and old Mil
units manufactured by Ketay in
test
... test ... test ...
If you feel you must make your own pots to get exactly what you need,
don't overlook quality control along the way! And this can be a messy
business, what with special, elaborate techniques to quality -check
every production stage! Oh, you'll get involved in maddening bouts
with visual comparitors, ratiometers, environmental testing labs - and
when you've finished - and made a few hundred revisions - you
might have the quality you want!
So, before you go Hy a kite - consider Ace. We've been all through
this before, and have -what is regarded to be the finest
quality control system in the industry. It enables us to
keep our final costs down, by rejecting sub -standards at
each stage, without waiting for the final inspection. Although it's more work this way, we can offer a higher
degree of resolution and linearity at a lower price. So,
for precision -at -price, see your ACErep!
Fig. 1 will aid in understanding the
means by which the increased accuracies come about. In the old
type, the primary factor contributing to error is nonuniformity of the
air gap between rotor and stator.
A second source of error is possible
nonconcentricity between the bear-
ings and bearing seats, between
the rotor and rotor seat and of the
stator itself. Still another error
source is out -of -round conditions
after assembly.
In the new -style units, there is
only one machining operation with
a resultant decrease in error possibilities. In addition, use of a special potting compound aids in preventing troubles arising from
shock, temperature and humidity.
Because of the increased accuracy of the new construction, a
Here's 0.3% linearity in a '/2" pot: the Series 500 ACEPOT®. Single -
turn, -55° to 125°C range. As with an Ace components, tested in
every stage of its manuf acturel
synchro one or more sizes smaller
than that previously required can
often be used. Even though stainless -steel housings are used for all
new units to avoid clamping problems and to match the temperature
coefficient of expansion of the stack,
ACEELECTRONICS ASSOCIATES, INC.
99 Dover Street, Somerville 44, Mass.
LSOmerset 6-5130 TMX SMVL 181 West. Union WUX
Acepotek
104
Acetrire
Acesett
Aceohrn®
CIRCLE 64 READERS SERVICE CARD
Reg. Aopf. for
weight reduction results from the
ability to use smaller sized units
With the new synchros, single speed system accuracy, in many
cases, is as good as that of two speed systems with the older types.
December 19, 1958 - ELECTRONICS engineering issue
Type F: Miniature 1 2 -po-
sition, 30-60° throw, can
be mounted in 1-5/16"
circle; phenolic, Mycalex
or steatite.
Type H: Standard 1 2 -position; 1-7/8" diameter;
15-30-60° throw; phenolic, Mycalex or steatite.
Types J, K, N: 1-17/32"
for
flexibility of layout; inter-
diameter;
I
provides
changeable sections,
Type L or DL: Using dual
eyelet fastening; 18 -posi-
tion; mounts in 2-9/32"
circle, phenolic, Mycalex.
phenolic or steatite.
Special
Switches
Multiple Shafts com-
Type MF: 24 -position
operate snap
switches and potentiome-
switch may be mounted
in
ters; many different sec-
phenolic insulation.
bined
to
2-5/16" circle;
in
tion types.
an INFINITE VARIETY
from standard parts
Series 20: Simple switch
For Printed Circuits:
for tone controls, bond
switching, and talk -listen
Special lug design for insertion into printed circuit
circuits.
boards.
No matter what you need in low -current switches,
you are most sure to find it in an OAK switch design. In the
last 25 years, OAK has produced over a quarter billion
switches-rotary, slider, pushbutton, plug, and door switchesin thousands of variations. Why not take advantage of
OAK's unmatched, switch engineering background . . .
production facilities ... and huge inventory of tooling?
OAK
MFG.
Co.
1260 Clybourn Ave., Dept. G. Chicago 10, Illinois
Phone: MOhawk 4-2222
SWITCHES
ROTARY SOLENOIDS CHOPPERS
VIBRATORS TUNERS
SUBASSEMBLIES
WRITE FOR your copy of the OAK Switch Catalog which
covers the most popular of OAK's standard switches.
*Manufactured under License from G. H. Leland, Inc.
Type 160 Rotary Slider: 7/8" height allows
shallow chassis; leads are
readily accessible.
Type 185: New lever operated version of the
standard Oak rotary
switches.
ELECTRONICS engineering issue - December 19, 1958
Type 130 Pushbutton:
Available with from one
to 24 buttons, 32 contacts
each button.
Type 80 Pushbutton:
Very adaptable. Used in
communication equipment; economical for less
complex applications.
CIRCLE 65 READERS SERVICE CARD
105
PRODUCTION TECHNIQUES
Shaper Ram Drives Core Swager
By M. MASTIN, Packard -Bell Electronic Corp., Los Angeles, Calif.
INSTALLATION of silver washers on
delay line ceramic cores improves
contact and provides
physical support when the washers
electrical
are soldered to the header's coil
mounting plate.
A machine fixture has been devised which positions and swages
the washer on the core 15 times
faster than hand operations permit.
The swaging device can be mounted
on any standard shaper. After the
desired number of cores has been
modified, the device can be dismantled and the shaper returned to normal use.
The setup shown was
mounted on a 20 -year -old 8 -inch
shaper which had been sitting idle.
The swaging device consists of 5
principal parts: an adjustable positioning rod which is driven by the
shaper ram and which alternately
drives and retracts a sliding V block, a swaging anvil, unloading
stop and swaging punch. The unloading stop is pivoted to swing forward under pressure from the
swaging punch. The anvil is fixed.
Parts Loading
Initially, both cores and washers
are loaded into chutes. As each
washer drops into swaging posi-
Washer has been swaged on core at right center. When V -block is fully retracted,
core will drop into unloading chute
its advance, the rod moves the core
through the punch. After engaging
the block, the rod drives the core
through the washer. Pressure from
the punch reduces the inside diameter of the washer in 6 places, swaging it to the core.
As the positioning rod retracts
and drags the block back, the unloading stop prevents the core from
following. Inside the anvil hole is a
spring -loaded ejection rod which
forces the core past the washer
holders. The core drops through a
slot into the unloading chute. A new
core has now entered the block.
tion, it is stopped and held in front
of the hole in the anvil.
The
washers are held by 2 very light
pressure hinges. The cores are
guided into the V -block's groove by
strip metal fingers on the block.
When at the back of its travel,
the adjustable positioning rod retracts the block, dropping a core
into the grove. At the beginning of
CORES
WASHERS
ANVIL
STOP
/1-*
EJECTOR
CORE REMOVAL
Diagram of relative position and motion
of swager parts
106
COMPRESSED AIR cylinders are fre-
quently used at Westinghouse Electric Corp.'s Tv -Radio Division, Me-
tuchen, N. J., to give women the
added muscle required in some assembly line operations.
Operator fatigue was encountered when ordinary clippers were
used to snip the ends of component
leads
PUNCH
ROD
Air Eases Operator's Workload
in printed wiring boards.
Manufacturing engineers rigged
the clippers with an air cylinder so
the operator need only press a trigger. Clipping rate is 2 per second.
The clippers are bolted at the
hinge to a supporting frame. Bicycle chain is strung between the
ends of the handles and the plunger
Chain, spring mechanize clippers
of a small air cylinder is fastened
to the center of the chain. A small
December 19, /958 - ELECTRONICS engineering issue
CUT COSTS -SAVE TIME
VHF TRANSISTOR TESTING
characteristics.
Engineers at Bell Telephone Laboratories measure transistor
left, equipment includes signal
From
set-up.
generator, Federal's Diagraph and special coaxial jig
Eliminate Costly Adjustments,
Calibrations and Conversions .
.
.
Leading transistor developers and manufacturers
save valuable engineering time with the Federal
Diagraph*. Complex reflection coefficients, immittance and other transmission characteristics
are measured by simple adjustments of three
controls. No recalibrating is needed to measure
at different frequencies across the band. Set-up
complex calculatime is cut to a minimum
tions and conversion tables eliminated. Data
are read directly from any of five interchange.
.
.
able charts suitable for filing or reproduction.
Save supervision time ... technicians can operate the Federal Diagraph with greater accuracy
due to the inherent simplicity of measurement
and the built-in "self -checking" system.
For high -frequency transistor testing as well as
general two and four terminal measurements on
coaxial systems-production or laboratory-
routine or development-get greater flexibility
and efficiency over a longer period of time with
the Federal Diagraph.
Write for additional application data.**
Live
demonstrations of the Diagraph are available
by special request on company letterhead.
SPECIFICATIONS
TWO MODELS IN STOCK: FT-ZDU 30 to 300 mc;
300 to 2400 mc.
FT-ZDD
CHARACTERISTIC IMPEDANCE: 50 ohms.
to 2500 ohms;
.
.
0 to 30 db.
0 to 360'; Attenuation
-.-3%; Phase -I-1.5°.
ACCURACY: Amplitude
MEASURING RANGE: Impedance
Phase
.
.
.
1
.
.
.
.
.
.
TERMINALS: Type N.
POWER SUPPLY: 115 volts (or 220 volts), 50 to 60 cycles.
* Manufactured by Rohde & Schwarz
** Complete original paper available on request.
DIMENSIONS: 22" x 14" x 19".
WEIGHT: 135 pounds.
ITT
Industrial Products Division
INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION -250 GARIBALDI AVE
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 66 READERS SERVICE CARD
1001, N.
J.
107
LAPP COOLING
GIVES LONGER LIFE
TO HIGH -POWER
TUBES
Cylinder shoulders weight of chassis
coil spring snaps the handles apart
after each snip.
Another air cylinder is used to
WATER-COOLED
Carrying cooling water which must undergo a change in potential is a
job best handled by Lapp Porcelain Water Coils. These coils are completely
inside and out, providing
vitrified, non-absorbent porcelain,
very low resistance to water flow and eliminating all possibility of contamination in the water. Assuring positive cooling and long tube life, a Lapp Porcelain Water Coil installation represents a permanent investment-a completely
trouble -free cooling system.
AIR-COOLED
Use of Lapp standard -design
tube supports facilitates circuit design, improves production economy, provides interchangeability and easy replacement. They are compact, efficient
and attractive in appearance, with
polished nickel -plated brass hardware permanently attached to the
lift assembled television chassis so
they can be placed in cabinets for
final assembly and test. There is
not enough room to mount the cylinder vertically, so it is mounted
horizontally, using pulley wheels on
either side of the cylinder to translate horizontal motion into vertical
motion.
Fastening the completed chassis
in position in the cabinet is also
air -assisted. The cylinder is placed
on the roller conveyor line at a section hinged to swing up away from
the operator.
The operator first positions the
cabinet, which has been preassem-
bled to the paperboard shipping
pallet. She pushes twin buttons to
upend the chassis, fastens cabinet
body. Equipment manufacturers will
realize a triple service from these
supports, for they support the tubes
and act as an insulator, and channel
air over the fins for maximum cooling of tubes.
WRITE for Bulletin 301 containing
complete description and specification
data. Lapp Insulator Co., Inc.,
149 Sumner Street, Le Roy, New York.
Air tilts conveyor, drives screws
108
CIRCLE 67 READERS SERVICE CARD
December 19, 1958 - ELECTRONICS engineering issue
EQUIP FOR THE SIZE OF THE JOB
JEVIN®
TURRET LATHES
PRODUCE SMALL INSTRUMENT PARTS BETTER
A small precision turret lathe for
second operations and production of
instrument parts. Available in two
collet capacities, 5/16" or 3/16".
The 6 position turret is self indexing and has hardened ways. Turret
holes are 1/2" diameter. Turret
travel 1-5/8". The cross slide has
a swivel side at one end and a rigid
tool block at the other. Lever collet
closer provides quick opening and
Send for catalog M describing complete line of instrument lathes, micro -drilling equipment and accessories.
closing. A variety of turret tools
with 1/2" shanks is available.
Louis Levin & Son, Inc., 3610 S. Broadway, Los Angeles 7, California
CIRCLE 68 READERS SERVICE CARD
theory * design
performance
of electronic circuits
*
ELECTRONIC SEMICONDUCTORS
Just Published. A rigorous and systematic introduction to semiconductor
Physics, developing the subject logically from simple concepts and giving
clear pictures of the conduction mechanism of electronic semiconductors
within the framework of the band model. Among the book's outstanding
features are the treatment of acceleration of electrons, the Zener effect,
etc. Book is a translation of the 2nd German edition of Elektronische
Ha'Netter by Eberhard Spenke. Translated by D. Jenny, H. Kroemer,
E. G. Ramberg, and A. H. Sommer, RCA Laboratories, 430 pp., 163 illus.,
ELECTRON TUBE CIRCUITS
New 2nd Edition Just Published. Discusses and evaluates the fundamental properties of electron tubes and their circuit operations-analyzes
tuned and untuned amplifiers-and takes up in detail circuits essential
to modern electronic systems such as voltage, video, and power amplifiers; waveform generators; oscillators; modulators, etc. Scores of practical examples show yOU best applications of theory. By Samuel Seely,
Case Inst. of Technology. 2nd Ed. 695 pp., 739 illus., $10.50
BASIC FEEDBACK
CONTROL SYSTEM DESIGN
$11.00
Bases the study of feedback control system design on
complex frequency plane analysis-the root -locus. A wide range of
Just Published.
RANDOM SIGNALS AND NOISE
Just Published. An introduction to the statistical theory underlying the
study of signals and noises in communications systems. Contains an
introduction to probability theory and statistics, a discussion of the
statistical properties of the Gaussian random process, a study of the
results of passing random signals and noises through linear
and nonlinear systems, and an introduction to the statistical
theory of the detection of signals in presence of noise. By
William B. Davenport, Jr., and William L. Root, Lincoln
Laboratory, M.I.T. 393 pp., illus., $10.00
NUMERICAL ANALYSIS
Just Published. Covers the topics most directly needed for a
clear understanding of methods used in numerical solution of
differential equations, both ordinary and partial, and in the
solution of integral equations. Clearly explains the use of
finite -difference methods in obtaining numerical solutions to
Problems-emphasizing procedures which can be most readily
programmed for an electronic digital computer. Many helpful
techniques such as the use of lozenge diagrams for numerical
differentiation and integration are supplied. By Kaiser S.
servo transducers and components are covered. Recent advances covered
include a section of gyroscopes and force -balance transducers, inertial
navigation; analysis of nonlinear systems such as the describing function technique and phase plane analysis. Frequency methods,
such as Nyquist and Bode, are included. By C. C. Savant,
Jr., U. of Southern Cal. 418 pp., Illus., $9.50
SEE ANY BOOK 10 DAYS FREE
eGraw-Hill Book Co., Dept. FL -12-19 327 W 41st St., New York 36
Send me book(s) checked below for 10 days' examination on
approval. In 10 days I will remit for book(s) I keep plus few
cents for delivery costs, and return unwanted book(s) postpaid.
(We pay delivery costs if you remit with this coupon-same
return privilege.)
Spenke-Elect. Semiconductors, $11.00 Kunz-Numerical Analysis, $8.00
Davenport & Root-Random Signals, $10.00 Seely-Elect. Tube Circ., $10.50
Savant-Feedback Cont. System Design, $9.50
Name
City
Position
Address
Zone
State
Company
For price and terms outside U.S., write McGraw-Hill Int'l., N. Y. C.
FL-12-lt
Kunz, Ridgefield Research Lab. 381 pp., 40 illus.. $8.00
ELECTRONICS engineering issue - December 19, 1958
109
and chassis with self -tapping screws
and an air -driven screwdriver, releases a safety catch and presses a
return button. The assembly is
shoved to the next station when
the conveyor sections line up.
The tote tray holding small parts
for the operation hangs free beneath the tilt section of the conveyor. The pallet is cut away to
accommodate the screwdriver. Conveyor rollers are replaced with skate
wheels.
While tilted, the cabinet
rests on padded uprights which tilt
with the conveyor section.
Refrigerant in Coils
Dries Vacuum Coater
HUMIDITY
LESSENS
efficiency
of
vacuum metallizing equipment and
other vacuum production equipment, particularly in warm climates. Water vapor imposes an exAIRPAX TYPE 371
tra load on the diffusion pumping
system.
Best way to remove this mois-
AVAILABLE IN PLUG-IN
OR BRACKET MOUNT
ture from equipment and work
pieces, according to F. J. Stokes
Corp., Philadelphia, Pa., is with a
refrigerated cold trap which condenses the vapor to ice before it
reaches the pumping system.
The Airpax type 371 chopper is designed
to provide reliable operation under extreme
conditions of shock and vibration. Its center
pivoted armature permits it to function dur-
The firm has mechanically refrigerated cold traps which consist
ing shocks of 15 G amplitude over a fre-
uum valve. A compact compressor
supplies refrigerant to the coil,
quency range of 10 to 2500 CPS, with less
than 15 degrees of contact derangement.
Mechanical shocks of 50 G in any plane will
not damage this chopper.
Drive is 6.3 volts, 400 CPS, and operating
temperature range is from - 65°C to 125°C.
Hermetically sealed, the type 371 is operable in relative humidities to 100%. Infor-
of a cooling coil in an adapter
flange for, mounting between the
diffusion pump and the high vackeeping its temperature at -115 F
or lower.
The location of the coil isolates
it from atmospheriC and roughing
pressure, minimizing ice buildup.
It also isolates it from the metallizing heat. Ice is removed by recycling hot gas from the compressor.
mation signals up to 100 volts DC at a
maximum current of 2 ma, can be converted
to a 400 CPS modified square wave.
Fluorescent Epoxies
Show Voids in Coat
FLUORESCENT EPDXY bonding, coat-
ing and potting compounds by Carl
H. Biggs Co., Los Angeles, Calif.,
contain a built-in method of testing
for skips and voids. The voids show
THE AIRPAX PRODUCTS COMPANY
CLA
110
Cambridge Division, Cambridge, Md.
CIRCLE 69 READERS SERVICE CARD
up as dark areas when the plastic
is viewed under black light after
application.
December 19, 1958 - ELECTRONICS engineering issue
P&B MICRO -MINIATURE RELAYS LEAD IN
performance
SHOCK: 100g* VIBRATION: 30g to 2000 cps--
r
1
/
-
DUAL
COILS
PERMANENT
MAGNET
6-
*NO CONTACT OPENING
73
I..-
211
Vibration: 30g 55 to 2000 cps.; 0.195" max.
excursions from 10-55 cps.
New P&B crystal -case size relays,
the SC and the SL (magnetic latching), show amazing shock and vibration capabilities. They absorb shocks
of 100g and vibrations 30g to 2000
cps. without contact openings!
A highly efficient magnetic structure utilizing a permanent magnet
makes possible at least twice the con-
tact pressure found in DPDT relays
of comparable size. One watt of power
for three milliseconds operates either
relay. Transfer time is unusually fast
-0.5 milliseconds maximum.
For more information, contact your
P&B sales engineer, or write Potter
& Brumfield, Princeton, Indiana.
P VTR
Temperature Range: -65° C. to + 125° C.
-r
SL
SC
+.359
SL-dual coil latching relay. Operates on a 230
mw, 3 ms. pulse at 25° C. Permanent magnet
latch locks the armature in either position.
SC-non-latching relay with series -connected
dual coils. Operates on approximately 260 mw
at 25° C. Coils must remain energized to hold
the armature in the operate position.
SC SC and SL Series Engineering Data
GENERAL:
Insulation Resistance: 10,000 megohms, min.
Breakdown Voltage: 1,000 V. RMS.
Shock: 100g for llms.
Weight: 15 grams without mounting bracket.
Operate Time: 3 MS. max. with 550 ohm coil
@ 24 V. DC. (SL: 630 ohm coil at 24 V. DC).
Transfer Time: 0.5 MS max.
Terminals: (1) Plug-in for microminiature
receptacle of printed circuit board.
(2) Hook end solder for 2 #24 AWG wires.
(3) 3" flexible leads.
Enclosure: Hermetically sealed.
CONTACTS:
Arrangement: 2 Form C.
Load: 2 amps C.4) 28 V. DC, resistive; 1 amp
@ 115 V. 60 cycles AC, resistive.
Pressure: SC -16 grams min.; SL -20 grams min.
COIL:
Power: SL -230 mw @ 25° C.
SC -260 mw @ 25° C.
Resistance: SI-10,000 ohms per coil max.
SC -20,000 ohms max.
Duty: Continuous.
MOUNTINGS:
Bracket stud and plug-in.
P&B STANDARD RELAYS ARE AVAILABLE AT YOUR LOCAL ELECTRONIC PARTS DISTRIBUTOR
B MIXO[IREL115)
PRINCETON, INDIANA SUBSIDIARY OF AMERICAN MACHINE & FOUNDRY COMPANY
CIRCLE 70 READERS SERVICE CARD
NEW PRODUCTS
compound which offers outstanding durability under mechanical
shock and provides extreme stability. The new series has eight
sizes, ranging from 7/64 by 5/16
in. to 5/16 by 2 1/16 in.; with a
selection of five wattage ratings,
Insulated Resistors
subminiature
DAL]. PRODUCTS, INC., Box 136,
Columbus, Neb., announces deposited carbon film resistors that
are fully insulated and yet maintain subminiature size. Type DCF
resistors
are coated with a new
*, 1, I, 1 and 2 w. Resistance range
is from 1 ohm to 50 megohms,
depending on size and type. Standard tolerance is 1 percent. Circle
300 on Reader Service Card.
announces a new series of low cost
diffused silicon rectifiers. Featuring
an average rectifier forward current
of 750 ma, the units are packaged
in a nylon -cased epoxy capsule and
pass MIL -STD -202A immersion
tests. This shell provides an insulated case with minimum lead-
to -case insulation resistance of 10'
ohms at 600 v. Typed as the
1N2069, 1N2070, and 1N2071,
the three silicon rectifiers have peak
inverse voltages of 200, 400 and
600 v, respectively. They also high-
Silicon Rectifiers
epoxy encapsulated
TEXAS INSTRUMENTS
INC.,
light a six -ampere recurrent peak
current and a surge (turn -on) current over 32 amperes for one milli6000
Lemmon Ave., Dallas 9, Texas,
second. Circle
Service Card.
301
on
Reader
Voltage Quantizer
differential amplifier which continu-
transistorized
into 16 discrete levels and provides
a vernier or residue voltage repre-
HOOVER ELECTRONICS CO., 110 W.
senting the analog scale between
Timonium Rd., Timonium, Md.
quantized
Vernitel, a new instrumentation
technique, may be added to existing
f-m/f-m transmission systems to
these voltages is used to control a
standard f -m subcarrier oscillator.
Circle 302 on Reader Service Card.
ously
give them the accuracy of pcm. It
consists of a special quantizer and
separates an input voltage
increments.
Each
of
H -V Capacitors
within a short time constant. They
low inductance
foil
AXEL ELECTRONICS DIVISION, Axel
trodes are held in a hermetically
feature precision -rolled aluminum
electrodes separated by poly-
ester film dielectric. Assembled elec-
Bros., Inc., 134-20 Jamaica Ave.,
sealed, liquid -filled phenolic case,
Jamaica, N. Y., has available a line
of tubular capacitors with low inductance for h -v service. The low-
cost energy storage capacitors are
and are electrically connected to the
designed for fast discharge applica-
metal end caps. Circle 303 on
tions requiring high peak energy
Reader Service Card.
Ruggedized Vidicon
characteristics.
short length
GENERAL
The nonmicrophonic camera pickup tube is built
to exceed the requirements of
MIL -E -5272A. It will give quiescent
ELECTRODYNAMICS
picture quality under severe noise,
CORP., Garland, Texas. The 7226A
vibration
conditions.
out damage to the photoconductive
vidicons feature 150 ma heaters,
surface, even in severe environ-
5.150 in. overall length, increased
The GEC particle shield permits
the operation of these tv camera
sensitivity and improved persistence
pickup tubes in any position with-
ments. Circle 304 on Reader Service Card.
Phase Meter
high frequency
me with an accuracy of 0.05 deg
or 1 percent of the dial reading.
and
shock
112
It is especially suitable for measur-
249 Terhune Ave., Passaic, N. J.
ing phase angle or time delay of
radar i-f amplifiers and other h -f
A new high frequency phase meter
can be used from 15 me up to 500
transmission systems where phase
shift is important for faithful re -
AD -Yu ELECTRONICS
LAB.,
INC.,
December 19, 1958 - ELECTRONICS engineering issue
li
10
NO ROOM FOR ERROR...AT THE COUNTDOWN...
Linear accelerometer needs no heater jacket-reliability and accuracy from
-65°F TO +200°F
When critical missile and aircraft testing demands an accelerometer
of accurate, reliable operation over wide temperature range, specify
Statham Model A501.
The remarkable design feature of the Model A501 lies in the use
of gas damping. This method of damping permits the operation of
the unit over a -65°F to +200°F range without use of a heater
Range:
Excitation:
±5 to ±50 g
5 volts DC or AC (rms)
±20 millivolts
Output:
Non -linearity
and Hysteresis: Not more than
±1% full scale
Weight:
61/2 ounces
jacket. It produces-flat up to 500 cycles per second - reliable signals of rapidly changing acceleration.
Statham instruments are specified by leading manufacturers and
government facilities...wherever accuracy, reliability, and superiority are required.
For detailed technical data to answer your application needs,
accuracy /integrity /reliability
write for Bulletin Number A501TC.
Statham Instruments, Inc.
ELECTRONICS engineering issue - December 19, 1958
12401 West Olympic Boulevard, Los Angeles 64, California
CIRCLE 71 READERS SERVICE CARD
113
NEW...FROM
THE PANEL METER
WITH THE BUILT-IN
NATURAL READ/NG ANGLE
production of intelligence. The in-
strument consists of two parts: a
phase indicator unit and a time
delay unit. Circle 305 on Reader
Service Card.
Capacitors
high temperature
spRAGIT ELlicrmic Co., 35 Marshall St., North Adams, Mass.,
introduces its new stacked -foil Fabmika capacitors designed for oper-
ation at high temperatures. They
rely on a new dielectric for their
heat resistant properties. This diHere is the newest, freshest meter styling idea in years: The
A.P.I. Model 561 . . the slim, trim panel meter with the longer,
larger dial you read like a book. Subtly recessed and correctly
sloped at the natural reading angle, this meter gives you 30% more
dial area in 15% less panel space. Back -of -panel mounting neatly
conceals the meter movement; only the clean, crisp façade of the
dial is exposed, a clear picture window.
Installation is easier done than said. The 5" x 27/8" case frame is
self -trimming, requires a simple panel cutout-no holes to drill, no
stud alignment troubles. A window in the meter case provides for
dial illumination, you can save a bit of work (and panel space) by
using the dial light as a pilot.
For the man who needs a smaller meter, there's the Model 361,
an identical but diminutive companion to the Model 561. It measures just 31/2" x 2". Both models are molded of satin -finish Bake.
electric consists of especially processed silicone -bonded mica paper.
It can function effectively at tem-
peratures up to 260 C, and,
in
special designs, up to 310 C. Engineering bulletins 1500, 1510, and
1520, giving complete details, arc
available on letterhead request.
lite, and both can be had in ranges of 0-5 microamperes to 0-50
amperes or 0-5 millivolts to 0-500 volts.
140
130
120
\\V.\ \
\\\\
\.\
\\\\\NAll
4
Flat Cable
150
0,\\\ A111111 111111 gin/
///////
I tlitt/00///
multiconductor
1//60
SPECTRA -STRIP WIRE & CABLE
/./
CORP., P. 0.
10
Box 415, Garden
Grove, Calif. Precision wiring can
now be made routine by using
Spectra -Strip flat cable. Intercon-
MORE INFORMATION? SEND FOR DATA SHEET 10-A
ASSEMBLY PRODUCTS, INC.
Chesterland 4, Ohio
CIRCLE 72 READERS SERVICE CARD
harness and even
if one terminal board were corn 200 -conductor
S.A. 1E151
114
ductor capacitance is controlled by
the relative position of the wires in
the cable, and is uniform from
cable to cable. This enables a harness to be engineered for maximum
electrical efficiency. Illustrated is a
December 19, 1958 - ELECTRONICS engineering issue
.11
pla0101111 To provide an output Potentiometer -Transducer
which can be readily engaged with a minimum
61
angular error to a servomechanisms gear train when energized
pletely out of sight, any circuit
could be located at the other end
immediately by its position in the
cable. Circle 306 on Reader Serv-
by an external command signal. The transducer must
accurately return to a specified null position when the command signal is removed.
ice Card.
c,EAR TRA.
-r -
A SOLUTION:
Provide an electro-magnetic
X -Y Plotter
transistorized
ELECTRONIC
ASSOCIATES,
Long Branch, N.
INC.,
Model 205
S&T transistorized Variplotter sets
J.
new standards of speed and reliability in graphical presentation of ana-
log computer output. The instrument packs great speed, large 30
by 30 in. plotting surface, and high
reliability in a small package. Servo
motors operating at 400 cps provide high dynamic speed. Coupled
with the reduced size and weight
(250 lb) are the advantages of flexibility of operating position. It will
operate in any position from horizontal to vertical. Circle 307 on
Reader Service Card.
clutch, spring return
mechanism and rotary
potentiometer. Assemble
these parts into the required
package with the resultant
difficulties brought about by
the mounting and coupling
problems with a consequent
increase in cost.
111
THE OPTIMUM SOLUTION:
unitized
package
Technology Instrument Corporation's west coast engineering
facilities developed and offer
a unitized package consisting of an electro-magnetic
GENERAL
INFORMATION:
clutch, spring return
mechanism and rotary
potentiometer as one
Shaft Position Transducers
can be linear or nonlinear
potentiometers, synchros,
linear transformers or
digitizers. Spring return
mechanism can be supplied
designed to return to any
desired point. A built-in slip
clutch can also be furnished
if the input torque can
exceed the rating of the
clutch.
compact assembly. The
clutch will transmit
high torque without
slippage and has negli-
gible angular engagement
error. TIC's unique spring return
mech-
anism will accurately return the output
transducer to the desired null, yet requires low driving torque.
TIC's unitized assembly replaces three (3) individual components
with their inherent assembly difficulties.
TIC UNITIZED PACKAGE HAS MANY APPLICATIONS,
SUCH AS: Auto pilots, altitude controllers, machine controllers,
measurement and control problems, speed control, process
control of temperature and flow, differential measurement,
expanded scale servos, or any other problem requiring an
output, commencing at some specified servo position determined
by an external command signal.
H -V Generators
electrostatic type
TECHNOLOGY INSTRUMENT CORPORATION
Subsidiaries:
BETA ELECTRIC DIVISION of Soren-
sen & Co., Richards Ave., South
ELECTRONICS engineering issue - December 19, 1958
Technology Instrument Corp. of Calif.
North Hollywood, Calif.
Acton Laboratories, Inc., Acton, Mass.
Tucson Instrument Corp., Tucson, Ariz.
Servotrol, Inc., Chicago, Ill.
Altomac Corp., Canton, Mass.
569 Main Street
Acton, Massachusetts
CIRCLE 73 READERS SERVLCE CARD
1
15
Norwalk, Conn., has available the
complete line of Sames electrostatic generators (so-called from
their
manufacturer,
Societe
Anonvme de Machines Electrostatiques, Grenoble, France). Available with adjustable outputs of 50.
strip
potentiometer
windings
80, 100, 140, 150, 250, 300 and
600 kv, these power supplies have
found wide application in Europe
for testing of cable insulation, alter-
in
nator windings and other dielec-
1/6 less time
and precipitation, electron and nuclear particle accelerators and sim-
trics, flocking, electrostatic painting
ilar applications. Circle 308 on
Reader Service Card.
Silicon Rectifiers
Industrial Airbrasive®
Unit
double -diffused
COLUMBUS ELECTRONICS
CORP.,
1010 Saw Mill River Road, Yonkers, N. Y., has announced double
diffusion processed silicon rectifiers
in the Jetec series 1N536 through
1N540 and in the Jetec series 1N2080 through 1N2086. Available
in hermetically sealed, axial lead
top hat design, the units achieve
high rectification efficiency through
a combination of low forward drop
Removing lacquer or varnish from potentiometer windings to give the
traveler a clean, unimpeded path of travel can be done in seconds with the
Airbrasive Unit. The abrading action can be finely controlled so that only the
varnish is removed. The windings, even when extremely fine wires are used, are
unaffected. Use of a simple jig makes the process automatic and foolproof.
This is just one of the many delicate industrial cutting and abrading operations that can be performed with the Industrial Airbrasive Unit.
Other applications include calibrating precision glassware-removing sur-
and low leakage currents. The devices withstand high overload currents. Other features include 500
to 750 ma rectified current and up
to 600 peak inverse volts without
heat sink. Circle 309 on Reader
Service Card.
face deposits-cutting germanium and other crystalline substances-etching,
drilling and light deburring of hard, brittle materials.
See what the Airbrasive process can do for you. Send sample parts or
call one of our offices for a demonstration.
BULLETIN 5705 has full information. Send for a copy.
czitiA& INDUSTRIAL DIVISION
Dept. EL 10 East 40th Street, New York 16, New York
Western Office: 1839 West Pico Blvd., Los Angeles 6, Calif.
116
CIRCLE 74 READERS SERVICE CARD
December 19, 1958
Microminiature Relay
hermetically sealed
N.
Citrus Ave., Los Angeles 38, Calif.
TELECOMPUTING CORP., 917)
The TC microminiature relay
is
designed for applications where size
and weight are critical. Life expectancy exceeds 1,000,000 cycles at
the full noninductive contact load
ELECTRONICS engineering issue
of 2 amperes, 28 v d -c at 125 C
ambient. On dry circuits a minimum of 10,000,000 operations are
guaranteed. The relay is hermetically sealed for operation from sea
level to 100,000 ft altitude at -65
C to +125 C. Standard 15 g relays
and
models for vibration loads
exceeding 30 g are available. Circle
310 on Reader Service Card.
Miniature Motor
meets MIL -M-8609
WESTERN GEAR CORP., P. 0. Box
182, Lynwood, Calif., announces
design of a new miniature motor,
model 2PP1, rated at 1/100 h -p at
rpm. It has been qualified to
specification. The
26.5 v d -c motor is 1.18 in. in dia-
MIL -M-8609
meter, 1.9 in. long and weighs 31
oz. Life is 500 hr without change
of brushes. Circle 311 on Reader
Service Card.
Which of these radar areas is yours?
Microwave Associates has long had a specialized
and creative interest in lightweight, compact,
high efficiency magnetrons with these features:
STABLE FREQUENCY OUTPUT
MICROWAYI.
Voltage Supplies
ultrastable
AMERICAN ELECTRONIC LABORA-
ASSOCIATES
6229
4",
vS
192
TORIES, INc., 121 N. 7th St., Phila-
RUGGEDIZED CONSTRUCTION
FIXED TUNED AND TUNABLE TYPES
FREEDOM FROM PULSE TO PULSE JITTER.
HIGH DUTY CYCLE CAPABILITIES
EXTENDED OPERATING LIFE
delphia 6, Pa., has available ultra -
LONG SHELF LIFE
stable low -voltage, high current d -c
voltage supplies. Units are avail-
If you need to get the most from magnetrons,
write or call for detailed specifications.
able in 6 v and 12 v models. Both
models will supply up to 30 w of
output, and regulation to line variation is 0.01 percent. No-load to
MICROWAVE ASSOCIATES, INC.
BURLINGTON, MASSACHUSETTS BRowning 2-3000
full -load regulation is 0.05 percent.
Output impedance of the 6 and 12
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 75 READERS SERVICE CARD
117
D'Attook4 ELECTRON
TUBE SHIELDS IMPROVE RAYTHEON'S
v units is U.0006 ohm and 0.0024
ohm respectively. Maximum rms
value of noise and ripple is 1 my.
Both units have recovery times of
1 millisec.
Circle 312 on Reader
Service Card.
CAA "FLIGHT TRACKER" RADAR!
Torque Indicator
digital unit
PERFORMANCE
MEASUREMENTS
Co., 15301 W. McNichols, Detroit 35, Mich., announces a new
digital torque indicator that also
supplies an output proportional to
horsepower. With this instrument
IERC Heat -Dissipating Electron Tube Shield
it is no longer necessary to compute
horsepower readings from speed and
Solve Critical Thermal/Reliability Problem
torque data. The output from the
mode DTI -2, combined with that
of a d -c tachometer generator, is
fed to a strip chart recorder for a
Raytheon's thermal -conscious engineers were
responsible for early recognition and
localization of a detrimental heat problem
caused by high operative temperatures of
electron tubes. They overcame the problem in
the "Flight Tracker" system quickly, easily and economically with
IERC Heat -dissipating Electron Tube Shields - resulting in effec-
changes and ambient temperature
fluctuations. Circle 313 on Reader
tive tube cooling, increased tube life and equipment reliability!
Service Card.
cor.tinuous direct horsepower read-
ing. The unit is claimed to have
exceptional freedom from line voltage variations, servo amplifier gain
Effective Tube Cooling in Critical Circuits!
IERC TR-type shields are used (as shown)
in the Video Integrator panel, a part of the
moving target indicator (MTI) unit of
Raytheon's "Flight Tracker" Radar System.
IERC's Heat -dissipating Tube Shields play
a leading role in dissipating heat from the
tubes in these critical circuits.
Want to improve equipment
performance-reduce maintenance? Write for
free copy of IERC Heat -dissipating Tube,
Shield Guide, today.
HOW ABOUT YOU?
PATENTS 2807659.
2766020 CR PATENT PENDING
IR
delivers 0-32 v
KEPCO LABORATORIES, INC.,
International Electronic Research Corporation
145 West Magnolia Boulevard, Burbank, California
Heat -dissipating electron tube shields for miniature, subminiature and octal/power tubes.
118
CIRCLE 76 READERS SERVICE CARD
V -R Power Supply
131-
38 Sanford Ave., Flushing 55, N. Y.
Model SC -32-2.5 transistorized
power supply delivers 0 to 32 v,
0 to 2.5 amperes. Regulation for
line or load is less than 0.01 per -
December 19, 1958 - ELECTRONICS engineering issue
cent or 0.002 v, whichever
is
greater. Ripple is less than 1 my
rms. Recovery time is less than
1958-59
50 µsec. Stability for 8 hours is less
than 0.01 percent or 0.002 v, whichever is greater. Operating ambient
temperature is 50 C maximum.
Temperature coefficient is less than
0.01 percent per deg C. Output
impedance is less than 0.01 ohm.
Circle 314 on Reader Service Card.
electronics
BUYERS' GUIDE
REVISIONS
Revised and corrected Product Listings
AMPLIFIERS-Transistor
MANUFACTURERS INDEX
Miami Instrument Co. Box 384,
Tamiami Sta., Miami 44, Fla.
Instrument Electronics Corp.,
Ceramic
Feed Through
Fixed Composition
RECTIFIERS-Silicon
NORTH AMERICAN ELECTRONICS, INC., 210-212
Broad St., Lynn, Mass. ADV. PG. 558
High Voltage
Mica
Plastic
HEWLETT-PACKARD
TUBING-Fibre
not TUBING-Fabric
Silvered Mica
dual trace unit
Co., 275 Page
Mill Rd., Palo Alto, Calif.,
has
NATIONAL VULCANIZED FIBRE CO., P.O. Box
311, Wilmington 99, Del. ADV. PG. 360
CAPACITORS-Variable
Trimmer-Ceramic
Tuning-Receiving
ERIE RESISTOR CORP.,
FURNACES-Electric
122A has twin vertical amplifiers
OSCILLATORS-Backward Wave
a
vertical function selector.
The amplifiers may be operated independently, differentially on all
ranges, alternately on successive
sweeps, or chopped at a 40 kc rate.
Engineered to speed industrial, mechanical, medical and geophysical
measurements in the 200 kc range,
model 122A triggers automatically
and has a maximum sensitivity of
10 my/cm. One knob selects any of
15
calibrated
sweeps
from
5
µsec/cm to 200 millisec/cm in a
sequence. Circle
Reader Service Card.
1-2-5
315 on
Pa. ADV. PG.
Erie, 6,
140, 141
available a new 200 kc oscilloscope
with dual trace presentation. Model
and
Box 830, 90
Bold facing and advertising page
number omitted in the following:
CAPACITORS-Fixed
Oscilloscope
P.O.
Main St., Port Washington, N. Y.
ULTRASONIC EQUIPMENT
BRANSON ULTRASONIC CORP., 1 Brown House
Rd., Stamford, Conn. ADV. PG. 557
STEWART ENGINEERING CORP., Box 277, Soquel,
Calif. ADV. PG. 456
Corrected Addresses
GENERATORS-Ultrasonic
ULTRASONIC EQUIPMENT
Instruments,
Stamford, Conn.
Branson
Inc.,
1
Brown House Rd.,
CASES
Diode & Transistor
Instrument & Meter
INFRARED EQUIPMENT
Barnes Engineering
ford, Conn.
CANS
Co., 30 Commerce Rd., Stam-
METAL PARTS
Deep -Drawn
Small Metal Stampings
HUDSON TOOL & DIE CO., INC., 18-38 Malvern
St., Newark 5, N. J. ADV. PG. 203
INVERTERS-DC-AC
Continental Electric
Newark 5, N. J.
334
Inc.,
Co.,
St.,
Ferry
COILS
MICROWAVE ACCESSORIES OF ALL TYPES
M icrotech,
Inc.,
2975
State St.,
Hamden,
Conn.
a -f Choke
Choke
Filter Choke
r -f Choke
r -f Choke, Heavywire (Low Voltage)
MOTORS-Servo
DYNAMIC INSTRUMENT CORP., 59 New York Ave.,
portable model
FRANKLIN
ELECTRONICS
RELAYS
Westbury, N. Y. ADV. PG. 540
Digital VOM
Power
Rotary
Sensitive
TOROIDS
INC.,
TORWICO ELECTRONICS, INC., 1090 Morris Ave.,
Union, N. J. ADV. PG. 461
TRANSFORMERS-Power
TRANSFORMERS-r-f & i-f
TRANSFORMERS, Miniature
Bridgeport, Pa. A new low-cost,
portable, digital volt-ohmeter accu-
rately measures d -c from 0.01 to
1,000 v, positive or negative; a -c
from 0.01 to 1,000 v up to 100 kc;
Industries, Inc.,
Chicago 40, III.
Radio
ELECTRONICS engineering issue - December 19, 1958
5225
Ravenswood
Ave.,
Voltage Regulating
Douglas Randall, Inc., 6 Pawcatuck Ave., Westerly,
R.
I.
121
ENGINEER OPPORTUNITIES AT RAYTHEON
and resistance from 10 ohms to
1
megohm. Easy -to -read visual dis-
play of all readings appears on a
prominent bank of illuminated
numbers arranged in three columns
on the front panel. Circle 316 on
Reader Service Card.
FLIGHT TEST READY TO START as Raytheon engineer conducts final check.
He works with some of our country's top design engineers on aircraft navigational and guidance systems.
Help design new coherent radar systems
for aircraft navigation and guidance
Small project groups with full systems responsibility, working on
the most interesting and advanced radar and navigational problems of the day - this is the atmosphere at Raytheon's Maynard
Laboratory.
A company with many engineer-managers-experienced executives with young ideas-tends to create an exceptional environment
for your professional development. Other Raytheon benefits:
excellent starting salaries, regular reviews for merit increases;
town or country living in beautiful New England.
We now have opportunities for men at all experience levels in:
Thyratron
spade -type lugs
Ixc., 127 Sussex Ave.,
Newark, N. J., announces a new,
compact xenon -filled thyratron for
ignitron firing and motor control.
Termed the ELC3J/L, the tube
has spade lug connections to elimin-
ate tube failure due to poor socket
connections. Since it contains no
mercury, neither its life nor reliability of control arc adversely
affected by ambient temperatures
or mounting position. Circle 317
on Reader Service Card.
SYSTEMS ANALYSIS &
ENGINEERING
TECHNICAL WRITING
ANTENNA DESIGN
SPECIFICATIONS WRITING
ELECTRONIC PACKAGING
ADVANCED CIRCUIT DESIGN
MICROWAVE
DESIGN
For complete details on engineering positions in any of Maynard's
project groups, please write John J. Oliver, P.O. Box 87E,
Raytheon Maynard Laboratory, Maynard, Mass.
RAYTHEON MANUFACTURING COMPANY
Maynard, Massachusetts
Are you the
ONE MAN IN THREE?
Tiny Capacitors
metallized paper
North
Calif.,
series
MAYNARD LABORATORY
Excellence in Electronics
122
PRODUCTS Co., 430
Halstead Ave., Pasadena,
announces the new EP
metallized
subminiature
ELECTRON
paper capacitors for use in circuits
employing up to 100 v. Extremely
rugged and reliable, they are de December 19, 1958 - ELECTRONICS engineering issue
Coaxial Attenuators
Terminations
Impedance Transformers
EXPECTING
DC to 2500 mcs.
using type BNC, TNC, and N coaxial connectors
AN
ORDER?
Type HFA/T Attenuator
Type HFT/T Termination
Type HFA Attenuator
Type HFT Termination
You'll get it quicker if
your postal zone number
is on the order blanks,
return envelopes, letter-
Type HFA/N Attenu
Type HFT/N Termin
'NI Type HFAM Impedance
Matching Transformer
heads.
presents an integrated line of coaxial attenuators, terminations, and impedance matching transformers for use in the
DC to 2500 mcs frequency range. To provide the user with a
greater flexibility than heretofore realized, type BNC, TNC,
and N coaxial connectors are incorporated in this family of
attenuators and terminations. The impedance matching transformers use type BNC coaxial conn ictors.
ARI
The Post Office has divided
into
The attenuators and terminations exhibit a nominal impedance
of either 50 or 75 ohms and a maximum V.S.W.R. of 1.2 at
the highest rated frequency.
postal delivery zones to
The impedance matching transformers have been designed to
match, with minimum loss, 50 to ;5 ohms, 50 to 93 ohms, and
75 to 95 ohms, over the frequency range of DC to 1000 mcs.
106
cities
speed mail delivery. Be
sure
to
include
zone
CHARACTERISTICS
IMPEDANCE MATCHING
ATTENUATORS & -ERMINATIONS
number when writing to
HFA & HFT
Model
Input/outputoi,000
ohms
these cities; be sure
to
ber in your return ad-
dress - after the city,
before the state.
Frequency
range (mcs)
Maximum V.S.W.R.
Connectors
50, 75 50, 75
3, 4, 6,
1, 2, 3 4, 6,
10, 12. 15, 20
/ 2, 3, E, 10,
20
20
2,
50
E,0, 75
10, 12, 15, 20
/ 2, 3, 6, 10,
1,
Nominal
attenuation (di))
include your zone num-
50, 75
TRANSFORMERS
HFA/T & MFT/T HFA/N & HFT/N
50
HFAM
75
93
75, 93 50, 93 50, 75
50
2, 3, 4, 6,
10, 12, 15, 20
0
1,
DC -1000
DC -1000
DC.2C 00
DC -2500
1.2 at
1000 mcs
at 0
2000 mcs
1.2 at
2500 mcs
1.2 at 1000 mcs
Type BNC
Type "NC
Type N
Type BNC
For full information and prices write to
1/IMIIMINHOC,
76 SOUTH BAYLES AVENUE, PERT WASHINGTON, NEW YORK
CIRCLE 81 READERS SERVICE CARD
ELECTRONICS engineering issue - December 19, 1958
123
NEW
signed for applications such as wave
filters, transistor circuitry and general electronic use where reduc-
SMALLEST
tion in size and weight limit the
use of larger components. Trian-
ROTARY
SELECTOR
SWITCH
gular,
half -round
sections
and
numerous other form factors are
available in all capacitance values.
Circle 318 on Reader Service Card.
,p.s.
A 5151-01.
WAAL NO 7
00FOFF COMPANY Ag,
L:LI! FALLS. NJ
Servo Amplifier
transistor -magnetic
Co., INC., 1500 Main
Ave., Clifton, N. J., has introduced
KEARFOTT
a miniature high gain transistor magnetic servo amplifier ideally
suited for high speed, high shock
and vibration aircraft and missile
applications. Rated for operation
at temperatures ranging between
- 55 C to + 100 C, the compact
These circuit selectors or stepping relays, model BD2, perform dependable, remote switching jobs such as, stepping
. counting . . . programming . . circuit selecting . . .
.
sequencing . . and homing.
.
.
.
check these features:
Small and light . . the four wafer selector switch is only 0(3" wide, 22%2" long and weighs only 31i
oz.
.
.
.
.
available with 1, 2, 3, or 4 switch wafers .
.
.
amplifier features silicon transistors
in its servo amplifier section, together with an integral fast response magnetic amplifier. The
unit can drive such Kearfott servo
motors as the R119-2, a 115-v unit,
and R124-4, a 26-v motor. Circle
319 on Reader Service Card.
12
positions with silver alloy contacts . . . 12 position floating
flange mounting
ratchets . . . anti -overthrow latch .
avail. . . a choice of ratings from 3 to 300 volts D.C. . .
and designed to
able in hermetically sealed models
meet all applicable environmental tests of MIL -E -5272B.
.
.
.
.
.
.
immediate delivery from stock of standard model,
part No. S-10019-004 ... 3 pole, 12 throw switching, 12 position, notch homing, self -interrupted, 28
volts D.C., flange mounting
i/Le Iva
INC
24
for engineering and stock model
information . . . Bulletins 55852 and 5585T2
Data -Gage
123 WEBSTER ST., DAYTON 2, OHIO
TEXAS INS1 RUNIEN IS
collection/control
INc., IndusInstrumentation Division,
P. O. Box 6027, Houston 6, Texas.
The Data -Gage, previously manutrial
IN CANADA. Marsiond Eng. Ltd., Kitchener, Ontario
IN EUROPE N.S.F. Ltd. 31.32, Alfred Place, London, England
N.S.F. GmbH, Further Strome 101a, Nurnberg, Germany
CIRCLE 77 READERS SERVICE CARD
December 19, 1958 - ELECTRONICS engineering issue
factured by TI as a fluid level data
collecting system, has been ex-
tended to be applicable to any industrial use requiring both data collection and remote control of on -off
devices. The transistorized system is
composed of a receiver console unit
located at the central operating
point; a field selector unit that can
Keep equipment at peak
operating efficiency with
this New, Low -Cost
TIME TOTALIZER !
read and control 100 locations or
be cascaded to control 1,000; a
common analog input unit for all
analog output transducers, and the
necessary transducers and control
elements. Circle 320 on Reader
Service Card.
Preamplifiers
high frequency
A. R. & T. ELECTRONICS, INC.,
1101 McAlmont St., Little Rock,
Ark., announces a complete line of
low noise, high frequency preamplifiers. Standard series A models
are fixed -tuned units available with
flat bandwidths in the range of 50
to 500 mc. Standard series B preamplifiers are available for any center frequency in the range of 100
to 250 mc, with 3 db bandwidths
.............2.5
DIAMETER
IENGTN
of 8 to 20 mc, depending on frequency center. Circle 321
Reader Service Card.
...................
.
5 oz.
on
Trademark Reg. U. S. Potent Office
DIRECT READING COUNTER . .. accurately records oper-
ating time in hours and tenths up to 9,999.9.
. . than any other commercial unit.
SMALLER, LIGHTER .
Gaskets
for rfi shielding
TECHNICAL WIRE PRODUCTS, INC.,
4
48 Brown Ave., Springfield, N. J.
A complete line of gaskets, used to
shield
through
Weighs 5 ounces. Overall length only 21/2".
vibration. OperRUGGED . . . withstands heavy shock aad-55°C
to +71°C.
ates over a temperature range from
Case is dust -tight and oil -tight.
LOW POWER REQUIREMENT . . . 2.5 watts at 120 vac.
COMPLETELY DEPENDABLE . . . utilizes the well known
Haydon Timing Motor.
AVAILABLE . . . for 60 cycle operation at 120 or 240 vac.
The low cost of this new Series ED -71 Elapsed Time Indicator makes it possible to provide an economical, accurate
record of operating time for machine tools, communications
equipment and practically any other type of industrial or
commercial installation. Insures accurate scheduling of maintenance, tool changes and parts replacement. Helps to keep
operating efficiency at a maximum . . . operating and maintenance costs at a minimum. Other Haydon Elapsed Time Indicators of similar size and weight are available for military
applications.
WRITE NOW FOR FURTHER INFORMATION
wire -guide
joints, feed interference filters and
other openings in
shields, arc
die -formed from knitted wire mesh.
rfi
Units can be made in almost any
shape required and a wide range
Haydon
IAT TORRINGTON
of alloys is available to assure corrosion compatibility of the gaskets
with the mating surface of the rfi
ELECTRONICS engineering issue - December 19, 1958
DIVISION OF
IME CORPORATION
GENERAL
2436 EAST ELM STREET
TORRINGTON, CONNECTICUT
HEADQUARTERS FOR TIMING
CIRCLE 78 READERS SERVICE CARD
125
SPECTROL PRECISION POTENTIOMETERS
enclosures. The resiliency of the
How Spectrol uses an
IBM 610 to design better
mesh makes a positive shield possible even where the surfaces of the
enclosure arc uneven. Circle 322
on Reader Service Card.
NON-LINEAR POTS
F
Oscillators
factory pretuned
\ II' ELECTRONICS Co., 122 E. 25th
St., New York 10, N. Y. Series 101
and 102 audio tone oscillators oper
ate from a choice of one out of
two standard voltages (12 v or 28
Overall frequency accuracy in
the 102 series is ±2 percent; in the
101 series, ± 5 percent. Standard
v).
Buying non-linear potentiometers is usually a big headache for the
engineer interested in quick delivery and accurate performance.
First, you must provide the pot maker with detailed design requirements.
Then wait until the design has gone through the manufacturer's engineering department... almost always a matter of weeks. Even then, the
cut and try engineering approach ordinarily used often yields unsatisfactory results.
To solve this problem, Spectrol recently installed an IBM 610 Computer. Spectrol is the only precision potentiometer manufacturer to adapt
IBM computer techniques within its own facilities to accurately compute
non-linear functions. Using the computer, Spectrol makes complex nonlinear precision potentiometers in record time, both single and multi -turn.
frequencies are available in the
range from 400 cps to 30 kc. Harmonic distortion is in the order of
1
percent total. Circle
Reader Service Card.
323 on
How it works. Design information in the form of X and Y coordinates or mathematical equations describing the particular parameters of
a given non-linear function is entered in the computer. Previously programmed general equations automatically compute from these data points
manufacturing directions in terms of winding equipment settings, cam
angles and radii. Using a high speed electric typewriter as a readout, the
directions are automatically printed on a form which is sent to production. Simultaneously, a punched tape is made to store information for
repeat requirements.
How the user benefits. Because Spectrol's technique takes the
guesswork out of non-linear potentiometer calculation, minimizes time
consuming hand calculations, and provides error free results, the customer receives a superior product sooner. In quoting on particularly
complex requirements, quote time is reduced from weeks to days. In
emergencies, engineering and sales data can be prepared in a few hours.
Your nearby Spectrol representative will be happy to provide more information about Spectrol linear and non-linear precision potentiometers or you
may write direct. A free Spectrol potentiometer specifications book is yours
for the asking. Please address Dept.
1812
Transformers
hermetically sealed
UNITED TRANSFORMER CORP., 150
Varick St., New York 13, N. Y.,
announces high power transistor
transformers in both driver and
voice coil types. The H-280 driver
ELECTRONICS
CORPORATION
1704 S. DEL MAR AVE., SAN GABRIEL, CALIFORNIA
126
CIRCLE 82 READERS SERVICE CARD
type has a primary impedance of
200 ohms center tapped with secondary 400 ohms split. The H-281
is a 5-w output from 48 ohms cen-
December 19, 1958 - ELECTRONICS engineering issue
ter tapped to 16, 8, 4 ohms. The
H-282 is a 10-w output from 20
ohms center tapped to 16, 8, 4
FLEXIBLE PRINTED WIRING
ohms. All are wide frequency range
suited to 30-20,000 cycles service.
Circle 324 on Reader Service Card.
--4211MMI-
Resistors
deposited carbon
WELWYN
INTERNATIONAL
INC.,
3355 Edgecliff Terrace, Cleveland
11, Ohio. Type N deposited carbon
resistors are available in a complete
line of values from 10 ohms to 100
megohms. They feature a tough
durable thermoplastic molded insulation which results in an eco-
. . . sharply reduces weight, bulk and cost of
electronic and electrical assemblies.
Sanders Flexprint (T) Cables and Harnesses offer designers
unlimited opportunities to take advantage of flat, flexible
printed wiring in a wide variety of permanently bonded
insulating plastics from low cost vinyls to fluorocarbons.
nomically priced resistor of im-
Completely flexible ... exactly reproducible.
proved endurance and long-term
stability. Continuous operation at
150 C has caused no damage to
Weighs less than half as much as conventidial wiring .. occupies less
conforms to any housing shape or layout.
than one-third the space
either the insulating material or the
resistor. Circle 325 on Reader Service Card.
in
Designed and produced in straight cables or complex harnesses
single or multiple layers or bonded to rigid materials as a replacement for
.
.
.
.
.
.
.
printed board.
Permanently bonded in insulating plastics to meet environmental and
reliability requirements.
Withstands effects of vibration and flexing .
.
.
allows interconnected
assemblies to move independently.
Speeds up assembly
.
.
.
permits automatic production
.
.
.
eliminates
error.
Easily cut, stripped and connected.
Available in vinyls, polyethylenes, polyesters, silicones, Kel-F, Teflon, or
other insulations . .. in all lengths and current -carrying capacities.
Waveguide Seals
prevent r -f leakage
SANDERS
(T) TRADEMARK -SANDERS ASSOCIATES.
PARKER SEAL CO., a division of
Parker -Hannifin Corp., 10567 W.
Jefferson Blvd., Culver City, Calif.
A complete line of seals for WRseries and X -band waveguides,
WIRING
FIN'EXI31i1NINC.
0446w. 51417DERS FISSOCIFITES, //7 C.
NASHUA, NEW HAMPSHIRE Dayton, Ohio Inglewood, Calif. Washingfon, D.C,
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 83 READERS SERVICE CARD
127
which provide no -leakage fluid seal-
ing, prevent r -f leakage and elimi-
nate burning and/or arcing, has
been developed. Called Electr-OSeals,
they arc made to fit EIA
standard guides and, in addition to
positive sealing, provide savings by
making special machining of flanges
unnecessary. The inside metal mat-
ing edges of the seal are knurled to
assure positive electrical contact.
They are also reusable. Circle 326
on Reader Service Card.
Silicon Transistors
pnp alloyed
He's found the cable
he needs!
SPERRY SEMICONDUCTOR DIVISION,
Sperry Rand Corp., South Norwalk,
Conn., announces four new silicon
pup transistors for 1 to 4 me operation in severe airborne and missile
environments. They incorporate
"micro -control" a new design feature that holds input resistance in
all units to a uniform value to provide greater freedom in circuit design and construction. Selection
problems are reduced by the uniform 35 -ohm value, which is onethird the input resistance heretofore
It's Hickory Brand
intercommunicating
and sound system cable!
realized in megacycle transistors.
Circle 327 on Reader Service Card.
LONG SERVICE LIFE
EXCELLENT MECHANICAL CHARACTERISTICS
EXCELLENT ELECTRICAL PROPERTIES
Use Hickory Brand for balanced intercom systems,
annunciators, telephones, control circuits, electronic computers and multiple speaker and signal
systems.
Quality -engineered Hickory Brand Electronic
Wires and Cables are precision manufactured and
insulated and sheathed in modern plastics.
Gear Heads
and speed reducers
Wile for complete information on
the full line of HICKORY BRAND
Electronic Wires and Cables
SYNCHROSOLVE, INC.,
HICKORY BRAND
Electronic Wires and Cables
Manufactured by
3603
128
SUPERIOR CABLE CORPORATION, Hickory, North Carolina
CIRCLE 84 READERS SERVICE CARD
Decent bet
19
269 Green
St., Brooklyn 22, N. Y., announces
gear heads and speed reducers from
size 8 to 18. All units have a high
torque transmittal capacity to size
ratio; maximum backlash of 30
minutes; will' operate from -55 to
1958
ELECTRONICS engineering issue
+150 C; conform to all applicable
military specifications. Circle 328
on Reader Service Card.
From General Electric
.
.
.
PLAIN TALK ON
TANTALYTIC* CAPACITOR
AVAILABILITY
It's time for plain talk on the facts of tantalu n electrolytic
capacitor availability. There is no "availability" problem
as far as General Electric is concerned.
Here's why:
Voltmeter
No metal shortage-Stocks of capacitor -grade tan-
built-in control
No production capability shortage-Gen f.ral Electric's
Chesterland,
Ohio, has developed a panel mounted electronic voltmeter with
built-in control features. Available
in both a -c and d -c models, it com-
No delivery bottlenecks-General Electric's improved
\ I ETRONI X
talum have doubled within the past year
production facilities have tripled in the past year.
INC.,
bines the locking contact control
action of a meter -relay with the specialized measuring ability of a vtvm.
Typical applications include controlling amplitude limits, automatic
ground -testing of missile parameters, and monitoring signals from
strain gages and load cells. Circle
329 on Reader Service Card.
manufacturing processes and techniques have virtually
eliminated production rescheduling.
Few military directive priorities-Since the supply of
Tantalytic capacitors has met demand, the military
requirements can be met without directive priorities.
This is why we say-now and in the future, General Electric will continue to provide Tantalytic capacitors in the
types and ratings you want-when you want them.
For specific information on Tantalytic cap icitor ratings,
prices, deliveries, contact your nearest Ge ieral Electric
Apparatus Sales Office or write to General Electric Co.,
Section 449-4, Schenectady 5, N. Y.
Registered trade -mark
of General Electric Co.
;Trade -mark of
General Electric Co.
KSR**
to 60 volts,
polar units only-sizes down to
TORS-for mis-
-for transistorized circuit applications-rated
Signal Sources
TANTA-
SOLID TANTALYTIC CAPACITORS
LYTIC CAPACI-
up
radar, airborne electronic
equipment applisiles,
0.125 inches by 0.250 inches.
cations-ratings
up to 3500 mfd-
ten -watt units
125C
LEVINTHAL ELECTRONIC PRODUCTS,
4.
INc., 760 Stanford Industrial Park,
Palo Alto, Calif. Available in a
of four units covering the
band from 1 to 11 kmc, the new
series
three case sizes
1.375, 2, 2.5 inches in height.
TANTALYTIC
CAPACITORS-for
aircraft electronic
systems - ratings
10-180 mfd, 30 to
100 volts. Sizes I/2 to
11/s inches in height.
Also tubular, double -cased units.
model 231T signal sources include
85C TAN-ALYTIC CAPACITORS
-for app ications requiring high
quality b ,t where temperatures
are
less
severe.
a signal generator followed by a low-
level twt amplifier driving a highlevel twt output stage. Internal
modulation facilities are provided
for pulse, square -wave and f -m oper-
ation. In the manufacture of these
GENERAL ELECTRIC
signal sources primary attention was
ELECTRONICS engineering issue - December 19, 1958
CIRCLE 85 READERS SERVICE CARD
129
given to stability, reduction of incidental f -m and a -m, input filtering,
and voltage regulation. Circle 330
on Reader Service Card.
Tape Wound Cores
H -V Relay Assembly
low power consumption
RESITRON
LABORATORIES,
INC.,
2908 Nebraska Ave., Santa Monica,
Calif., has developed a high voltage,
Bobbin Cores
high vacuum relay assembly, type
XAC-22, which can be actuated by
means of an a -c voltage source at
any frequency from 40 to 10,000
cps. The new unit eliminates the
need for an external d -c power sup-
ply as required in many types of
high vacuum relays and is available
in coil voltages from 12 to 120 v.
Circle 331 on Reader Service Card.
Not only G -L but our customers, too, claim consistent'
uniformity with every G -L Tape Wound Core and
Bobbin Core. This consistent uniformity is the result
of: an accuracy of control never before achieved
in each and every step of the manufacturing
process; the use of the highest quality raw materials
and new and exclusive manufacturing technologies.
Prove our claims and the claims of our customers.
Write, wire, call or teletype us about your requirements and for our technical bulletins.
Gd 6126t2lagiff,OLY
2921 ADMIRAL WILSON BOULEVARD
CAMDEN 5, NEW JERSEY
TWX 761 Camden, N.J.
WOodlawn 6-2780
130
CIRCLE 86 READERS SERVICE CARD
Indicator
shows phase sequence
OPAD ELECTRIC CO., 69 Murray
St., New York 7, N. Y. Model VA5
phase sequence indicator provides a
means of instantly determining the
order in which the voltage peaks
occur in a three phase 115 v 400
cps power line. This panel mounting instrument has been designed
December 19, 1958 - ELECTRONICS engineering issue
for built-in applications and is ideal
for integration in test stands, panel
boards and special equipment whose
satisfactory operation is dependent
upon proper phase sequence. Circle
Now! RCA Victor powers its
newest transistor radios with
rechargeable batteries made to
RCA specifications by Gulton
332 on Reader Service Card.
TR Tubes
for
55 C to ± 125 C
BOMAC LABORATORIES, INC., Salem
Road, Beverly, Mass., announces a
new line of extended temperature
range TR tubes. They are
self-
contained and capable of meeting
all standard electrical and mechanical specifications between tempera-
tures of -55 C to -±125 C. All
tubes are interchangeable with pres-
ent JAN TR tubes in current use.
Circle 333 on Reader Service Card.
li(11ARGE:311
BATTER
Vibration Meter
smaller size, longer life
and ... it's rechargeable!
Rigid specifications of RCA Victor called for a tiny
rechargeable battery to power two of its newest transistor
radios. This battery had to be of sufficient reliability to
permit advertising a 5 -year warranty on performance.
After extensive testing, it chose a "VO" sealed nickel
eadium button cell battery which exceeded specifications.
wide applications
WAYNE KERR CORP., 2920 N. 4th
St., Philadelphia 33, Pa. Type
B -731A vibration meter may be
used for vibration tests to meet
JAN -MIL specs in electronic components; to measure vibration in rotating shafts or bearings; on a
production line for determining
sizes and grades of parts for toler-
Makes New Designs Possible
ance; and for testing members of
wherever small size, large capacity, light weight,
long life, no maintenance, complete reliability and easy
recharging are desired.
Most Complete Line Available
"VO" cells are available in capacities of 100, 180, 250, 500
and 1750 mah ; have a nominal 1.2 voltage ; can be
packaged in any combination to meet your voltage specs.
Patented sintered plate construction provides exceptional
cycling characteristics; highest capacity per unit size.
Like more information? Write us for Bulletin No. VO-110.
Powering the RCA Victor sets is only one of many new
applications for these batteries. Imaginative engineers
have already designed them into photoflash power packs,
burglar alarms, missiles, aircraft, prosthetic devices -
airframes, either in wind tunnels or
on actual airframes. The meters
find application where safety considerations make it necessary to have
the indicating instruments remote
from the machinery and the probe.
Circle 334 on Reader Service Card.
Actual size
of 100 mah
A -C Voltmeter
button cell
long life
BALLAN I INE LABORATORIES, Boon-
ton, N. J. Model 300D is a general
purpose, precision, laboratory electronic a -c voltmeter designed to
G
ELECTRONICS engineering issue - December
19, 1958
ALKALINE BATTERY DIVISION
Gulton Industries, Inc.
Metuchen, New Jersey
CIRCLE 87 READERS SERVICE CARD
131
operate for extended periods of
ELECTRONIC ENGINEERS
for expanding
Electronics Division
Positions open at all levels for men with electronic, electromechanical and mechanical experience. Top level positions in
applications and sales for work on:
time with freedom from recalibra
tion and servicing. Essentially it
comprises a high impedance atten
uator followed by a feedback stabilized amplifier which feeds an
average responding rectifier -meter
circuit. Voltage range is 1 my to
1,000 v rms in 6 decade ranges
(0.01, 0.1, 1, 10, 100 and 1,000 v
full scale). Circle 335 on Reader
Service Card.
Electronic components and equipment
Industrial process and quality controls
Nuclear reactor controls and instrumentation
Commercial aircraft simulation
Military flight and weapon system simulation
Space vehicle simulation
and many other assignments for project, senior and junior
engineers. Plant location in Carlstadt, N. J. makes commuting
easy from New York City or northern New Jersey
suburbs.
Send detailed resume including salary requirements to:
T. W. Cozine, Mgr., Executive & Technical Placement, Curtiss-
Wright Corporation, Dept. ED -25, Wood -Ridge, N. J.
=WNW
CORPORATION
Preset Counter
p -c plug-in modules
ELECTRO-PULSE, INC., 11861
Teale
St., Culver City, Calif. Printed circuit plug-in modules serve as sepa-
WOOD -RIDGE, N.J.
rate counting decades and functional block units in the versatile
RIBBONS STRIPS
* PURE TUNGSTEN
* MOLYBDENUM
- of * THORIATED TUNGSTEN
* SPECIAL ALLOYS
and, OTHER METALS
IN
make-up of a new line of counting
equipment. The five decade preset
counter model 7250C typifies this
design approach. It operates to 100
kc as a counter and will recycle
without missing counts at rates to
5 kc. The instrument features high
input sensitivity, pulse and variable
duration or locking relay contact
output, and provision for electronic
or switch gating of the input. Circle
336 on Reader Service Card.
ULTRA THIN SIZES
to
TOLERANCES CLOSER THAN COMMERCIAL STANDARDS
by
OUR SPECIAL ROLLING TECHNIQUE
Note: for highly engineered applications-strips of TUNGSTEN
and some other metals can be supplied
ROLLED DOWN TO .0003 THICKNESS
Finish: Roll Finish-Black or Cleaned
Ribbons may be supplied in Mg. weights if required
For HIGHLY ENGINEERED APPLICATIONS
DEVELOPED AND MANUFACTURED BY
H.0 ROSS CO.'
132
S BEEKMAN ST., N. Y. 3$, N. V.
WOrth 2.2044
TILIPoOkil
COrtlandf 7-0470
CIRCLE 89 READERS SERVICE CARD
Transient Filters
for transistors
E.R.A. ELECTRIC CORP., 67 E.
Centre St., Nutley, N. J., announces a line of transient filters
which are intended for all types of
December 19, 1958 -- ELECTRONICS engineering issue
switching applications. These Slim
Tran transient filters are connected
to the d -c input of the transistor
circuitry and eliminate hash and
noise transmission to the external
circuitry as well as protecting the
switching transistors against line
conducted transients. Stock units
are available for center keying fre-
quencies of 60, 400, 2,000 and
5,000 cps. D -C ratings extend up
to 5 amperes. Circle 337 on Reader
Service Card.
Multi -Channel Link
Test Equipment
The three groups of instruments
featured below are representative
II
II
IN WIMP.
equipments from the wide variety of
Marconi measuring facilities for both
baseband and rf circuits in multi-
IT
channel links. These designs have been
specifically evolved by Marconi
O
1
4. 4
1,.
.41
000
engineers to meet the exacting test
Twin Pentode
sharp cutoff
requirements in this specialized field
of telecommunications.
RADIO CORP. OF AMERICA, Harri-
son, N. J. The 4BU8 is a sharp cutoff twin pentode of the 9 -pin
miniature type intended for use in
age amplifier circuits and sync circuits of ty receivers. It utilizes a
common cathode, a common grid
No. 1, a common grid No. 2, hvo
grids No. 3, and two plates. Each
WHITE NOISE TEST SET
OA 1249
Noise generator and receiver for the
measurement of baseband intermodu-
of the grids No. 3 has a separate
lation and noise by slot technique
covering from 24- to 960- channel
base -pin terminal and may be used
independently as a control elec-
bands (12 kc to 4028 kc).
trode. Circle 338 on Reader Service Card.
-
CZ1
006 0 0 1,
Power Supply
all -transistor
P. R. \ I \ I I oity & Co., INC., DDOuoin, III. A compact, rugged
power supply for converting from
battery to B voltages has been developed for use in military and com-
mercial communications and electronic equipment where highest
reliability is required. Only 31 in.
sq and 1.7 in. high, it has no moving parts, glass tubes or vibrators.
It uses printed circuitry and a transistorized 2,000 -cycle inverter -recti-
fier system. Unit is self-starting at
temperatures down to -55 C; is
U.H.F. TEST SET OA 1248
Signal generator, receiver and noise generator for
general rf tests in the 1700- to 2300 -Mc band.
DERIVATIVE TEST
SET OA 1259
Sweep generator and display
Send for leaflet B130A
MARCONI
INSTRUMENTS
unit for fast and accurate
adjustment of linearity con-
trols on modulator and
demodulator stages. Sweep
width : ± 20 Mc ; center
frequency, 65 to 75 Mc.
111 CEDAR LANE ENGLEWOOD NEW JERSEY
Telephone :
CANADA
CANADIAN MARCONI CO
MARCONI INSTRUMENTS LTD
ELECTRONICS engineering issue - December 19, 1958
LOwell 7-0607
6035
ST. ALBANS
MONTREAL 9
COTE DE LIME
ENGLAND
HERTFORDSHIRE
CIRCLE 90 READERS SERVICE CARD
133
rated for
ambient temperatures
Circle
339 on Reader Service Card.
from -55 C to +71 C.
KURMAN
MINIATURE
POWER RELAY
WE WANT MORE
HIGH LEVEL
ENGINEERS
ON OUR TEAM
at
Ten/Pt-Pacific
in Southern California
FEATURES
Monitor
Clear polystyrene dust -proof enclosure
Up to 3 P D T, 10 amp. contacts
checks relay chatter
AC or DC coil, up to 15,000 ohms
Life -100,000 operations minimum
Dimensions 13/a" sq. x 24" high
Octal or 11 pin plug-in
muTRomcs, INc., 1514 South La
Cienega Blvd., Los Angeles 35,
Calif., has developed a new, thyratron controlled monitor for checking chatter in relays. Model CCM-1
utilizes a continuous red neon lamp
when an indication of contact open-
ing in excess of selected time interval occurs. Ten -durations can be
selected by a single front panel control. Control positions are at 10
psec intervals with a range of 10 to
100 psec. Circle 340 on Reader
Service Card.
STOCKED BY LEADING DISTRIBUTORS
FROM COAST TO COAST
For Immediate Delivery at Factory Prices
KURMAN ELECTRIC CO.
Division of Norbute Corp.
Quality Relays Since 1928
191 NEWEL ST.
BROOKLYN 22, N. Y.
Export:135 Liberty St,N.Y.
Cable: TRILRUSH
00000
SEND FOR CATALOG
CIRCLE 92 READERS SERVICE CARD
SPADE
BOLTS
MISSILE GUIDANCE
AIRBORNE RADAR
TELEMETERING
SONAR
There are important positions available
in these small, independent engineering
Foups at Bendix-Pacific for high level
elgineers from senior grade and up.
Emdix-Pacific is particularly interested
in strong, analytical engineers who have
the calibre and capabilities to advance
in'o systems engineering programs.
Tease write W. C. Walker your
qualifications or fill in the
coupon and moil it today.
W. C. Walker, Engineering Employment Mgr.
Pacific Division, Bendix Aviation Corp.
11608 Sherman Way, North Hollywood, Calif.
I am interested in this engineering field_
I an a graduate engineer with_degree.
I an not a graduate engineer but have
year; experience.
Narr.
Address
City
Zone_State
Snap -Action Switch
new actuator design
CHERRY ELECTRICAL
CORP., 1650 Deerfield
PRODUCTS
Rd., Highland Park, Ill. The S30 -97A snap action switch offers long life and
accuracy for linear cam, rotary and
rotary pin actuation. It is specifically designed to accept clockwise
and counter -clockwise cam actuation with equal precision. Positive
stop protects switch mechanism
from damage due to excessive over travel. The compact cam switch
can be gang mounted to provide
Specialists in designing and manufacturing of all-
purpose fasteners and wire forms. Tooled to produce over 1000 styles in any screw size, material,
finish, quantity, to your specifications.
Serving Industry for Thirty -Five Years
- OTHER PRODUCTS -
S
WIRE STRIPPERS & CUTTERS
.TOOLS
DIES STAMPINGS
Bulletins on complete line on request
WENCO MANUFACTURING CO.
1133 W. Hubbard St.. Chicago 22, III., U.S. A.
CIRCLE 93 READERS SERVICE CARD
134
December 19, 1958- ELECTRONICS engineering issue
electrical control for multiple circuit variations. Operating force
can be varied from 2 to 7 oz. Circle
341 on Reader Service Card.
SINCE 7901
ITV System
with light control
KINTEL, a Division of Cohu Electronics, Inc., 5725 Kearny Villa
Road, San Diego 12, Calif. The
1987 television system features an
automatic, built-in light control
capable of compensating for light -
Platinum -wound temperature sensing elements require
level variations of up to 1,000:1.
PLATINUM WIRE
In addition, a white clipper circuit
minimizes the effect of extremely
bright objects in the viewing field.
To gain maximum reliability, all
components within the system are
operated at less than 75 percent of
their nominal operating level.
Circle 342 on Reader Service Card.
of highest purity, homogeneity, and reproducibility
SIGMUND COHN CORP. 121 So. Columbus Ave. Mt. Vrnon, N. Y.
CIRCLE 94 READERS SERVICE CARD
Manufacturers of:
PHASE
METERS
A PHASE
NULL
Imbedded Circuitry
SENSITIVE
NULL METER
high reliability
AND HARMONIC
BECK'S, INC., 300 E. Fifth St., St.
DETECTORS
WHEREIN NOISE
IMPEDANCE
COMPARATORS
VOLTAGES ARE
1, Minn. Imbedded in the
EFFECTIVELY
base material and protected by an
ELIMINATED
insulating cover, "imbedded circuitry" offers reliability beyond any
existing industrial or military specification. Using a conductor of three
Allows separate balance of in phase or quadrature in null cir-
Paul
to six times the thickness of ordi-
MODEL 100A
cuits.
PRICE
POWER
525900
OSCILLATORS
F.O.B.
Eliminates the necessity for fil-
NEW YORK
ters.
FREQUENCY
nary surface -type circuitry, and because of the slight tapered shape of
High sensitivity.
the etched conductor, "imbedded
Direction of null clearly shown on zero centered
circuitry" is actually locked -in -place
and will not lift, peel, or separate
from the base material under the
. most severe conditions. It has
greatly improved surface resistivity,
dielectric strength, and physical
rigidity. Circle 343 on Reader Service Card.
STANDARDS
meter.
Synchro zeroing without recourse to coarse and
fine switching.
AUTOMATIC
HI -POT
For further information contact your nearest
representative or write for brochure
.ts..)EST
CO
,INDUSTRIAL TEST EQUIPMENT CO.
55 E.
ELECTRONICS engineering issue - December 19, 1958
I
I th ST.
NEW YORK 3
GR. 3-4684
CIRCLE 95 READERS SERVICE CARD
Other Electronic
Test Equipment
135
SEVERAL METERS IN ONE
Multi -Range, Multi -Purpose
AC -DC Ammeter/Voltmeter
Literature of
MATERIALS
Cable
Shielding.
Magnetic
Shield Division, Perfection Mica
Several AC and DC ranges can be combined in
one instrument. All ranges have uniform scales.
Co., 1322 No. Elston Ave., Chicago
AC
0-50 MA, 0-1 to 0-10 Amperes.
0-50 to 0-800 Volts (20 ohms/volt)
and describes new bidirectional
Netic Co-Netic foil strips for mag-
DC
0-100 to 0-750 Millivolts
ing communication cables, eliminating crosstalk, and permitting
clearer sound transmission. Circle.
344 on Reader Service Card.
22, Ill. Data sheet 140 illustrates
netically and electrostatically shield-
0-1 to 0-800 Volts (Approx. 24 ohms/volt)
One popular combination includes
these ranges:
0-50 MA, 0-5/10 A AC
0-150/300/600 V AC
50-800 cycles
COMPONENTS
0-150/300/600 V DC
Miniature Delay Lines. Columbia Technical Corp., 61-02 31st
Ask for Catalog Section 48
Product Representatives in Most Principal Cities
The ESTERLINE-ANGUS Company, Inc.
Pioneers in the Manufacture of Graphic Instruments
DEPT.
E,
P. 0. BOX 596, INDIANAPOLIS 6, INDIANA
Ave., Woodside 77, N. Y. Bulletin
78 describes the new MiniLinescircuit elements that are resin -encapsulated and combine, in a small
volume,
outstanding electrical
characteristics with extreme me-
chanical strength. Circle 345 on
Reader Service Card.
CIRCLE 96 READERS SERVICE CARD
High -Pressure Seals. Automatic
& Precision Mfg. Co., 252 Haw-
TELREX LABORATORIES
NEW!
Telrex is equipped
to design and supply
to our specifications
or yours, Broadband or single
frequency, fixed or
rotary arrays for
communications,
Broad -Band Conical Dipole
Corner Reflector Assembly
210 TO 620 MC. WITH 2 ADJUSTMENTS
Model
XCR210-620
FM, TV, scatter -
propagation, etc.
Gain: 8 to 11 db.
Consultants and
suppliers to
communication
firms, universities,
propagation
laboratories and the
F/B ratio: 18 db with no appreciable
side lobes.
V/S/W/R: Less than 2 to 1 over
the 210 mc. to 620 mc. range.
50 ohm transmission line feed
through, a special broad -band
"Balun" (supplied).
Armed Forces.
Mounting:
Horizontal or vertical
onto a 21/2" dia. mast. Can be
fitted for other diameter masting at extra cost.
All
dural
construction
with
single -unit high
pressure
seals for commercial and military
subminiature toggle and push-button switches. Circle 346 on Reader
Service Card.
Transistor Circuitry Case. Vector
Electronic Co., 1100 Flower St.,
Glendale 1, Calif. Bulletin 54A
the Frame-Loc case, a
slender flush type with snap -out
side panels intended particularly
for transistor circuitry and p -c
hoards in small pluggable units.
Circle 347 on Reader Service Card.
covers
Servo Components. Precision
Mechanisms Corp., 577 Newbridge
Six -
page bulletin No. 102-58 describes
a complete line of predesigned
Descriptive
on request
stainless steel fittings.
COMMUNICATION & TV
ANTENNAS SINCE 1921
TELREX ALSO DESIGNS AND MANUFACTURES
COMMERCIAL SERVICE "BEAMED -POWER" ARRAYS
ASBURY PARK 25
NEW JERSEY, U.S.A.
Tel. PRospect 5-7252
L_
136
scribes
Ave., East Meadow, N. Y.
literature
Weight: 18 lbs. (approx.).
thorne Ave., Yonkers, N. Y. Bulletin HEX -10 illustrates and de-
CIRCLE 97 READERS SERVICE CARD
mechanisms and components for
the servo and instrument fields.
Circle 348 on Reader Service Card.
Tantalum Capacitors. Fansteel
Metallurgical Corp., North Chicago, Ill. Bulletin 6.100-3 covers
December 19, 1958 - ELECTRONICS engineering issue
the Week
NEW BENDIX
the PP type general purpose tantalum capacitors. It contains application information, specifications,
ordering references.
Circle 349 on Reader Service Card.
ratings and
SILICON RECTIFIERS
feature rugged performance
EQUIPMENT
D -C
Power Supply.
General
Electric Co., Schenectady 5, N. Y.
Bulletin GEC -1505 covers a line of
voltage -stabilized d -c power supply
units. Photos, lists of benefits, typi-
cal data table, schematic diagram,
and current -limiting effect curve
illustrate key features. Circle 350
on Reader Service Card.
Multipurpose
Electrometer.
DIFFUSED RECTIFIER SERIES
Keithlev Instruments, Inc., 12415
Euclid Ave., Cleveland 6, Ohio.
Volume 6 No. 1 of Engineering
Notes
illustrates
and
describes
model 610 electrometer which can
be used as a voltmeter, ammeter,
ohmmeter and d -c preamplifier.
Circle 351 on Reader Service Card.
Peak
Maximum
V
Vac
135°C
35
70
140
280
420
30 Adc
30 Adc
30 Adc
30 Adc
30 Adc
MS
Type
Voltage
No.
50
100
200
400
D -C
Ave., South Nonvalk, Conn., announces a product data sheet on
the Q-Nobatrons, a line of transis-
Output
Current
1N1434
1N1435
1N1436
1N1437
1N1438
0.75 AMPERE
Type
Max.
Rectified
Output
No.
Current
1N536
1N537
1N538
1N540
1N547
250 mAdc
250 mAdc
250 mAdc
250 mAdc
250 mAdc
Max.
Max.
Rectified
Recurrent
Inverse
Voltage
600
Supplies.
Sorensen & Co., Inc., Richards
Transistorized
5 AMPERE
30 AMPERE
Type
No.
1N1612
1N1613
1N1614
1N1615
1N1616
Rectified
Output
Current
I35°C
5 Adc
5 Adc
5 Adc
5 Adc
5 Adc
150°C
Maximum reverse current at rated peak
inverse voltage
5.0 mAdc at 150°C
1.0 mAdc at 150°C
500 µAde at 150°C
Forward voltage drop
at 25°C
Peak recurrent current
1.2 Vdc at 60 Adc
1.5 Vdc at 10 Adc
15 amperes
1.1 Vdc at 0.5 Adc
90 amperes
torized low -voltage high -current d -c
supplies, with outputs of 6, 12 or
28 v, at 15 or 30 w. Circle 352 on
Reader Service Card.
Precision Rally Computer. Kear-
fott Co., Inc., 1500 Main Ave.,
Clifton, N. J. A recent bulletin
illustrates and describes a precision
rally computer which features continuous computation and display of
time, speed and distance. Circle
353 on Reader Service Card.
FACILITIES
Technical Studies. Sloan Research Industries, Inc., 526 N. Mil pas St., Santa Barbara, Calif. An 8 -
page illustrated brochure provides
information on the application of
its electron microscope and x-ray
diffraction laboratories to various
electronic and industrial problems.
Circle 354 on Reader Service Card.
Now Bendix offers a broad line of diffused type silicon power
rectifiers that can deliver up to 30 amperes of rectified current.
Featuring hermetic seal and welded construction, these
rugged units can be used where thermionic devices will fail.
Actual usage proves them outstanding for applications where
high ambient temperatures, small size and high efficiency are
of utmost importance. The packages conform with the
latest standardization. The rectifiers are ideal for magnetic
amplifier and DC blocking circuits as well as applications
to power rectification.
Write, wire or phone for complete details, competitive
prices or immediate shipment. Our Application Engineering
Department is available for your circuitry problems.
SEMICONDUCTOR PRODUCTS, BENDIX AVIATION CORPORATION,
LONG BRANCH, NEW JERSEY.
West Coast Sales: 117 E. Providencia Ave., Burbank, California.
Export Sales: Bendix International Division, 205 E. 42nd Street, New York 17, N. Y.
Canadian Distributor: Computing Devices of Canada, Ltd., P. 0. Box 508, Ottawa 4, Ontario"
-IINIPentra& Division
ELECTRONICS engineering issue - December 19, 1958
lignoei/t/
AVIATION CORPOR Al
CIRCLE 98 READERS SERVICE CARD
137
PLANTS and PEOPLE
increased government and contract
business, and to facilitate contract
liaison in the research, development
and production of electronics and
electromechanical equipment for
the defense industries of the armed
forces.
Prior to joining Webcor, Scott
was assistant head of the Electronic
Countermeasures Br?nch, Avionic
Division, Bureau of Aeronautics,
Navy Department.
West Receives
New Assignment
Barden Unveils New Facility
THE Barden Corp. recently announced official opening in Danbury, Conn., of a modern and fully
equipped plant for the manufacture of instrument precision ball
bearings.
The $2,500,000 facility stands on
a 21 -acre hilltop site. The alu-
minum and concrete building contains 125,000 sq ft of floor space.
voted exclusively to the production
of bearings, particularly for the
increasingly complex needs of the
aircraft and instrument industries.
New plant represents the latest
step in a continuing effort to raise
standards of performance and precision to meet today's technological
requirements, firm says.
In addition to the manufacturing
roNETics, Downey, Calif., has
appointed W. J. West to the post
of project engineer for reliability
on weapon system 133A (Minuteman).
Prior to assuming his new position, West had served as the depart-
ment's staff specialist in systems
analysis. He first joined Autonetics in 1956. Before that, he
had 12 years of broad experience
in the electronics field, with several
years of specialization in radar and
radiation.
From 1948 to 1956 he served as
responsible engineer on various
projects with the California Re-
area, it has a cafeteria, dispensary
search Co.
and clinic, and other employee
services.
Its one -floor manufacturing area
allows production to flow smoothly
Science Industry
Center Set Up
around a core of service activities
central to all departments. Ma-
chine operations are in open, uncluttered expanses, with such essential services as power, coolant
and hydraulic lines supplied from
A PLANNED SCIENCE INDUSTRY Cen-
low stanchions instead of overhead
tions at the nation's capital. De-
pipes.
signed expressly for such industries,
Because of the extremely close
tolerances to which the precision
ball bearings arc made, optimum
and to meet the growing demand
for efficient plant sites as well as
cleanliness is a prime requisite,
situated only minutes away from
particularly in final inspection, assembly, testing and inner packaging. These operations are sealed
off from the noncritical departments
and are subject to the most thorough precautions to prevent entry
of dirt or dust.
The Barden Corp. reports it was
founded in 1942 "to produce ball
bearings to a higher degree of pre-
cision than had ever before been
uniformly attained." It is still de138
ter has been established to meet
the needs of science -oriented indus-
tries seeking suitable accommoda-
prestige
Appoint Scott
V -P at Webcor
CHICAGO'S
\ \ 7CbC01",
Inc.,
has
named Hoyle U. Scott vice president for its Electronics Division.
He will be headquartered in the
Ring
Building
in
Washington,
location,
the center
is
key government agencies, in nearby
Montgomery Gout -Ay, adjoining
Washington's northwest section,
and is known as Washington -Rockville Industrial Park.
Power Sources
Hires Cameron
D. C.
This is a new position created
NEW chief engineer at Power
for better handling of Webcor's
Sources, Inc., Burlington, Mass., is
December 19, 7958 - ELECTRONICS engineering issue
How Magnet Specialists Can Help Improve
Your Product, Cut Design and Production Costs
A close look at your product in the light of modern magnetic technology may reveal ways to improve designs and manufacturing
methods with resulting lower costs. Here's a good way to begin.
STUDY THE MAGNETS
YOU'RE USING
If your product now employs a
permanent magnet, review these
considerations:
1. Is the magnet right for the job?
2. Would a larger or smaller magnet
improve the design, permit larger
physical tolerances, etc?
Example: A manufacturer was using
Alnico V magnets in a high -quality
intercom unit. Magnetic experts
studied the design and found that
83% of the energy of the magnet
was nullified in actual operation of
the unit. Equivalent results could
be obtained with a smaller Alnico
magnet or lower cost magnetic
materials.
3. Are all close tolerances in the
design essential to the performance of the product?
Example: A radar manufacturer to meet required tolerances-specified an I.D. grind on a permanent
magnet used in conjunction with a
magnetron assembly. Cost of the
magnet was $2.26. Study showed
that the I.D. grind was not necessary, and the new magnet price is
81.70 each.
4. Would a different magnet material perform more efficiently in
this application?
5. Can the design of the magnet itself be modified for greater efficiency, lower cost?
Example: A manufacturer of small
electric motors used two Alnico V
magnets and two pole pieces in a
motor assembly. These four elements have been eliminated in a
design that uses one Indox ring
magnet -a multiple saving in material, parts and labor.
PARTS CONVEYOR
Magnets eliminate clamps and hooks,
simplify loading and removal of parts.
Magnetics is a highly specialized
CHIP RETRIEVER
Collects chips and other iron par-
ticles from coolant, lubricant, etc.
PIPE ROLL
Handles ferrous pipe and tubing at
high speed without slippage.
SHEET FANNER
"Fans" sheet steel in stacks to simplify pickup and handling.
FLOOR SWEEPER
Picks up iron scrap, tools, etc. from
plant floors, drives and parking lots.
TOOL HOLDER
Keeps tools handy
speeds work.
RESEARCH AND
DEVELOPMENT
and orderly,
SEPARATORS
Magnetic pulleys, plates or drums
remove tramp iron from non-ferrous
materials in every industry.
science. Too often, competent engineers who are without the required
testing facilities and experience will
spend months studying a magnetic
circuit for a proposed product, finalizing a design that could have been
completed in a few weeks with the
help of specialists.
Nobody knows magnetics like
Indiana Steel Products ...and Indiana makes all kinds of magnet
materials, can recommend exactly
the right magnet for your specific
application. You are invited to consult with our engineers and scientists
on any problem involving permanent magnets. Write today for new
free catalog, "Cast and Sintered
Alnico Permanent Magnets." Ask
for Catalog No.19-Al2.
TOOLING WITH MAGNETS
Literally thousands of manufactur-
ers have cut factory costs with
THE INDIANA STEEL PRODUCTS COMPANY
permanent magnets in tooling, proc-
VALPARAISO, INDIANA
essing, material handling and production devices. A partial list of the
most common applications will in-
dicate the wide range of jobs a
DIANA
RMANENT
WORLD'S LARGEST MANUFACTURER
OF PERMANENT MAGNETS
AGNETS
permanent magnet can do effectively
and at low cost.
ELECTRONICS engineering issue - December 19, 1958
IN CANADA: The Indiana Steel Products Compcny of Canada Limited, Kitchener, Ontario
CIRCLE 147 READERS SERVICE CARD
139
CHECKS OUT TRANSISTOR
CIRCUIT DESIGNS-in minutes!
N.E.L. 525
TRANSISTOR CIRCUIT SYNTHESIZER
No soldering
required!
Fred M. Cameron, Jr.
He was formerly with Ferranti
Electric, Inc., White Industries,
Inc., and Raytheon Mfg. Co.,
where he was chief engineer of the
New Hampshire plant prior to joining Power Sources.
In his new capacity, Cameron
will be responsible for the planning, design and development of
power supplies, d -c inverters, and
other equipment using transistorized and magnetic circuitry.
I Pre-tests, evaluates
transistor circuits
/ Saves time, money,
material
,/ No wiring
/ No soldering
,/ No costly "breadboard"
techniques
For complete information, 1, rite
NATIONAL ELECTRONICS LABORATORIES, INC.
1713 KALORAMA ROAD, N.W., WASHINGTON, D. C.
a
subsidiary
of
77g4:42Aoe
,/ Four transistor stages
,/ Flexible - allows Common Base, Common
Emitter, Common Collector circuit configurations
CHEMICAL CORPORATION
®Registered Trademark of Thiokol Chemical Corp. for its liquid polymers, synthetic rubbers,
rocket propellants, plasticizers, and other chemical products.
CIRCLE 99 READERS SERVICE CARD
TRANSISTOR TRANSFORMERS
AUDIO, RECTIFIER & SERVO TYPES
Audio types from 5mw to 20w.
Rectifier types from 10 v. to
80 v. Servo types with less
than 1% dist. Open frame,
cased or encapsulated. Commercial or MIL -T-27 grade de-
signed by specialists in the
miniature transformer field.
FERROTRAN ELECTRONICS CO., INC.
693 Broadway, New York, 12, N. Y.
ALgonquin 4-5810
ECS Appoints
Engineering Mgr.
was recently appointed manager of engineering for
Electronic Control Systems, the
Los Angeles facility of the Electronics Division of Stromberg-CarlJACK ROSENBERG
son, Rochester, N. Y.
Rosenberg, who joined ECS in
1954, was the project engineer in
charge of the development of the
Digimatic line of controls for machine tools and other precision
CIRCLE 200 READERS SERVICE CARD
equipment. From 1951 to 1954
he was employed by the Electronics
Laboratory of General Electric Co.
Electrical Coil Windings
1
For 40 years . . . specializing in all types of coils to
customers' specifications. Design or engineering assistance available on request.
COTO-COIL CO., INC
SINCE 1917
65 Pavilion Avenue
Providence 5, Rhode Island
on digital telemetry and control
projects.
S
Maxson Hires
Charles H. Lilly
NEWLY
appointed liaison engineer
for the Old Forge, Pennsylvania
Manufacturing Division of The
W. L. Maxson Corp. is Charles H.
Lilly. He will coordinate product
140
CIRCLE 201 READERS SERVICE CARD
December 19, 7958 - ELECTRONICS engineering issue
design between the Old Forge Di-
vision and the Research and Development and Instruments Division in New York City.
Prior to joining Maxson, which
specializes in missile systems and
components and other military electronic equipment, Lilly worked for
the Philco Corp. since 1951. His
last position was as an engineering
group supervisor in the Philadelphia Industrial Group.
Save SPACE and WEIGHT with the
Ray Destabelle
Moves to TIC
A. W. HAYDON COMPANY'S
Unique Line cf RELIABLE SUB -MINIATURE
ELAPSED ME INDICATORS
TECHNOLOGY INSTRUMENT CORP.
TINY!
of California has appointed Ray
Destabelle to the post of chief
engineer, Transducer Division, at
11/4- Diameter - 219/32- long
Weight only 4 ounces
Compact flange or MS -28053 Mounting
TOUGH!
54 C. to 85' C.
Temperat ire:
500 CPS, lOg
Vibration:
the TIC Santa Monica plant.
Prior to joining TIC, Destabelle
50g
Shock:
served with Servomechanisms, Inc.,
Hermetically Sealed Housings!
Dial Face or Digital Readout!
400 Cycle Models Now in Production!
Custom Designed to Meet Military
Specifications!
Write for Bulletin AWH-ET-602.
niqWMAYDON
Task Corp. and North American
edm#24
Aviation, Inc.
235 NORTH ELM STREET.
WATERSURY20,CONNECTICUT
Deign and Manufacture of
Elettro-Mftlianical Tinting Devices
News of Reps
CIRCLE 202 READERS SERVICE CARD
Cozzens and Cudahy, Inc., of Evanston, Ill., is appointed sales rep
ATTRACT AND HOLD TECHNICAL PERSONNEL
for Weinschel Engineering, Kensington, Md. Territory covered will
II
be Wisconsin, Minnesota, Iowa,
northern Illinois, and western In-
JACKSONVILLE
diana.
STRATEGIC
LOCATION FOR
Moulthrop and Hunter of San Francisco
will now handle both the
GROWTH INDUSTRIES
Chicago and Stancor lines of stock
transformers for Chicago Standard
Transformer Corp. in the northern
California area.
DAYTONA
ORLANDO
OWN
MISSILE
TEST
CENTER
Lenz Electric Mfg. Co., Chicago,
Ill., has named Eichorn and Melchior, Inc., of San Francisco, as
sales reps for northern California
DAYTONA BEACH
FLORIDA
Metropolitan Area
Industrial Sites
and Nevada.
The Genalex core line of Wallace
E. Connolly & Co., Menlo Park,
Calif., is now being sold in the New
England states by John V. Muddle
of Ashland, Mass.
Columbine Sales and Engineering
Co. of Denver is named to repre-
sent the Electronics Division of
Iron Fireman Mfg. Co., Portland,
Ore., in the Rocky Mountain area.
Daytona Beach, the east -to -
west terminal on the north -
to -south route of the proj'DAYTONA
BEACH
METROPOLITAN
AREA
ORMOND BEACH
HOLLY HILL
PORT ORANGE
SOUTH DAYTONA
ELECTRONICS engineering issue - December 19,
19-58
ected Federal Limited Access
Freeway System, gives indus-
try a plus for the future.
Write for new101page
Industrial Brochure
R. H. MILES, MGR.
INDUSTRIAL DEPARTMENT
CHAMBER OF COMMERCE
DAYTONA BEACH, FLORIDA
CIRCLE 203 READERS SERVICE CARD
141
NEW BOOKS
ertial and homing systems are given.
STROMBERG-CARLSON
Guided Missiles
Type "A" Relays
l3
LT. GEN. CHARLES T.
A1YERS, USAF.
McGraw-Hill Book Company, New
York, 1958, 575 p, $8.00.
with
Plug-in mountings
HERE is a readable and well -illus-
trated elementary manual on design, theory and some operational
aspects of guided -missile systems.
It is a direct reproduction of an
Air Force training manual, written
for the orientation of personnel
with relatively narrow background
and experience in guided -missile
technology.
Beginning
with
fundamental
physical principles, the text indicates the logical development of
the guided missile. It is not intended as a design manual and,
although there is some quantitative
discussion of the missile system,
the major emphasis is to impart
qualitative understanding of the
For fast, easy removal and replacement you can get Stromberg-Carlson
Type "A" Relays with plug-in
mountings.
The Stromberg-Carlson Plug (illustrated above) automatically locks
the relay in place and guarantees a
low -resistance connection between
plug and socket. Its 36 terminals
provide enough connections for prac-
tically all relay applications. Coils
and contacts are wired to terminals
as your needs dictate. Contacts can
be furnished in silver, palladium,
gold alloy or palladium -silver alloy.
Spring combinations possible with
this assembly are 17 Form A or Form
B; 10 Form C or Form D.
Also available in an "A" Relay is
a plug used with commercial radio
component parts.
Contents-Specifically, the text
is introduced with a history of the
guided missile and some of the
relationships existing between the
Air Force research and development organization and the missile
in its various phases of design,
test and production. This is fol-
lowed with basic material on aerodynamics and propulsion, which is
informative and well done. A
section on the physics peculiar to
guided missile systems is, essentially, a rudimentary survey of elementary science. In some areas, and
the subsection on
transistors, the information is not
specifically in
Particularly interesting are some
ideas on procedures used for check-
out of control systems. Of note,
also, are the treatments of missile
instrumentation and test and
guided missile
tactics, including
good data on warhead and fuse
considerations.
In summary, this is a book for
technicians involved in or associated with guided -missile systems
and for the more technically trained
practicing engineer who desires a
knowledge of missile fields relating
to his own area of specialty. The
treatment of aerodynamics and propulsion are well suited to the possi-
ble needs of the electronics engineer; however, the latter is not
liable to derive new information
in his own major area of specializa-
tion. With this understanding of
the textbook's aims, it is then seen
to represent an enjoyable, carefully
written and accurate, though eletreatment of modern
guided -missile technology.-A. E.
mentary,
NASHMAN,
Executive
Engineer,
ITT Laboratories, Nutley, New
Jersey.
THUMBNAIL REVIEWS
Operational Mathematics. By R. V.
Churchill, McGraw-Hill Book Co.,
Inc., New York, 1958, 337 p, $7.00.
This second edition is concerned
primarily with the theory and applications to Laplace and other integral transforms. It represents an
extensive revision of the author's
"Modern Operational Niathematics
in Engineering."
Electronic Instrumentation for the Behavioral Sciences. By C. C. Brown
type sockets. It can mount relays
with 8, 9, 12 or 20
relevant background to the material
R. T. Saucer, Charles C.
Thomas, Publisher, Springfield, Ill.,
connections.
For technical de-
following in the main parts of the
book.
1958,
tails and ordering
information, send
RELAYS,
for Bulletin T -
5000R, available on
request. Write to:
54,-F
947,1,t,
STROMBERG-CARLSON
A DIVISION OF GENERAL DYNAMICS CORPORATION
TELECOMMUNICATION INDUSTRIAL SALES
114 Carlson Road, Rochester 3, N. Y.
Electronic and communication products
for home, industry and defense
Components-Good sections on
missile components, including gyros, synchros and related transducers,
computational
elements,
timers and hydraulic servos, hold
much useful information. Rudimentary data on radio, light and
inertial sensors is contained and
digital and analog computers are
also treated.
This material is followed by
assembly of the component building blocks into subsystems and
finally completed systems. Illustrative examples of command, in -
and
159 p, $5.50. A simplified
presentation of basic electronic theory necessary for instrumentation
problems, this book is intended for
nonengineers in
experimental re-
search. One chapter, Stimulus Generators and Input Transducers, may
be of interest to engineers interested
in medical electronics.
Handbook of Electronic Circuits. By
RCA Service Co., Howard W. Sams
& Co., Inc., Indianapolis, Ind., 1958,
66 p, $1.00. Circuit diagrams and
descriptions of some of the most
commonly used basic electronic circuits employed in military and comequipment. Component
mercial
failure analysis
included.
for each circuit
is
CIRCLE 148 READERS SERVICE CARD
142
December 19, 1958 - ELECTRONICS engineering issue
I
Recent Raytheon achievement in Radar
MOVING -TARGET INDICATOR
is just one of the, many dramatic achievements Raytheon
engineers are -making in radar
every day. This development
applies the electronic memory
of a recording storage tube to
a standard plan -position indicator (PPI).
ADVANTAGES: (1) trail of the
moving target is displayed on
the scope to permit immediate
analysis of target course with-
out the necessity of manual
plotting. (2) Scope brightness
is uniform and at a sufficient
level for lighted area viewing!
HOW IT WORKS: both live and
stored data are shown on a two -
layer, two-color phosphor CRT
on a time-shared basis-the
stored pattern being read out
onto the scope in the time between successive PPI sweeps.
A yellow dot indicates the tar-
get and a blue -white trail depicts the history of its motion.
To the man who is looking for
FRONTIER PROJECTS IN ELECTRONICS:
As an engineer or scientist who wants to accom-
plish more in 1958, you naturally want tp be
where new things are happening.
Whatever your specialized background and
interests, chances are you'll find a current
Raytheon project that offers exceptional oppor-
tunity for you to put your scientific skill and
creative imagination to work.
Raytheon's constant expansion during 1958
covers advanced activities in:
COMMUNICATIONS (Commercial and Military)
-
scatter, microwave relay, multiplex, mobile
transistorized equipment.
COUNTERMEASURES-radar
countermeasures
equipment, advanced study projects.
systems)-search, fire control, bombing, navigation, and guidance, airtraffic control, weather and marine, military and
commercial.
RADAR (Pulse and CW
MARINE EQUIPMENT-submarine,
ship and air-
borne sonar, depth sounders, direction fmders,
radars.
GUIDED MISSILES-prime contracts:
Navy Sparrow III (air-to-air)
Army Hawk (ground -to -air)
MICROWAVE TUBES -"Amplitrons," magnetrons,
klystrons, traveling wave tubes, storage tubes,
backward wave devices.
SEMICONDUCTORS-devices,
materials and tech
piques; silicon and germanium.
For interview at your convenience, please write to:
E. H. Herlin, Professional Personnel Section
P.O. Box 237, Brighton Station, Boston 35, Mass.
Excellence in Electronics
ELECTRONICS engineering issue - December 19, 1958
RAYTHEON MANUFACTURING COMPANY
143
COMMENT
NEMS CLARKE
Broadband Generator
Type TRC-1
I read with some concern the
article in the Nov. 7 ELECTRONICS
on our model 900 sweep generator
TV Color
("Broadband Generator Has Wide
and Narrow Sweeps," p 88, Nov.
7). I was concerned because I was
given full credit for the authorship
of the article, and this is a considerable distortion of the facts.
The article was in fact coau-
Rebroadcast
Receiver
The Type TRC-1 Color Rebroadcast Receiver has been designed specifically to
meet the requirements for a high -quality receiver for use in direct pickup and
rebroadcast of black and white and color signals.
thored by our chief test -equipment
engineer, Ken Simons. But frankly,
SPECIFICATIONS
VIDEO CHANNEL
Output terminal
75 ohms, coaxial
Level
Adjustable up to approximately I volt,
peak to peak
Polarity.
Sync negative
Frequency response
To 4.2 me
SOUND CHANNEL
System
Separate IF (not infercarrier)
Output level.
Adjustable from 0 to 18 dbm
Output impedance
600 ohms or ISO ohms,
balanced or unbalanced
Frequency response
30 to 15,000 cycles with
standard 75-u sec de -emphasis
Distortion
Noise level
if the credit is to be shared, the
Less than 1%
lion's share belongs to Mr. Simons.
50 db below -10 dbm
SYNC CHANNEL
Output connection
75 ohms, coaxial
Output level
3 volts, peak to peak
Polarity
Negative
Ile not only wrote the major portion of the article, but is the one
man primarily responsible for the
creation of the model 900.
MISCELLANEOUS
Gain control
Manual or keyed automatic
RF input connection
75 ohms, coaxial
Crystal controlled R.F. Employed for maximum
and unattended operation
Power supply
Self-contained
Power requirements 117 volts, 60 cycles, 150 watts
CAYWOOD C. COOLEY, JR.
JERROLD ELECTRONICS CORP.
PHILADELPHIA
LARKS COMPANY
/NT E M
When the article was printed,
Mr. Cooley's name appeared as
sole author. To make matters
worse, my picture was printed in
the lead illustration with the caption "Technician lines up . . .
SION OF VITRO CORPORATION OF AMERICA
919 JESUP.SLAIR DRI
SILVER SPRING. MARYLAND
JUNIPER 5.1000
CIRCLE 204 READERS SERVICE CARD
equipment."
I resent being labeled as a technician. I deeply resent being
robbed of whatever prestige may be
New
MODEL 530 FIXED COAXIAL
ATTENIJATOR
in
Stainless Steel
and Really
Rugged !
attached to authorship of the article, and to responsibility for the
design of the unit
As the publisher of a national
Don't
even
MENTION
.
TREMENDOUS
IMPACT! -
word!
work makes your magazine possible.
What is printed in, or omitted
from, your pages can have a profound effect on the reputation of
an individual, and an engineer's
SHOCK
MOUNTS!
reputation
Now Used in
STAYS OPERATIVE OVER
EXTENDED TEMPERATURE
concerned. Each year thousands
RANGE OF MIL EQUIPMENT
of Americans lose their lives
SMALL FREQUENCY SENSITIVITY
WIDEBAND 1,000 to 12,400 MC
write for catalog for detailed fame
1Weinschel Engineering
KENSINGTON, MARYLAND
one of his greatest
K. A. SINIONS
"Frightened to death- is no figure of speech where cancer is
EXCELLENT STABILITY
UNDER PULSE POWER
is
assets.
Major Military
Equipment!
.
magazine with a wide circulation,
you have a tremendous responsibility towards the engineers whose
that
<- NEEDS NO
TAKES
.
JERROLD ELECTRONICS CORP.
We can certainly understand
and deeply sympathize with author
Simons' reaction to the double
affront. We also recognize the
needlessly because they were too
terrified about cancer to even
learn facts which could have
saved their lives! Learn how
to protect yourself and your
responsibility which we have toward the engineers who read our
magazine, and toward those who
contribute to its features. It is the
bitter truth, however, that errors
do sometimes creep into all things
family by writing to "Cancer,"
c/o your local post office.
American Cancer Society
®
tinder mortal control.
CIRCLE 205 READERS SERVICE CARD
144
December 19, 1958 - ELECTRONICS engineering issue
New electronics
frontiers
Advanced systems research, to meet the demands of complex modern weapons systems, is among the many new
activities that attract engineers and scientists to IBM.
This research encompasses over-all planning of methods
for the detection of flying objects
feasibility studies
of guidance, detection and defensive systems ... specification of radically new equipment for terrestrial and stellar
navigational problems. Academic studies of logistics, operations research, information and communications theory
are also part of this new research at our Kingston facility.
.
.
.
A CAREER WITH IBM. A recognized leader in the electronic
systems field, we present unusual opportunities for technical achievement and professional advancement. With a
secure position in commercial sales, IBM offers stability,
liberal company benefits, company -paid relocation expenses and advancement on merit. Salaries are commensurate with ability and experience.
is a pleasant Hudson River valley community. It combines country living with easy proximity
to New York and other metropolitan areas.
KINGSTON, N. Y.,
ASSIGNMENTS
open in these development areas:
Cryogenics
Digital Computer Design and Programming
Guidance and Detection Systems Analysis
Low -Temperature Physics
Magnetic Devices
Optical Systems for Data Presentation
Solid -State Physics
Write, outlining qualifications
and experience, to:
Mr. D. H. Hammers, Dept. 554Z
IBM Corporation
Military Products Division
Kingston, N. Y.
QUALIFICATIONS: B.S., M.S.,
or Ph.D. Degrees in Electrical
Engineering, Physics, Mathemat-
ics or related disciplines. Indus-
trial experience is desirable,
MILITARY PRODUCTS
EMPLOYMENT OPPORTUNITIES
FOR RATES AND
R&D
ADDITIONAL
Advanced
Electron Devices
INFORMATION
Solid State
bi, PHOENIX!
Components &
g
Networks
Three Positions Of Singular
Interest To Physicists And/
Electronic Engineers
...where Motorola offers
In Phoenix - right now happy residents are basking in
General Electric's Electronics Lahore- '..?$!??...
tory-an organization conducting applied research and advance development in every branch of electronics-
has openings for men qualified for the
following
,
individual responsibilities.
1 To carry out experimental'
studies on electron optics for
special devices such as infra-
-71
p
red cameras and/or develop
electron -solid-state devices util-
izing electron beams interacting with
fields.
electro
magnetic
2 To conduct
experimental
studies related to masers, parametric amplifiers, infrared
detectors, thermoelectric-thermionic power sources, and
other advanced electron devices.
3
To
assume
responsibility
for analytical design of, and
applied research in magnetic
and dielectric solid state devices, sonic transducers, and
filters with LC networks.
The professional environment here is
one of vigorous intellectual interaction
between colleagues working in diverse
areas of electronic research and devel-
opment. More than 70% of the Professional Staff have advanced degrees.
P'
Requirements for all three positions:
PHD in Applied Physics or Electronics
(EE)
or MS plus
three years' ap-
plicable professional experience.
rd. Please write to:
great opportunities!
*4- ;
What a wonderful place to
live ... especially in view of the
fact that, at Motorola, opportu-
nity, recognition, pay and advancement are second to none.
Why not work where it's fun
to livp, and where the work is
rewarding in every way? Find
opportunities in this happy land
of sunshine.
If you are qualified
1.3AL
*
For
All Qualified
Applicants
for any of the posi-
tions below, write
or wire today.
ELECTRONIC ENGINEERS,
MECHANICAL ENGINEERS, PHYSICISTS
System Analysis, Design and Test
Communications
Navigation
Missile Guidance
Digital Computers
Data Processing and Display
Circuit Design, Development and Packaging
Microwave
Pulse and Video
Antenna
Digital and Analog
R -F and
Transistor
Automatic Test Equipment
Servos
Technical Writers & Illustrators
Write:
Mr. Kel Rowan
Western Military Electronics Center
Motorola, Inc., Dept. A-12
8201 E. McDowell Road
Phoenix, Arizona
Engineering positions also available at
Motorola, Inc. in Chicago, Illinois, and
Riverside, California.
tia
GENERAL
ELECTRIC
Syracuse, New York
Tice neareit You
ATLANTA, 3
1301 Rhodes -Haverty Bldg.
JAckson 3-6951
M. H. MILLER
BOSTON, 16
350 Park Square
HUbbard 2-7160
D. J. CASSIDY
CHICAGO, 11
520 No. Michigan Ave.
MOhawk 4-5800
W. J. HIGGENS
D. C. JACKM,AN
CLEVELAND, 13
1164 Illuminating Bldg.
SUperior 1-7000
W. B. SULLIVAN
F. X. ROBERTS
DALLAS,
1
1712 Commerce St., Vaughn Bldg.
Riverside 7-5117
GORDON JONES
F. E. HOLLAND
DETROIT, 26
856 Penobscot Bldg.
WOodward 2-1793
D. M. WATSON
LOS ANGELES, 17
1125 W. 6 St.
HUntley 2-5450
R. L. YOCOM
NEW YORK, 63
500 Fifth Ave.
OXford 5-5959
D. T. COSTER
R. P. LAWLESS
PHILADELPHIA, 3
Six Penn Center Plaza
LOcust 8-4330
T. W. McCLURE
H. W. BOZARTH
Div. 27-WX
Electronics Laboratory
Mcgraw--Witt
.7he
Radar
Mr. Robert F. Mason
Located at Electronics Park
Conlaci
70 -plus -degree sunshine.
out more about engineering
**i
About Classified Advertising
MOTOROLA, INC.
ST. LOUIS, 8
3615 Olive St.
JEfferson 5-4867
SAN FRANCISCO, 4
68 Post St.
DOuglas 2-4600
R. C. ALCORI'(
146
December 19, 1958 - ELECTRONICS engineering issue
EMPLOYMENT OPPORTUNITIES
PHILCO
PA LO A LTO
on the beautiful
San Francisco Peninsula
urgently needs senior
and project engineers
f m expanding operations
This is one of a series of professionally informative messages on
RCA Moorestown and the Ballistic Missile Early Warning System.
BMEWS AND THE
PROJECT ENGINEER
SYSTEMS ENGINEERS
DESIGN ENGINEERS
with degree in EE and at least
three years experience in military electronic systems, for advanced research and develop-
Time, money and the achievement of performance
specifications are the three dimensions in the world
of the Project Engineer. Scheduling, cost control
ment.
and technical accountability ... these are grave
ADVANCED PROGRAMS
Study and analysis of elec-
responsibilities on any engineering program involv-
tronic systems, especially those
associated with space programs involving satellites and
missiles.
MISSILE
TRACKING SYSTEMS
Design and development'of
tracking systems and their com-
ponents. Low frequency to microwave techniques. Antenna
design; antenna pattern measurement. Servo systems. Digital data systems; remote posi-
tion indicators; control consoles.
GROUND -SPACE
COMMUNICATIONS
Design and development of
microwave transmitters, receivers; microwave data transmission design; long distance,
wide band data transmission
system; telemetry.
DATA PROCESSING
System aspects of integration
of digital computers into weapons system involving scientific
computation and realtime control.
Send resume to
Mr. H. C. Horsley,
ing the national security. On BMEWS, with its
objective of early warning against enemy missile
attack, they comprise the most sensitive of engineering assignments, anywhere.
The Project Engineer assigned to BMEWS is a
business -scientist who has a proven record of
accomplishment in the creative engineering of
electronic systems and who has the interest and
acumen to view this work with a management
posture. He is also a scientist with the significant
trust of defining the interfaces of delicate personal
and group relationships. This talent must be especially refined in the BMEWS Project Engineer, for
BMEWS employs the multiform facilities and personnel of not only RCA Moorestown, the weapon
system manager, but also of several other major
corporations whose BMEWS effort is coordinated
by RCA.
RCA Moorestown invites Project Engineers to investigate the professional opportunities afforded by
this and other vital national defense
programs currently in progress. Please
Apo'
direct inquiries to Mr. W. J. Henry,
AL
AO 04olsked
Box V -10M.
Dept. E
PHILCO
Government & Industrial Div.
Western Development
Laboratories
3875 Fabian Way
Palo Alto, California
ELECTRONICS engineering issue - December 19, 1958
RAD/0 CORPORATION of AMERICA
MISSILE AND SURFACE RADAR DEPARTMENT
MOORESTOWN, N. J.
147
EMPLOYMENT OPPORTUNITIES
DISENCHANTED
CAREER
OPPORTUNITIES
ENGINEERS
eWith a company making premium grade
electronic equipment for aircraft for over
30 years. Located in the beautiful lake
region of Northern New Jersey, less than
Navigation Systems
Communication
Systems
Servos
If your present employer has failed to
utilize your full potential, why not per-
mit us to explore the parameters for
your personal qualifications with the
many dynamic young companies in
aviation, electronics, missiles and rockets. We now have in excess of 4,000
35 miles from New York City.
openings
Transistor Circuit Engineer
Tacan Engineers
Receiver Engineers
Transmitter Engineers
to:-
Transmitters
to
$40,000
FIDELITY PERSONNEL
SALARY $15,000 PR. YR.
A physicist with inorganic background for research
on semi -conductors in the field of diodes, transistors. and materials for high temperature application such as bismuth. telluride and silver telluride. Company client will assume all employment
Navigation Equipment
expense.
Engineers
MONARCH PERSONNEL
28 East Jackson, Chicago 4, Illinois
Antenna Design Engineer
Your Inquiries to
Advertisers Will
Have Special Value . . .
-for you-the advertiser-and
Enjoy the pleasure of working in a new laboratory
in a company whose products are known as the
highest quality in the industry.
Antennas
$8,000
SOLID STATE ELECTRONICS
Technical Writers
Receivers
the
1218 Chestnut Street, Philadelphia 7, Pa.
(VHF & UHF Frequencies)
Transistors
in
bracket, all of which are fee paid. Why
wait? Send resume in duplicate at once
publisher, if you mention
this publication. Advertisers value
highly this evidence of the publication you read. Satisfied advertisers enable the publishers to sethe
Write or call collect: Personnel Manager
cure more advertisers and-more
advertisers mean more information on more products or better
service-more value-to YOU.
AIRCRAFT RADIO CORPORATION
DE 4-1800-Ext. 238
Boonton, N. J.
SEARCHLIGHT Equipment Spotting Service
This service is aimed at helping you, the reader of "SEARCHLIGHT", to locate Surplus new and used
electronic equipment and components not currently advertised. (This service is for USER -BUYERS
only). No charge or obligation.
How to use: Check the dealer ads to see if what you want is currently advertised. If not, send us the
specifications of the equipment and/or components wanted on the coupon below, or on your own com-
pany letterhead to:
SEARCHLIGHT EQUIPMENT SPOTTING SERVICE
c/o ELECTRONICS-Classified Advertising
P.O. Box 12, New York 36, N. Y.
Your requirements will be brought promptly to the attention of the equipment dealers advertising in
this section. You will receive replies directly from them.
NO CHARGE NO OBLIGATION
SEARCHLIGHT EQUIPMENT SPOTTING SERVICE, c/o Electronics, 330 W. 42nd St., New York 36, N. Y.
Please help us locate the following used equipment:
NAME
TITLE
COMPANY
STREET
CITY
ZONE
STATE
12/19/58
December 19, 1958 - ELECTRONICS engineering issue
SEARCHLIGHT SECTION
,/
ELECTRONIC
WAR TERMINATION INVENTORIES
WRITE OR WIRE FOR INFORMATION ON OUR
COMPLETE LINE OF SURPLUS ELECTRONIC
COMPONENTS. ALL PRICES NET F.O.B.
PASADENA, CALIFORNIA
HIGH-OUALI
OPT CAL PARTS
5" Schmidt Ultra
Hi -Speed Objective
C&H
SALES CO.
formerly known as
U.S. Navy Metoscope, Type
B, 7" long with 5" SCHMIDT
ultra -high speed Objective
Lens (approx. f 0.5). Elaborate optical system, many
coated lenses. Uses 2 penlight batteries. Govt. cost ap-
2176-E East Colorado St.
Pasadena 8, California
Ryon 1-7393
prox. $300. Factory -new. Shipping wt. 9 lbs.
Price $19.95
Waterproof Carrying Case, extra. Shipping
wt. 3 lbs.
Price $3.00
Dual purpose U.S.N. floodlight throws
400 CYCLE, 3 PHASE GENERATOR
connected
Star
3
phase 22
amps. Delta connected
120 volt single phase
66 amps. Self excited.
Complete with control
box, voltage regulator,
AC voltmeter and fre.95.
strong beam of invisible infra -red
120/208
DMF3506M Continental Electric 24-30
volts input; 5.5-45 amps; cont. duty. Output:
phase; pf
115 volts; .44 amps; 400 cyc;
$39.50
1.0; 50 watts
12117 Bendix
Output: 24 volts; 400 cycles, 6 volt amperes,
$15.00
amp.
phase. Input: 24 VDC;
ONAN MOTOR GENERATOR SET
MG 075-G-1
12121 Bendix
Input: 24 volt D.C. 18 amp. 12000 r.p.m.
Output: 115 volts, 400 cycle, 3 -phase. 250
$49.50
volt amp, 7 pf.
12123 Bendix
Output: 115 V; 3 phase; 400 cycle; amps.
.5; Input: 24 VDC; 12 amp.
$49.50
cycle; 5.3 amps; .6KW;
PF 1.0; Also 26 VDC;
100 watt; 3.8 Amps;
Driven by 115-230 VAC
Input: 24-30 VDC; 8 amps.
$19.98 each
10285 Leland
Output: 115 volts AC; 750 VA, 3 phase, 400
pf and 26 volts. 50 VA single
phase, 400 cycle, .40 pf. Input: 27.5 VDC,
60 amps. cont. duty, 6000 rpm. Voltage and
frequency regulated.
$59.50
10563 Leland
Output: 115 VAC; 400 cycle; 3 -phase; 115
VA; 75 pf. Input: 28.5 VDC; 12 amps. $25.00
PE109 Leland
Output: 115 VAC, 400 cyc.;
single phase;
Input: 13.5 VDC; 29
$50 00
amp.
PE218 Leland
VAC;
single
phase
pf.
90;
380/500 cycle; 1500 VA. Input: 25-28 VDC;
92 amps.; 8000 rpm.
$30.00
AN 3499 Eicor, Class "A"
Input: 27.5 volts at 9.2 amps. AC. Output:
115 volts, 400 cycles; 3 phase, 100 voltamp;
continuous duty.
Price $39.50 each
MG54D Bendix Frequency & Voltage Reg.
Output: 200/115 volts; 400 cycle, single or
3 phase; .80 pf, 250 VA. Input: 28 VDC, 22
amps.
$99.50
SPERRY VERTICAL GYRO
Mod. 8K63AC. 115 volts,
400
SYNCHROS
$34.50
34.50
34.50
34.50
37.50
37.50
37.50
12.50
1HDG
1HCT
1HG
1SF Syn. Mir. 115/90V 400 cy.
23TR6 torque receiver, 115/90 VAC,
60 cycle
23CT6 control transformer, 90/1V per
degree, 60 cycle
23CX6 control transmitter, 115/90 VAC,
60 cycle
5CT Cont. Trans. 90/55V 60 cy.
5D Diff. Mtr. 90/90V 60 cy.
5DG Diff. Gen. 90/90V 60 cy.
5F Syn. Mtr. 115/90VAC 60 cy.
5G Syn. Gen. 115/90VAC 60 cy.
5HCT Cont. Trans. 90/55V 60 cy.
5SDG Diff. Gen. 90/90V 400 cy.
6DG Diff. Gen. 90/90V 60 cy.
6G Syn. Gen. 115/90VAC 60 cy.
7G Syn. Gen. 115/90VAC 60 cy.
7DG differential generator, 90/90 volts,
60 cycle
C56701 Type 11-4 Rep. 115V 60 cy.
C69405-2 Type 1-1 Transm. 115V 60 cy.
C69406 Syn. Transm. 115V 60 cy.
C69406-1 Type 11-2 Rep. 115V 60 cy.
C76166 Volt. Rec. 115V 60 cy.
C78248 Syn. Transm. 115V 60 cy.
C78249 Syn. Diff. 115V 60 cy.
C78410 Repeater 115V 60 cy.
C78863 Repeater 115V 60 cy.
C79331 Transm. Type 1-4 115V 60 cy.
watts,
37.50
20.00
20 00
20.00
20.00
10.00
12.50
5.00
20.00
7.50
20.00
volts, 400
Speed 20,000
20,000
runup, synchro
pickoffs, roll
360°, pitch 85°. Synchro excitation 26 volts,
400 cycle, 150 m.a. Vertical accuracy -±-1/2°.
Weight
31/2 lbs.
H.
W., 41/2"
Approx. dim. 53/4"
L., 41/2"
Price $35.00
rpm, ang. momentum 12,500,000
gm -cm 2/sec. Erec-
tion system 27 VAC,
400 cycles, time 5 min to 1/2°. Weight 5.5 lbs.
ELECTRONICS engineering issue - December 19, 1958
Reverse
21/4-0-21/4.
Input
shaft
Forward & Reverse 4-0-4. In-
37.50
34.50
34.50
34.50
34.50
34.50
37.50
12.50
25.00
34.50
42.50
pickoffs 890
3 -minute
&
spline gear 12 teeth 9/32" dia. 3/a" long. Out-
37.50
ohms, 40 volts
max. AC or DC.
#653265. Motor
115 volts, 3 phase, 400
No. 145
Forward
37.50
phase, 35 watts.
Pitch and roll
P o t e ntiometer
Part
INTEGRATORS
put shaft 15/64" dia. x 15/32" long. Control
shaft 11/32" x 3/8" long. Cast aluminum construction. Approx. size 3" x
3" x 23/4".
cycles, single
8
phase, 40
3
VARIABLE SPIED BALL DISC
1CT cont. Trans 90/55V 60 cy.
1DG Diff. Gen. 90/90V 60 cy.
1F Syn. Mtr. 115/90V 60 cy.
1G Gen. 115V 60 cy.
115
RPM.
cps,
watts. Has settable induction pick -off. $10.00
SELSYNS-
HONEYWELL VERTICAL GYRO
MODEL JG7003A-1
cycle,
DICATOR and CON
TROL UNIT
Price $135.00
Output: 115 VAC, 400 cycles; single phase.
115
TIONAL GYRO IN-
single phase; 3450 rpm;
12147-1 Pioneer
Output:
GENERAL ELECTRIC AUTO PILOT DIREC-
10.5 amps.
$24.50
12142-1-A Bendix
Output: 115 volts, 3 phase, 400 cycle, 250
VA.
Input: 27.5 VDC, 22 amps. Voltage
$99.50
and frequency regulated.
1.53 amp.; 8000 rpm.
400 CYCLE 1/3 PHASE GENERATOR
VAC. 3 KVA. Mfg. Bogue Elect. Mod.
2800S. External excitation 107 VDC. 1.1 amp.
3450 rpm. 1" shaft.
$200.00
!NNW-2hp motor; 60 cycle;
3 phase; 400 cycle; 10
VA; 6 PF. Input: 27.5 volts DC; 1.25 amps.
cycle, .90
-'C-
115
Generator 115 VAC; 480
12126-2-A Bendix
Output: 26 volts;
$14.95
1-
or 3 -phase, 200 watts.
4,000 r.p.m. Approx.
dimensions: 43/4" dia.;
3" long; 1/2" shaft,
AN connector. $75.00
Price $395.00 each
1
1
wt. 23 lbs.
Shipping
400 CYCLE PM GENERATOR
20".
Output: 115 VAC; 400 cyc; single phase; .45
$25.00
amp. Input: 24 VDC, 5 amps
batteries.
115/200 volts A.C.
dim. of unit: 21"x18"x
12116-2-A Bendix
rays.
With infra -red lens, spore sealed beam
lamp,
quency meter. Shaft 1"
dia., 2" long; overall
1
receiver,
fro -red
BY MASTER ELECTRICType AG, frame 364Y,
7.5 kw, 3428 rpm, pf
INVERTERS
System
Leas
Eastman Kodak in -
Price $35.00 each
No. 146
put shaft 5/16" dia.
long.
dia.
x 9/16"
long.
Cast
Output
x
3/4"
shaft 15/64"
long. Control
shaft 11/64" dia. x 11/16"
struction.
aluminum conApprox. size 41/2"
i.1
$17.50 ea.
x 41/2" x 4". (All Shafts Ball Bearing Supported)
SMALL DC
MOTORS
(approx. size overall 33/4" x 11/4" dia.:)
5067043 Delco 12 VDC PM 1" x 1" x 2",
10,000 rpm.
$7.50
5067126 Delco PM, 27 VDC, 125 RPM,
15.00 ea.
Governor Controlled
5069600 Delco PM 27.5 VDC 250 rpm
12.50
15.00
5069230 Delco PM 27.5 VDC 145 rpm
5068750 Delco 27.5 VDC 160 rpm w. brake 6.50
5068571 Delco PM 27.5 VDC 10,000 rpm
(1x1x2")
5.00
5069790 Delco PM, 27 VDC, 100 RPM,
Governor Controlled
15.00 ea.
5072735 Delco 27 VDC 200 rpm governor con15.00
trolled.
5BAI0AII8 GE 24 VDC 110 rpm
10.00
5BA10AJ37 GE 27 VDC 250 rpm reversible 10.00
5BA10A.152 27 VDC 145 rpm reversible 12.50
5BA10AJ50, G.E., 12 VDC, 140 rpm
15.00
5BAIOF.b401B, G.E. 28 VDC, 215 rpm,
10 oz. in., .7 amp, contains brake
15.00
5BA1OFJ421, G.E. 26 VDC, 4 rpm, reversible,
6 oz. in., .65 amp
15.00
S.
S.
FD6-21
Diehl
1" x 1" x 2".
24 VDC PM 10,000 rpm.
4.00
149
SEARCHLIGHT SECTION
THIS MONTH ONLY! NEVER BEFORE!
50% DISCOUNT ON OUR REGULAR PRICES.
TS -147 X TEST SET
Hard -to -get X -Band Signal Generator
Now Available
Test Set TS 1.17 UP is a portable Microwave Signal Generator designed for testing and adjusting beacon equipment
and radar systems which operate within
the frequency range of 8500 MC to 9600
MC.
$895.00
OTHER TEST EQUIPMENT
TS148/UP SPECTRUM ANALYZER
Laboratory Used, Checked Out, Surplus
TS3A S -Band Power &Freq
Meter
$59.00
TS RF-4 S -Band Fanthom
Target
25.00
TSIO Calibrator
25.00
TSI1 Meter
22.50
TS12 VSWR X -Band Meter 149.50
TS13 X -Band Signal Generator
128.00
TS14 S -Band Signal Generator
125.00
TS15 Gauss Meter
55 . 00
TS16 Calibrator
20.00
T$10 Calibrator
100.00
TS28
115.00
TS33 X -Band Freq. Meter 75.00
TS34 Synchroscope
125.00
T834A Synchroscope
149.50
TS35 X -Band Signal Generator
99.00
TS35A X -Band Signal Generator
125.00
TS36 X -Band Power Meter 75.00
TS45 X -Band Signal Source 50.00
TS47 40-500 MC Signal Generator
145.00
T861 S -Band Echo Box
99.00
TS62 X -Band Echo Box
125.00
TS76 Meter and Plumbing 20.00
1-96 Signal Generator
125 . 00
TS100 Synchroscope
75.00
TS102A Calibrator
$125.00
TS108 Dummy Load
75.00
TS110 S -Band Echo Box
35.00
TS117 Freq. Meter
200.00
TS125 Power Meter
195.00
TS126 Synchroscope
75.00
TS127 Freq. Meter
25.00
TS146 X -Band Signal Generator
99.00
TS147 X -Band Signal Generator
895 . 00
TS148 X -Band Spec. Analyzer
p
TS173 Freq. Meter
125 . 00
TS174 Freq. Meter
150 . 00
TS175 Freq. Meter
225.00
TS182 Freq. Meter High
Frequency
50.00
TS186 Freq. Meter 1001/10000 MC
700 . 00
TS226 Calibrator
75.00
TS239 Synchroscope
795.00
TS251 Calibrator
125.00
T8258 X -Band Signal Generator
125.00
TS259 K -Band Signal Gen895 . 00
erator
45.00
TS268 Crystal Tester
175.00
TS270 S -Bond Echo Box
TS419
795.00
55.00
TS545 1 -Band EOM Box
550
RADIO RESEARCH
FIFTH AVE.
NEW YORK
INSTRUMENT CO.
JUDSON
6-4691
PPI indicator + 16111 10 cm. High
power for airway control missile -satellite tracking.
radio astronomy R & D. As new Complete.
airborne Radar Mfg. by
AN/APS-10 Complete
G.E. 3cm. using 2J42 Magnetron
fur Navigation, Mapping, Weather, Collision Avoidt.tice, Like New.
Ground Control Ap(DCA)
AN/MPN-1A
proach Radar, 30 ft trailer with
"cm precision and 10cm Search Radars as used
4s CAA. Full desc. Vol. 11 MIT Rad Lab Series
cutters
ENGINEERING ASSOCIATES
434 Patterson Road
Dayton 19, Ohio
(removed from business machines)
$3-75
list price $22.00 our price
$4.50
$60.00 timing unit
$9.50
FOR SALE
BC779 super pros checked out and guaranteed, S74.50. Power supplies for same,
524.50, interconnecting cord $2.50. All
goods guaranteed. Substantial quantity
available.
GIZMOS & SUCH, Still River, Mass.
motor alone costs 32.00
TRANSFORMER 110/220/V to 32/I5V,
Amps., 2 KVA, Shipping Wt 92 lbs....$3000
Protect your Test Equipment
$2.00
50W Isolation Transformer
60
BLAN
EST. 19 23
INCLUDE
POSTAGE
64 H Dey S.
New York 7
N
Y.
MAGNETRON MAGNETS
A
SO -9
5200 GAUSS
Airgap 1/2"
Poles: 10/4"
to 3/4"
Money saving prices on tubes. TV, Radio, Trans
mining, and Industrial Types. New, 1st quality,
guaranteed. Top name brands only. Government
surplus and commercial test, lab, and communications equipment in stook. Sell us your excess tubes
and equipment. Unused, clean tubes of all types
wanted. Send specific details in first letter. Write
for "Green Sheet" catalog 250.
BARRY ELECTRONICS CORP.
New York 12, N. Y.
WA 5-7000
512 Broadway
(new or professionally reconditioned)
experienced problem solvers and budget -
1 /40 HP.
sec. 8.13.
275 kw Compact wt. 468 lbs. rotating yoke
PPT 4, 20, 80 mile ranges, ideal for weather
forecasting. Lab. Brand new. FCC approved $950,
Y.
lab grade TEST EQUIPMENT for sale
standard brands -militarysurplus
not been changed for years.
HAYDON DC Motor, part of a
:t11 R. trailer 01,,.: sat, antenna system.
ROWS, INC,
Please look in your back Engineering issues of Electronics for our ads that have
F-28/APN-19 FILTER CAVITY
.Ian. spec: Tuneable 2700-2900'11c, 1.5db max. loss
at ctr, free over band. New, $37.50 each.
SCR -584
Phone: ORegon 4-7070
Cables: TELSERUP
$3.00 each in lots of 10.
WESTON self generating cell
COMPLETE RADAR SYSTEMS
of
Transistors and Diodes
We have the hard to get old
type tubes not manufactured at present, like:
olA, 1134P, 6AL6, 32, 20.
77, 78, 6C6, 6D6. ILD5,
6A3, 6A5G, and many,
many others.
119 PRINCE ST.
NEW YORK 12, N.
Radiation Lab series Vol. I pg 284 and 209. Vol.
2:; pg 233. For full tracking response. Includes
redestal drives seisms, etc. Excellent used condition. First time these pedestals have been available for purchase. Control consoles also in stock.
FOR SALE: IN STOCK -
Volt.
Ask us for quantities
Minimum
Order,
$25.00
ENG1NEERS-EXPERIMENTERS-DESIGNERS
Full azimuth and elevation sweeps, 30 degree
azimuth. 205 degree elevation. Accuracy-" one
mill or better in angle, 6 ft. dish, fully desc MIT,
I
Vibrators, 2, 6, 12. 24, 1111
SCR718C Altimeters
PURCHASING AGENTS
SCR 584-SKYSWEEP ANTENNA PEDESTAL
lbs. Hi -Temp Teflon
Wire No. 36 at 4.50 per lb.
10,000 pounds Alnico 1
magnetron magnets.
400
APS4 Radar Transmitter
S08 Radar Transmitter
Radar Magnetron raisers
APR4 Radar Receiver
APR 5 Radar Receiver
APR 10 Radar Receiver
APS 23 Radar Receiver
Transmitter
APT2 Radar Jammer
APT5 Radar ,Jammer
Marcony Spectrum Analyzer
X band type TF890/1
aWestinghouse Motors
AN/APS-10 RF HEAD
10kv output. hydrogen thyratron mod. .8
oticrosec. rcvr 30 me IF 5.5 me bandwidth. Uses
tubes 3xtals plus 2J42 magnetron. $375 ea. Full
desc. MIT. Rad. lab. series Vol. pg 616-625.
Write for Price
OTHER MATERIAL
SURPLUS EQUIPMENT
UPMI Test Analyzer
UPM7 S -Band Analyzer
UPM33
APAIO Pamoramic Receiver
APA38 Panoramic Receiver
APA62 Panoramic Receiver
Size:7" High
Base: 2%" x
5200 GAUSS
Airgap
Poles: Pk"
to 3/4"
Size:7" High
Base: PA" x
6/a"
Weight: 13 lbs.
1500 GAUSS
Airgap
Size 6' High
Base: 3"x10"
FAIR RADIO SALES
ST.
Radio 762-ASI
cabinet.
with
motor driven
Good used condition. $754.00
W-9393, Electronics
68 Post St., San Francisco 4, Calif.
WANTED
LINDSAY, ONTARIO, CANADA
Poles: 10/4"
SURPLUS MAGNETS, MOTORS, DYNAMOTORS, etc.
132 SO. MAIN
General
sweep in
DUMONT 215A SCOPE
GR-916B OR SIMILAR
LINDSAY ANTENNA
Weight: 20 lbs.
Weight:9% lbs.
Price: $12.95
Price: $14.95
Price: $16.95
SEND FOR CATALOG ON OTHER TYPE
61/2"
VIBRATION ANALYZERS
4
LIMA, OHIO
If there is anything you want
that other readers can supply
OR ... something you don't want that other readers can use Advertise it in the
SEARCHLIGHT SECTION
Decen'ber 19, 1958 - ELECTRONICS engineering issue
WINCHESTER
CONNECTORS
Stocked in DEPTH
at CORONET
Authorized
Winchester Distributor
INDEX TO
ADVERTISERS
*AC Electronics Division
*Ace Electronics Associates Inc
Aeronautical Communications
Equipment Inc.
*Airpax Products Co
Allegheny Ludlum Steel Corp
*Allen-Bradley Co.
*American Time Products Inc
71
104
48
110
50
21
54
*Applied Research, Inc.123
*Arnold Enginering Co.
*Assembly Products, Inc.
10
114
A utonetics
26
Write for catalog
No. 358
Fast DELIVERY
at Factory Prices
0P
411
Coro
Call COrtlandt 7-3760
120 LIBERTY STREET
NEW YORK 6, N Y
CIRCLE 207 READERS SERVICE CARD
WIDEST
RANGE OF
PRECISION
fci
FILM CAPACITORS
FROM
The
Bell Telephone Laboratories
*Bendix Aviation Corp.
Itcsd Bank Div.
*Bendix-Pacific-Division Bendix
Aviation Corp.
*Brush Instruments Division of Clevite
Corp.
*Burnell Mfg. C'o.
*Bussmann Mfg., Co.
Buyers Guide Revisions
47
137
134
49
23
22
121
ethylene, teflon, and mylar
film dielectrics. Designed
for critical applications. FCI
plastic
Capacitors have high insulation
resistance, low power factor and
dielectric absorption, and are
available in a wide variety of
capacitance values, tolerances,
casings and sizes. Write
for FREE CATALOG show-
fci
ing complete line.
63
57
135
151
*Coto -Coil Co., Inc.
*Cross Co., H.
140
132
132
*Curtiss-Wright Corp.
Daytona Beach Chamber of Commerce. 141
du Pout de Nemours & Co. (Inc.) E. I.,
Pigments Dept.
60
would be helpless without power
supplies -without dependable DC to
operate the controls and electronic
equipments that enable them to de-
ITT Industrial Products Division
is one of America's leading producers
of these vital units-regulated, un-
regulated, and integrated - ground
and airborne types.
This comparatively new ITT division-created to increase ITT's effectiveness in commercial and industrial markets - also produces power
supplies for missiles, closed-circ tit
TV equipment, transistorized moi,ile
radio equipment, miniaturized in'
red viewers, analog- to- digital
::verters, large -screen oscillosoc
and other electronic devices. It
supplies a full line of testing
*Eitel-McCullough , Luc.
5
Electro Instruments Inc.
64
Electronics
Essex Wire Corp., Magnet Wire Division
Esterline-Angus Company, Inc
121
62
136
a.id
measuring instruments.
Engineers with an eye to the future will find exceptional (n) ortunities for stability and achievem nt
in the diversified activities of this
fast-growing domestic division of the
world-wide ITT system.
For information on opportunities at plant
Ferrotran Electronics Co.
*Film Capacitors, Inc.
*Freed Transformer Co., Inc
G -L Electronics
Garrett Corporation, The
*General Ceramics Corp.
*General Electric Co.
Apparatus
Tube Dept
Resistors
*General Radio Co.
140
151
152
130
102, 103
ITT INDUSTRIAL
PRODUCTS DIVISION
A Division of
129
52, 53, 68, 69
102
3
* See advertisement in the June, 1958 Mid -Month
ELECTRONICS BUYERS' GUIDE for complete line
of products or services.
locations in San Fernando, Cal., and Lodi,
N. J., address your inquiry to ITT Technical Placement Office, 67 Broad St., N.Y. 4.
70
FILM CAPACITORS, INC.
3405 PARK AVENUE NEW YORK 56, N.Y.
Our mightiest bombers and fighters
liver their devastating blows!
CBS Hytron, A Div. of Columbia
Broadcasting System, Inc.
*Carr Fastener Co. Div. United -Carr
Fastener Corp.
*Cohn Corp., Sigmund
Coronet Electronics, Inc.
widest range of
time -tested stabilized
precision capacitors avail-
able with polystyrene, poly-
The power
that puts the power
in Air Power!
INTERNATIONAL TELEPHONE
AND TELEGRAPH CORPORATION
67 Broad Street New York
CIRCLE 206 READERS SERVICE CARD
ELECTRONICS engineering issue - December 19, 1958
151
1".1
FREED
TELEMETERI NG
COMPONENTS
FOR IMMEDIATE DELIVERY
FROM STOCK
BAND PASS FILTERS
DISCRIMINATORS
..e a=
r .i jirrON8`'
73 o An
0Z IIc. 'a Z "
N
N
t`
24-.-g..
'9
ns I ll,'
cr
.- u :'.
u app
u.
.9% 19 q,
o cl.
is
Z
Li
15.
51/2
0.5
FBP-34
V
V
DST -10
FBP-35
V
V
.4
F111,11
.56
V
V
DST -11
FBP-12
FBP-36
V
.73
V
V
D5T-12
F51-13
FBP-37
V
.96
V
V
DST -13
RP- I 4
FIP-35
V
1.3-
V
V
DST -14
FBP-15
FBP-39
V
1.7
V
V
DST -15
FBP-16
RIP -40
2.3
V
V
DST -16
FIIP-17
FBP-41
V
V
3.0
FIP-111
FIP-42
FIP-19
FBP-20
DST -17
3.9
V
V
V
V
DST -18
FBP-43
V
V
5.4
V
V
DST -19
V
V
7.35
V
D5T-20
FLIP -21
FIP-44
919-45
FBP-22
FIP-46
F59-23
FBP-24
10.5
V
V
V
12.3
V
V
DST -22
FBP-47
14.5
V
V
DST -23
F111-411
22.0
V
V
FII1-25
FBP-49
22.0
F59-26
F111,50
30.0
FBP-27
FIP-51
30.0
F59-25
FIP-52
40.0
FBP-29
F111,53
40.0
FBP-30
919-54
52.5
FOP -31
FLIP -55
52.5
F111-32
F5P-56
70.0
FI11-33
FIP-57
70.0
DST -24
V
V
V
DST -29
V
DST -25
V
V
V
t. ---,
..1.,
2. Z
u
5 e.-
01
..o
-- .gz
u LL2 .f u
,T,
'
*Hughes Products, a Div. of Hughes
Aircraft Co.
15,
30
*Indiana Steel Products Co
*Industrial Products, Division of
International Telephone & Telegraph
Corp.
V
051-31
V
DST -27
V
V
DST -32
V
DST -211
V
V
DST -33
e.
g3----
u . LE
LL
On
-az
u
irj'o.
;C
.1;
<
LL.
790
6
LP0-1 9
81
LPO-2 8
1.10-11
II
LPO-20
110
L10-29
900
LPO-12
11
LPO-21
160
L10-30
1,050
L10-13
14
LPO-22
155
1,0-31
1,200
LPO-14
20
110-23
220
1.10-32
1,600
.?
....' II!: 7
LPO-15
25
1,0-24
330
LPO-33
2,100
o
1.10-16
35
00-25
450
1,0-34
7,200
2 a 2 :3
110-17
45
110-26
600
190-35
10,000
n. ..e, cp,
1.10-111
60
1,0-27
660
se
2
,L,
*Kepco Laboratories
*Kintel A Division of Cohn Electronics,
Inc.
*Kgrman Electric Co., Inc
*Lambda Electronics Corp.
*Lapp Insulator Co., Inc
*Leach Corporation
Leland Inc., G. H.
Levin & Son, Inc., Louis
011-10
400
01-17
3,000
L/1-23
14,500
111-11
560
121-18
3,900
011-24
1,1-12
730
1.11-19
5,400
LPI-25
22,000 0`
30,000 '' 11
13
108
95
116
CLASSIFIED ADVERTISING
F. J. Eberle, Business Mgr.
121-20
7,350
LPI-26
40,000
LPI-21
10,500
1.11-27
52,500 to Is 2 E
1.11-15
1,700
1,1-22
12,300
1.11-211
70,000
LPI-16
2,300
Characteristic impedance of 111-10 rhos 23=30,000tt
of 191-24 rho. 211=5,10011
rt g g I
g
133
117
Nems-Clarke, Inc.
*Northern Radio Co., Inc
144
58,
*Oak Mfg. Co.
65
19
111
*Radio Corporation of America
*Raytheon Mfg. Company
4th Cover
6
122, 143
*Sorensen & Co., Inc
CATALOG.
Corporation
126
*Sperry Microwave Electronics Company,
Division of Sperry Rand Corp
31
Sprague Electric Co.
17
BROOKLYN (RIDGEWOOD1 27, N. Y.
WANTED
Equipment
150
ADVERTISERS INDEX
Aircraft Radio Corporation
148
Barry Electronics Company
150
Blan
150
C & H Sales Company
149
Engineering Associates
150
Fair Radio Sales
Fidelity Personnel Service
150
General Electric Co
146
Gizmos & Such
150
International Business Machines Corp...
Liberty Electronics Inc.
145
Lindsay
150
Monarch Personnel
148
Motorola Inc.
146
148
105
page TRANSFORMER CATALOG. Also ask for
complete LABORATORY TEST INSTRUMENT
1722 WEIRFIELD STREET
149, 150
59
*Sanders Associates, Inc.
*Sofa Electric Co.
TRANSFORMER CO., INC.
EQUIPMENT
(Used or Surplus New)
For Sale
74
Write for detailed information on these and
other components for military and commercial applications. Send for NEW 48
FREED
EMPLOYMENT OPPORTUNITIES..145-148
109
0 s t, a
960
1,300
73
124
,,
LPI-14.
1.11-13
29
Weston Electrical Instrirment Corp., a
Division of Daystrom, Inc.
72,
White Dental Mfg. Co., S. S.
134
9
Parker Seal Company
*Phelps -Dodge Copper Products Corp..
Inca Mfg. Div.
Potter & Brumfield, Inc.
INPUT
134
28,
97
VVAA
Characteristic impedance of 511=-33011
144
Zippertubing Co., The
OUTPUT
00-10
*Weinschel Engr. & Mfg. Corp
*Weneo Manufacturing Co.
Westinghouse Electric Corp.
*Industrial Test Equipment Co.
135
*International Electronic Research Corp. 118
*International Resistance Co.
33
*International Tel. & Tel. Corp
107, 151
Mallory and Co., Inc., P. R.
*Marconi Instruments, Ltd.
*Microwave Associates, Die.
;6
6 cc'
u E. Lis
67
107, 151
a.
a.
U. S. Rubber Co
139
DST -26
V
V
55
DST -30
V
V
25
115
*Technology Instrument Corp.
136
*Telrex Laboratories
*Texas Instruments Incorporated..3rd Cover
140
Thiokol Chemical Corp
*Transitron Electronic Corp.
51
*Tung -Sol Electric, Inc.
61
DST -2I
DISCRIMINATOR LOW PASS FLIERS
89
Hallamore Electronics Co.
27
Handy & Harman
56
*Haydon Co., Inc., A. W
141
*Haydon Division of General Time
125
*Hewlett-Packard Comany
2nd Cover
1.0
F119-10
.2
4
131
*Hudson Tool & Die Company. Inc
cn
13
r, c
..=,
.!,-,
Obi
a
as t.,
II
11
'E.). -
.-0
r,
66
101
24,
,..,
1215
*General Transistor Corp.
Genisco, Inc.
Good -all Electric Mfg. Co.
*Grant Pulley & Hardware Corp.
Gulton Industries, Inc.
127
150
Philco Western Development Laboratories.147
Radio Corporation of America
Radio -Research Instrument Company
147
150
18
98,
99
See advertisement in the June, 1958 Mid -Month
ELECTRONICS BUYERS' GUIDE for complete line
Spectral Electronics, Div. of Carrier
of products or services.
This index is published as a service. Every care is taken
Statham Instruments, Inc.
113
to make it accurate, but ELECTRONICS assumes no
Stromberg-Carlson Company
Superior Cable Corp
142
responsibilities for errors or omissions.
128
CIRCLE 208 READERS SERVICE CARD
152
December
19, 7958 -
ELECTRONICS engineering issue
ACTUAL SIZE PHOTO
... give you 750 mA at 200, 400
and 600 PIV
IMMEDIATE DELIVERY! You get the inherent high
reliability of silicon with new TI silicon economy rectifiers
now available in commercial production quantities!
These newest TI rectifiers withstand a surge current of 32 amps up
100
Zo
to one millisecond and operate at temperatures up to + 100°C.
Miniature nylon -epoxy case, 0.25 inch long and 0.20 inch in
diameter, meets the rugged environments of MIL -STD -202A.
Priced competitively with selenium and germanium rectifiers, the
new TI series is ideal for use in your low current power supplies,
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small size, reliability and low cost demand important consideration.
Check the specifications below for the unit most suited to your
O
75
`TEMPERATURE RATING CURVE FOR AVERAGE
RECTIFIED CURRENT AND RECURRENT PEAK
CURRENT
25
4.#
Er,
8
20
particular requirements.
40
00
T - AMBIENT TEMPERATURE IS__U
I..LIU
Quantities to meet your immediate needs are now in stock
at TI distributors or through your nearest TI sales office.
40
*t
Max Ratings at 25°C
PIV
Peak Inverse Voltage
Vrms RMS Voltage
I,
11
TA
Aver, .e Rectified
Forward Current
Recurrent Peak Current
Operating Temperature
1N2069
1N2070
200
140
750
400
280
750
6
6
1N2071
600
420
750
6
to +100
I
V
1
V
tg
fg
mA
'v
A
°C
30
SURGE CURRENT RATING @ 100 C
20
ro'
ie
.
3
I
to
26'
Electrical Specs at 100°C
Maximum Dynamic Reverse
Current
Maximum Dynamic Forward
Voltage Drop
.2
mA
0.001
C.01
0.1
10
SUR 3E DURATION - SECONDS
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WESTERN DISTRICT
B.J. Battaglia
R. P. Schmit
N. R. Hanger,
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Holmes
J. R. Bennett
I.
W. D. Leahy
W. H. pc
Manoger
G R. Rivers,
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EASTERN
D. G. Koch.
R. A. Bassell
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in 199.
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our
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M. D. Boylan
G. E. Jones
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T, B. Perkins
R. D. Rekhert
J, J, Vavri;lc
J. \"(,cht,i
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R. E. Nelson
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