Tektronix TM 500 FG 503 Function Generator INSTRUCTION MANUAL

TEKTRONDOEO
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INSTRUCTION MANUAL
Tektronix, Inc.
Р.О. Вох 500
Serial Number
Beaverton, Oregon 97005
First Printing APR 1974
070-1727-00
WARRANTY
All TEKTRONIX instruments are warranted against
defective materials and workmanship for one year.
Any questions with respect to the warranty should
be taken up with your TEKTRONIX Field Engineer or
representative.
All requests for repairs and replacement parts
should be directed to the TEKTRONIX Field Office
or representative in your area. This will assure you
the fastest possible service. Please include the
instrument Type Number or Part Number and Serial
Number with all requests for parts or service.
Specifications and price change privileges reserved.
Copyright © 1974 by Tektronix, Inc., Beaverton,
Oregon. Printed in the United States of America. All
rights reserved. Contents of this publication may not
be reproduced in any form without permission of
Tektronix, Inc.
U.S.A. and foreign TEKTRONIX products covered
by U.S. and foreign patents and/or patents pending.
TEKTRONIX is a registered trademark of Tektronix,
Inc.
SECTION 1
SECTION 2
SECTION 3
TABLE OF CONTENTS
OPERATING INSTRUCTIONS
Introduction
Instrument Description
Initial Operation
Functions Available At Rear Connector
Operating Considerations
Output Connections
Risetime and Falltime
Impedance Matching
Basic Operation
Free-Running Output
Voltage-Controlled Frequency
(VCF) Output
Custom Timing Capacitor Selection
Typical VCF Application
Electrical Characteristics
THEORY OF OPERATION
Introduction
Triangle Generator
Sine Shaper
Output Amplifier
Power Supplies
SERVICE INFORMATION
Symbols and Reference Designators
Electrical Replaceable Parts List
Front Panel Controls and Connectors
Calibration Procedure
Services Available
Maintenance
Test Equipment
Parts Location Grid
Rear Interface Connector Assignments
Block Diagram
Generator Loop Schematic
Output Amplifier Schematic
Power Supplies Schematic
Mechanical Replaceable Parts List
Exploded View
Accessories and Repackaging
CHANGE INFORMATION
2-1
2-1
2-1
2-2
3-1
3-2
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TEKTRONIX > FG 503 FUNCTION GENERATOR |
FG 503
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Section 1—FG 503
OPERATING
INSTRUCTIONS
INTRODUCTION
INSTRUMENT DESCRIPTION
The FG 503 Function Generator is designed to operate
in a TM 500 series power module. Low distortion sine,
square and triangle waveforms from 1 Hz to 3 MHz, are
available at the front panel. A +2.5 V square wave trigger
also is available at the front panel. Variable dc offset of
—5 V is provided.
A custom timing switch position is provided. This
allows the user to install a timing capacitor for custom
tailoring the frequency range of the FG 503.
A voltage-controlled frequency (VCF) input controls
the output frequency from an external voltage source. The
output frequency can be swept above or below the
selected frequency, to a maximum of 1000:1, depending
on the polarity and amplitude of the VCF input and the
selected output frequency.
The variety of swept and modulated signals available
from the FG 503 make it especially useful for such
applications as testing servo-system or amplifier
response, distortion and stability. It is also useful for FM
generation or as a variable beat-frequency oscillator. The
square wave trigger output can be used as a source for
TTL logic, or to synchronize an external device such as an
oscilloscope or counter.
INITIAL OPERATION
The FG 503 is calibrated and ready for use when
received. It is designed to operate in any compartment of
the TM 500 series power module. Refer to the power
module instruction manual for line voltage requirements
and power module operation. See Fig. 1-1 for installation-
removal procedure. Check that the FG 503is fully inserted
in the power module. Pull the PWR switch on the power
module. Check that the green POWER light on the FG 503
Is on. The Controls, Connectors and Adjustments foldout
— = -_—
POWER
MODULE 7
pp. Barrier
Fig. 1-1. FG 503 installation and removal.
1-1
Operating Instructions—FG 503
page in Section 3 gives a complete description ofthe front
panel controls and connectors.
FUNCTIONS AVAILABLE AT REAR CONNECTOR
Refer to the rear connector assignment illustration in
the Service Section of this manual for pin assignments.
A slot between pins 23 and 24 on the rear connector
identifies the FG 503 as a member of the signal source
family. A barrier may be inserted in the corresponding
position of the power module jack, to prevent other than
signal source plug-ins from being used in that compart-
ment. This protects the plug-in should specialized con-
nections be made to that compartment. Consult the
Building A System section of the power module manual
for further information.
OPERATING CONSIDERATIONS
OUTPUT CONNECTIONS
The output of the FG 503 is designed to operate as a
50 Q voltage source working into a 50 Q load. At higher
frequencies, an unterminated or improperly terminated
output will cause excessive aberrations on the output
waveform (see Impedance Matching discussion). Loads
less than 50 Q will reduce the waveform amplitude.
Excessive distortion or aberrations, due to improper
termination, are less likely to occur at the lower frequen-
cies (especially with sine and triangle waveforms). To
ensure waveform purity, observe the following
precautions:
1. Use good quality 50 QQ coaxial cables and connec-
tors.
2. Make all connections tight and as short as possible.
3. Use good quality attenuators. if it is necessary to
reduce waveform amplitude to sensitive circuits.
4. Use terminators or impedance-matching devices to
avoid reflections when using long cables (six feet or
more).
5. Ensure that attenuators, terminations, etc. have
adequate power handling capabilities for the output
waveform.
RISETIME AND FALLTIME
If the output pulse from the FG 503 is used to measure
the rise or falltime of a device, consider the risetime
characteristics of the associated equipment used. If the
risetime of the device under test is at least ten times
greater than the combined risetimes ofthe FG 503 plus the
monitering oscilloscope and associated cables, the error
1-2
introduced will not exceed 1%. This error can generaliy be
ignored. When the rise or falltime of the test device is less
than ten times as long as the combined risetimes of the
testing system, the actual risetime of the device must be
determined. This is found from the risetime of each
component making up the system. The total risetime
equals the square root of the sum of the squares of the
individual risetimes. R;= Y (R1)” + (R1) +... .Conversely,
the risetime of the device under test can be found, from the
same relationship, if the actual risetimes in the system are
known.
The physical and electrical characteristics of the pulse
transmitting cable determine the characteristic im-
pedance, velocity of propagation, and amount of signal
loss. Signal loss, is related to the frequency; therefore, a
few feetof cable can attenuate high frequency information
in a fast-rise pulse. Itis important therefore, to keep these
cables as short as practical.
When signal comparison measurements or time
difference determinations are made, the two signals from
the test device should travel through coaxial cables with
identical loss and time delay characteristics.
If there is a dc voltage across the output load, the output
pulse amplitude will be compressed, or in some cases (if
the voltage exceeds +10 V), it may short the output. To
prevent this from occurring, the output must be coupled
through a dc blocking capacitor to the load. The time
constant of the coupling capacitor and load must be long
enough to maintain pulse flatness.
IMPEDANCE MATCHING
As a pulse travels down atransmission line, each time it
encounters a mismatch, or different impedance than that
of the transmission line, a reflection is generated and sent
back along the line to the source. The amplitude and
polarity of the reflections are determined by the amount of
®
the encountered impedance in relation to the
characteristic impedance of the cable. If the mismatch
impedance is higher than the line, the reflection will be of
the same polarity as the applied signal. If it is lower, the
reflection will be of opposite polarity.
If the reflected signal returns before the pulse is ended,
it adds to or subtracts from the amplitude of the pulse. This
distorts the pulse shape and amplitude. If the FG 503 is
driving a high impedance such as the 1 MQ input im-
pedance (paralleled by a stated capacitance) of the
vertical input to an oscilloscope, connect the transmission
line to a 50 Q attenuator, 50 Q termination, and then the
oscilloscope input. The attenuator isolates the input
capacitance of the device, and the FG 503 is properly
terminated.
A simple resistive impedance-matching network, that
provides minimum attenuation, is illustrated in Fig. 1-2. To
match impedance with the illustrated network, the follow-
ing conditions must exist:
(В, + 72) В;
RZ: +R: TZ: + Ry must equal 2,
and
ZR;
В, 7, +В, must equal Z;.
Therefore:
RR: = ZiZ:; and RıZı = R:(Z: a Z1)
or
В, = Yy ZalZ: — Zi)
and
For example, to match a 50 (0 system to a 125 Q system,
Z: equals 50 © and Z; equals 125 О.
a
Operating Instructions —FG 503
Therefore:
В, = \/ 125(125 — 50) = 96.8 ohms
and
125
R: = 50 = 21:k4.50hms.
125-50
à 2 As 2 z
— (O + ANNO) -4———
(Low) y y (High)
Ry
TA
2,<2,
Fig. 1-2. Impedance matching network that provides minimum
attenuation.
When constructing such a device, the environment
surrounding the components should be designed to
provide a transition between the impedances. The
characteristic impedance of a coaxial device is deter-
mined by the ratio between the outside diameter of the
inner conductor to the inside diameter of the outer
conductor,
138 D
loge —
Ve d
D is the inside diameter of the outer conductor, d is the
diameter of the inner conductor, and € is the dielectric
constant (1 in air).
The network shown in Fig. 1-2 provides minimum
attenuation for a purely resistive impedance-matching
device. The attenuation as seen from one end does not
equal that seen from the other end. À signal (E:) applied
from the lower impedance source encounters a voltage
attenuation (A:) that is greater than 1 and less than 2, as
follows:
1-3
Operating Instructions—FG 503
A signal (E:) applied from the higher impedance source
(£2) encounters a greater voltage attenuation (A:) that is
greater than 1 and less than 2(21/21):
E: Rı A1
Ar = — = — + — +1.
Е, Ra Li
In the example of matching 50 Q to 125 N,
96.8
A = —
125
+ 1 = 1.77
and
96.8 96.8
А; === + — +1 = 4.43.
64.6 50
The illustrated network can be modified, to provide
different attenuation ratios, by adding another resistor
(less than R;) between Z, and the junction of R; and R..
BASIC OPERATION
FREE-RUNNING OUTPUT
Set the AMPLITUDE control fully clockwise. Notice the
two identical sets of waveforms near the FUNCTION
selector on the front panel. The three waveforms in the
lightly shaded area allow use of the OFFSET control; the
other three do not. Select the desired waveform with or
without offset. See Fig. 1-3. Select the desired frequency
with the MULTIPLIER and FREQUENCY Hz dials. The
output frequency is calibrated when the FREQUENCY
VERNIER control isin the full clockwise position. Connect
the load to the OUTPUT connector and adjust the
AMPLITUDE control for the desired output amplitude.
A NI NI NI
>» NNT Ss р
LA A
Fig. 1-3. Output waveforms available from the FG 503.
When using the offset feature select the waveform
desired in the light shaded area. Now adjust the OFFSET
control to position the dc level (baseline) of the output
waveform above or below 0 V as desired.
VOLTAGE-CONTROLLED FREQUENCY
OUTPUT
The output frequency of the FG 503 can be sweptovera
freguency range of 10001 depending on the
(VCF)
1-4
MULTIPLIER setting, by applying a 0 V to 10 V signal to
the VCF IN connector. See Fig. 1-4 for maximum VCF
range for each MULTIPLIER setting.
10* 4 3 kHz 3 MHz
O in. 300 Hz 300 kHz
Es 30 Hz 30 kHz
w 10 -
©“
ui 3 Hz 3 kHz
O +10? -
z 10
x J 1 Hz 300 Hz
© 10' —]—s——i——l
w
= 1 - 1 Hz 30 Hz
5
= *<0.01 Hz “>5 MHz
= C-
10° 10! 4 10' 10% 10 40* 10° 10° 10’
FREQUENCY Hz
“Customized sweep at least 1000:1 within this range
Fig. 1-4. Graph showing range of frequencies for each MUL-
TIPLIER setting that can be swept with a 0 to 10 V signal applied to
the VCF input.
The polarity of the VCF input signal determines the
direction the output frequency is swept from the frequen-
cv set by the MULTIPLIER FREQUENCY Hz and VER-
®
NIER controls. A positive-going voltage raises the fre-
quency, while a negative-going voltage lowers the fre-
quency. A voltage that varies symmetrically about 0 V
sweeps the output frequency symmetrically about the
center frequency determined by the frequency controls.
See Fig. 1-5.
Since the VCF input amplitude versus frequency is a
linear relationship, the frequency output range may be
determined from the VCF input amplitude. Use a fixed dc
voltage and frequency counter or other comparison
method, to accurately determine the output frequency and
VCF voltage relationship. Refer to the test under the
heading Response Analysis for a typical application using
the VCF feature.
CUSTOM TIMING CAPACITOR SELECTION
This feature allows the user to custom select a swept
frequency range. For example, assume a swept frequency
Operating Instructions—FG 503
range of 20 Hz to 20 kHz is desired. Fig. 1-4 shows thatno
fixed multiplier setting includes the desired limits. The
value of the capacitor that must be installed is determined
by the following formula:
300
Con — -
Fax
where Ceu is in uF, and Fmax, in Hz, is the maximum
frequency required. Apply the formula to the example;
300
Con — —— = 0.015 ЦР.
20 x 10°
The capacitor selected must be a low leakage non-
polarized type within the range of 100 pF to 100 uF and
must have at least a 10 V rating. Ceramic and mylar
capacitors work well in this application.
SWEPT FREQUENCY
RANGE
+5V
+5
VCF IN | VCFIN © A
—10 —5
|
"EN с ERE
| | il
Fig. 1-5. Swept frequency range with 10 V signals applied to VCF IN Connector.
@ 1-5
Operating Instructions—FG 503
Remove the left side cover of the FG 503. Refer to
Fig. 1-6 for capacitor location. Solder the capacitor to the
test points located on the left rear side of the circuit board
as shown in Fig. 1-6. Finally, set the MULTIPLIER control
to the C position, and apply the correct voltage to the VCF
IN connector. Set the FREQUENCY Hz and FREQ VER-
NIER dials for the desired swept frequency range.
Custom Timing
Capacitor
Fig. 1-6. Custom timing capacitor location.
The calibration marks on the FREQUENCY Hz dial are
not appropriate for use directly in determining frequency
in the custom range position. It is possible however, to
custom calibrate the dial, since the linearity of the
FREQUENCY Hz dial calbration is not changed in the
custom position.
TYPICAL VCF APPLICATION
The FG 503 is particularly suited for determining
response characteristics of circuits or systems. This
application utilizes the VCF input of the FG 503 to sweep
the generator over a range of frequencies. By applying the
desired waveform from the FG 503 to a device under test,
and sweeping the waveform frequency over a selected
range, various response characteristics can be observed
on a monitoring oscilloscope.
The following procedure describes a technique for
determining response characteristics of any frequency
sensitive device that operates within the frequency range
of the FG 503, Refer to the Voltage-Controlled Frequency
(VCF) Output discussion for additional information.
1. Connect the equipment as shown in Fig. 1-7.
2. Set the MULTIPLIER selector and FREQUENCY Hz
dial for the desired upper or lower frequency limit
FG 503
WAVEFORM
GEN
VCF
OSCILLOSCOPE
0 / IN "ФИ O
DEVICE
UNDER
TEST
Fig. 1-7. Analyzing circuit or system response.
REV. B, OCT. 1974
(depending on the direction you may wish to sweep). See
Fig. 1-4 for VCF ranges and MULTIPLIER settings.
3. Apply the desired waveform to the VCF IN connec-
tor.
4. Adjust the amplitude of the VCF input waveform for
the desired output frequency range.
Operating Instructions—FG 503
5. Observe the response characteristics on the
monitoring oscilloscope.
The frequency at which a displayed response
characteristic occurs can be determined by first removing
the VCF input waveform, then manually adjusting the
FREQUENCY Hz dial to again obtain the particular
characteristic observed in the swept display. Then read
the frequency on the FREQUENCY Hz dial.
ELECTRICAL CHARACTERISTICS
PERFORMANCE CONDITIONS
The electrical characteristics are valid only if the
FG 503 is calibrated at an ambient temperature between
+20°C and +30°C, and operated between 0°C and
+50* C, unless otherwise noted.
WAVEFORMS:
Sine, square, and triangle.
FREQUENCY RANGE:
Calibrated Range: 1 Hz to 3 MHz.
Usable Range: <0.01 Hz to =5 MHz.
Custom Range: Switch selectable on front panel.
Frequency range determined by user-installed timing
capacitor.
FREQUENCY RESOLUTION:
1 part in 10° of full scale setting using FREQUENCY
VERNIER control.
FREQUENCY STABILITY:
<0.1% of full scale for 1 hour after a 30 minute warmup,
<0.5% of full scale for 24 hours. Dial must be on
calibrated portion and ambient temperature mustbe 25°C
=52C.
DIAL ACCURACY:
Within =5% of full scale from 1 Hz to 3 MHz.
DIAL RANGE:
1 to 30 calibrated, 0.1 to 1 uncalibrated.
®
OUTPUT AMPLITUDE:
>20 V p-p open circuit, >10 V p-p into a 50 Q load
referenced at 10 kHz and excluding offset.
Variable Amplitude Range: =20:1.
AMPLITUDE FLATNESS:
Within 2 db referenced at 10 kHz.
OFFSET RANGE:
At least +5 V open circuit, ==2.5 V into a 50 Q load.
Peak signal plus offset atleast +10 V open circuit, +5 V
into 50 Q load.
SINE WAVE DISTORTION:
<0.5% from 1 Hz to 30 kHz,
<1.0% from >30 kHz to 300 kHz,
<2.5% from >300 kHz to 3 MHz. Valid for calibrated
frequencies only.
TRIANGLE SYMMETRY:
Within 1% from 1Hz to 100 kHz; within 5% from
100 kHz to 3.0 MHz using 10° MULTIPLIER setting. Dial
must be on calibrated portion, and ambient temperature
must be 25°C =5°C.
TRIANGLE LINEARITY:
Within 1% from 1 Hz to 100 kHz.
Within 5% from 100 kHz to 3 MHz.
SQUAREWAVE:
Risetime: <60 ns.
Aberrations: <3% p-p at full amplitude into a50 A load.
1-7
Operating Instructions—FG 503
VOLTAGE CONTROLLED FREQUENCY INPUT:
Range: A 10 V signal shifts frequency >1000:1 where
freq (max) is =<30X MULTIPLIER setting and freq (min) is
>0.03X MULTIPLIER setting.
Slew Rate: =0.5 V/us.
TRIGGER OUTPUT:
=2.5 V into 600 Q. Leading edge coincides with positive
peak of sine and triangle waveforms, and preceeds leading
edge of square wave nominally by 50 ns.
POWER CONSUMPTION:
=15 watts.
©)
INTRODUCTION
The triangle waveform is the basic waveform in the
FG 503. The sine wave is derived from the triangle
waveform using a five-step approximation. The square
waveform is generated by the triangle generator control
circuitry.
Refer to the simplified block diagram, and the circuit
diagrams in the pullout pages of this manual along with
the following discussion, for a complete understanding of
the FG 503 operation.
TRIANGLE GENERATOR
Operational amplifier U121, with Q121, form a positive
constant-current source. Q145 and Q141 form a negative
constant-current source. These constant current sources
supply the current (either positive or negative) to charge
the timing capacitor, generating the triangle waveform.
Assume that the junction of CR127 and CR135 is
positive (about —9 V) with respect to ground. CR127 is off
and CR135 is conducting. CR140 is off, and the timing
capacitor is charging from the positive current source
through CR130. Q261 is off. Current to hold the junction of
CR127 and CR135 positive is supplied via VR131, con-
nected to the —20 V supply.
The ramp, moving in the positive direction, appears in
the same polarity at the + inputs of U235. This is
accomplished through the action of source follower
Q201A, with its constant current source, Q201B.Q211 and
Q221, complementary emitter followers, drive the ac
compensated attenuator R226, R227, and C226.
The voltage at pin 2 of U235A rests at about 1.6 V above
ground. The voltage at pin 6 of U235B is about the same
below ground. Under these conditions, the output of
U235A and U235B (pin 10) rests so that the inputs of
U241C are at the low TTL level. When the ramp voltage at
pins 3 and 5 of U235A and U235B respectively reaches
about 1.6 V, the output of these comparators start to go
positive. When they reach the high TTL level, pin 10 of
U241C goes low, causing the output of U241D to go high.
This high level couples through VR261 to the base of
Q261, turning Q261 on.
REV. B, OCT. 1974
Section 2—FG 503
THEORY
OF OPERATION
The lowered voltage (about —-9 М) а! the junction of
CR127 and CR135 turns CR140 on,and CR135and CR130
off. This action disconnects the positive current source
from the timing capacitor and connects the negative
current source through CR140, causing the ramp to go in
the negative direction. The ramp goes negative until the
voltage at pins 3 and 5 of U235A and B, respectively, drops
to about —1.6 V. At this time the outputs of U235A and
U235B go low causing the output of U241C to go high.
This action causes the output of U241D to go negative,
turning Q261 off, and the cycle repeats.
R123 balances the current between the positive and
negative constant current sources so that the charge and
discharge times for the capacitor are equal.
The frequency of the triangle waveform is controlled by
two factors: (1) the value of the timing capacitor, and
(2) the amount of current available to charge it.
When the FREQUENCY Hz dial is turned in the ccw
direction, the voltage at pin 5 of U101A goes positive. This
causes pin 7 of U101A and pin 2 of U101B to go positive.
The voltage at pin 2 of U101B is also controlled by an
external voltage applied to the front panel VCF IN
connector. Under the above conditions, pin 1 of U101B
goes negative, causing pin 6 of U121 to go negative. This
increases the current available to charge the ramp
generating capacitor. The negative current is also in-
creased through the action of emitter follower Q141.
The waveform at pin 130fU241D (about 15 V above the
base of Q261) drives gates U241A and B, which in turn
provide in-phase trigger signals to the front panel and the
rear interface connector.
The square wave is taken from the collector of 0255.
SINE SHAPER
This circuit, by means of a five-step approximation
method, develops a sine wave from the applied triangle
wave. The circuit is composed of 0320, Q340, and
associated components. Although they operate in op-
posite polarity, each half of the sine shaper functions the
2-1
Theory Of Operation—FG 503
AA R224 N NJ _ 7
> ANF >
/V
AY — 8224 —
ya — ——^ЛЛ\Л, —
Z varies with
triangle voltage — K
Vv
A. B.
Fig. 2-1. Simplified sine shaper circuits. Part A shows equivalent circuit. Part B shows a three step approximation (actual circuit
is a five step approximation). See text.
same, so only the upper half (Q320) is described. See OUTPUT AMPLIFIER
Fig. 2-1 for a simplified version of the sine shaper. names Ш?
This circuit operates as an inverting operational
amplifier. R; is R371 and R, is R369. The base of Q371 is the
negative input and the base of Q380 is the positive input.
Transistor Q320, controlled by the setting of — sine The overall gain is about four. The selected waveform is
adjustment R311, establishes a fixed current through the applied to the base of Q355. This transistor and Q360
resistive divider chain attached to its emitter. This fixes a operate as cascaded emitter followers. The waveform is
different voltage at the cathode of each diode connected taken from the emitter of Q360, through the AMPLITUDE
to the divider chain. When sine-wave operation is selected, control to the base of Q371. Q380 and Q371 operate as an
a triangle wave is applied through R224, which forms part emitter-coupled amplifier with Q376 serving as a constant
of a voltage divider, the other half of which is the diodes current source. R375, in the emitter circuitry, adjusts for
and the Q320 resistor chain. The output waveform is taken dc unbalance in the output amplifier. The base of Q380 is
from the junction of R224 and the Q320 resistor chain. connected to the OFFSET control when waveform offset
capability is required (S380-5 closed). This control also
effectively adjusts dc levels in the output amplifier. The in-
phase signal is fed from the collector of Q380 to the base of
As the applied triangle waveform rises to the voltage at Q405. The out-of-phase signal is fed from the collector of
the cathode of CR327, the diode conducts, changing the Q371 to the base of inverter Q400. The waveform at the
divider ratio and thus the slope of the output waveform. collectors of Q420 and Q405 are in phase. Their collectors
The slope is changed each time another diode turns on (as drive complementary emitter-follower amplifiers Q425
a result of the triangle waveform reaching the turn-on and Q410. Output and feedback are taken from their
point of the diode), resulting in a waveform of approximate common emitters. C369 compensates R for higher fre-
sinusoidal shape. As the input falls, the diodes turn off in quency components.
succession, until the input waveform reaches zero volts.
The changes in slope during this operation would seem to POWER SUPPLIES
be pronounced. however, the nonlinear characteristics of
the diodes tends to round off the changes. The resultis a VR517 sets the voltage at pin 3 (+ input of an
E + а = E "я + WE a — "O я Г 3 == ди 4 gm но ER - — e Ta, „= & МЕ, + т" 4 = = E
cioso arproximation of a pure sing wave at tha output. oreraticaa: ampliar) O US v5:2 Раз а gain O!
2-2 ZEV. 8, OCT. 1974
approximately three. The output at pin 6, therefore, is
about 20 V. Emitter follower Q526 drives the base of the
series pass transistor. Should the +20 V load increase, pin
2 of U512 (through R522 and R520) goes negative. This
causes pin 6 to go positive, increasing current flow and
restoring the +20 V to its previous level. Should the
current drawn increase, so the voltage across R523 is
sufficient to turn 0523 on, current limiting occurs. Q526
reduces conduction, reducing the current through the
series pass transistor to a safe level. CR536 protects the
+20 V supply, if it shorts to the minus supply.
U566 is an operational amplifier with a gain of about
one. The reference voltage is the +20 V applied at pin 2.
The output, at pin 6 (—20 V), drives emitter follower Q569.
Q569 drives the series pass transistor located in the power
module. Current limiting takes place in conjunction with
Q566 and R567. Feedback occurs through R564. The
Theory Of Operation—FG 503
action of this circuit is similar to the +20 V regulator.
CR539 protects this supply, should ashort to +20 V occur.
The —17 Vis referenced to the +20 V. U628, with again
of about one, controls Q628, the series pass transistor for
this supply. Feedback occurs at pin 2 of U628. Current
limiting in the +20 V supply protects this circuit.
The —17 V supply is referenced to +17 V at pin 2 of
U640. The gain of U640 is about one. Q640 serves as the
series pass transistor for this supply. Feedback occurs
through R633. Current limit for this supply is the +20 V
supply.
The regulatory action of the +17 Vand —17 V supplies
is similar to that in the 20 V supplies.
2-3
CALIBRATION PROCEDURE
SERVICES AVAILABLE
Tektronix, Inc. provides complete instrument repair
and adjustment at local Field Service Centers and the
Factory Service Center. Contact your local Tektronix Field
Office or Representative for further information.
MAINTENANCE
Refer to the TM 500 series power module manual for
complete maintenance information.
TEST EQUIPMENT
For complete calibration, the following equipment is
recommended:
Digital voltmeter with ranges greater than —20 V DC,
Tektronix DM 501 or equivalent.
At least a 10 MHz oscilloscope system. Tektronix 5403
main frame, 5A45 vertical plug-in, 5840 time base, or
equivalent.
Distortion analyzer or 10 kHz notch filter constructed
as shown in Fig. 3-1.
One 50 QQ termination, bnc connectors, Tektronix Part
Number 011-0049-01.
One 50 Q, 42-inch coaxial cable, bnc connectors,
Tektronix Part Number 012-0057-01 or equivalent.
1.62 k 1.62 k
I= uF 50 ©
coaxial
— output
to
oscilloscope
50 2 o—
coaxial input
from FG 502,
01 uF 01 uF
—
All fixed
components
have a 1%
tolerance
Tune for best
rejection
Fig. 3-1. 10 kHz notch filter,
Fa
A,
GENERAL
The FG 503 can be calibrated either fully installed in a
TM 500 series power module, or connected to the power
module via a flexible plug-in extender (Tektronix Part No.
067-0645-01). Remove the power module cabinet to make
adjustments to the FG 503 inside the power module. All
adjustments are located on the right side of the circuit
board. Make ail adjustments at an ambient temperature
between 20°C and 30°C (+68°F to —86°F).
1. ADJUST +20 V SUPPLY
Connect the positive lead of the voltmeter
set to read +20 V to the +20 V TP and the
negative lead to the Gnd TP. Adjust R520,
+20 V, for a reading of 20 V =1%.
2. CHECK POWER SUPPLY VOLTAGES
Connect the negative lead of the voltmeter
set to read —20 V to the —20 V TP and the
positive lead to the Gnd TP. Check that the
reading is —20 V =1%. Move the negative lead
to the —17 TP and check that the reading is
17V =1%. Now measure the +17 V by
switching the negative lead to the Gnd TP and
the positive lead to the +17 V TP and check
that the reading is within +1% of 17 М.
3. ADJUST SYMMETRY
Connect the OUTPUT of the FG 503
through a 50 Q coaxial cable and a 50 Q
termination, in that order, to the vertical input
of the oscilloscope. Set the FG 503
AMPLITUDE control fully cw, the
MULTIPLIER control to 10°, the FREQ VER-
NIER control fully cw, the FUNCTION switch
to Ms in the darkly shaded area (no offset)
and the FREQUENCY Hz dial to 10. Set the
oscilloscope vertical sensitivity to 2 V/divand
the horizontal sweep rate to 10 us/div. Obtain
a triggered square wave display on the crt.
Adjust the FREQUENCY Hz dial so that only
one complete square wave is visible on the crt.
Adjust R123, Sym, for a symmetrical square
wave. Finally, while switching the sweep
triggering on the oscilloscope from positive
slope to negative slope, check that the vertical
transition of the square wave does not shift in
time. Readjust R123, Sym, if necessary to
achieve this result.
4. ADJUST LOW FREQUENCY TIMING
Set the oscillosco sweep speed to
1 ms/div. Set the FREQUENCY Hz dial full
cw and make certain the FREQ VERNIE
control is fully cw. Now adjust R118, X0.1 Cal,
for one complete square wave in ten horizon-
tal division on the crt.
5. ADJUST HIGH FREQUENCY TIMING
Set the FREQUENCY Hz dial to 30 and the
oscilloscope sweep speed to 10 us/div. Adjust
R101, X30 Cal, for three complete square
wave cycles in ten horizontal divisions.
Repeat step four and this step until proper
calibration is achieved.
CALIBRATION PROCEDURE
6. CHECK DIAL POSITIONING
Set the oscilloscope sweep rate at
0.1 ms/div. Adjust the FREQUENCY Hz dial
so that exactly one complete square wave is
displayed over ten horizontal divisions on the
crt. The FREQUENCY Hz dial should now
read 1. If not, loosen the two set screws on the
knob and adjust so the dial reads 1. Go back
and repeat steps four and five if adjustment of
the FREQUENCY Hz dial was necessary.
7. ADJUST 300 kHz TIMING
Set the MULTIPLIER to 10°, FREQUENCY
Hz dial to 30 and the oscilloscope sweep
speed to 1 us/div. Adjust C226, 300 kHz Tmg,
for a display of three complete cycles in ten
horizontal divisions.
8. ADJUST 3 MHz TIMING
Set the MULTIPLIER to 10°, and the os-
cilloscope sweep speed to 0.1 us/div. Adjust
C280, 3 MHz Tmg, for a display of three
complete cycles in ten horizontal divisions.
9. ADJUST SQUARE WAVE COMPEN-
SATION
Set the FREQUENCY Hz dial to 10
(1.0 MHz). Adjust C369, Sq Comp, for the
squarest front corner on the waveform. Check
that the risetime of the square wave is within
specification.
10. ADJUST SINE WAVE UPPER AND
LOWER LEVEL CONTROLS (DISTORTION)
Set the FUNCTION switch to fv
in the
shaded portion (no offset), MULTIPLIER to
10°, and FREQUENCY Hz to 10. Set the
oscilloscope sweep speed to 50 us/div.
Connect the distortion analyzerto the FG 503
output, or the notch filter (constructed as
shown in Fig. 3-1) to the 50 () terminated end
of a coaxial cable from the FG 503. Connect
the output of the notch filter to the os-
cilloscope vertical input. Set the oscilloscope
vertical sensitivity for a four-division display
and adjust the FREQUENCY Hz dial for
minimum display amplitude. Using a four-
division display on the oscilloscope, alter-
nately adjust R311, + Sine, R317, — Sine, and
the FREQ VERNIER control for minimum
display amplitude. If the distortion analyzer is
used, adjust for minimum distortion. To arrive
at the percent distortion, divide the amplitude
of the display, using the notch filter, by the
amplitude of the sine wave without the notch
filter, and multiply by 100.
11. ADJUST OUTPUT DC BALANCE
Establish
the oscilloscope ground
reference by grounding the vertical input and
position the trace to the graticule center.
Connect the output of the FG 503 to the
oscilloscope vertical input. Set the vertical
deflection at 0.1 V/div. Turn the AMPLITUDE
control fully ccw. Now adjust R375, Bal, so
that the waveform is centered around the
ground reference on the oscilloscope.
Ч
R116
X0.1 Cal
a R123
Sym C226
Step 3 300 kHz Tmg
| Step 7
R101
Step 5 e Step 2
-17 \ ТР
Step 2
C369
Comp ror
tep 9 a
y Step 11
R317
-Sine
Step 10
R311
+Sine
Step 10
C280
3 MHz Tmg
Step 8
Gnd TP
es — o— — — |
o FO С
Re my ni pp” mi” lh
+20 V TP
vo Step 1
-20 V TP
Step 2
R520
( + +20 V
Step 1
BACK SIDE OF BOARD SHOWN,
TEST POINTS WILL BE FOUND ON COMPONENT
SIDE OF BOARD,
AMPLITUDE Control
Adjusts amplitude of out-
put waveform.
OFFSET Control
Adjust for output wave-
form DC offset when
FUNCTION switch is in
unshaded portion.
sd.
VCF IN Connector Pg 9
Applied external voltage ——— ft € `
changes output waveform LA
frequency.
HOW = 180071
TER TROMIX +
LATCH
FG 503
CONTROLS AND CONNECTORS
A
У FREQUENCY Hz
POWER On Pilot Light
——— llluminated when power is
applied to unit.
FREQUENCY Hz Dial
Multiply dial reading by
MULTIPLIER setting for
frequency out.
MULTIPLIER Switch
Sets basic frequency
range. C is custom posi-
tion.
FREQ VERNIER Control
Allows fine adjustment of
output frequency.
FUNCTION Switch
Selects oulput waveform.
Shaded portion is without
offset.
BNC connector for
INTO 8000 waveform output.
пом або
FG 503 FUNCT\ON GENERATOR
Pull to remove plug-in.
TRIG OUT Connector
Square-wave output for
applications requiring an
external trigger.
PARTS LOCATION GRID
FG 503
*C227
oT
TED oreo
In ( 1018 \ cory
/
A 6284 - ©
e © MIR o [o] fa] НЯ ~ 7
полы + “ -
© _ SBT BE oro OO
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{=== ©
СУРЕН E
> oC) DS
| 22 yO 08€S
res MS
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Г sovo
¡Tec PEDO
osED —
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фу чума
SO)
a
077 H 7 Г
JA
sero
Fe
(3)
O
\
PQ mo | DLE E
LEAN
C275
wsEezZn aseen
ERP
Ae dl
og ITF oC) (RIRTHIRIN INN о O 6429
viven given x m
olvegn Glven ! ~
|°)|°!
i 1j
fé] []
C270
C120
I о-
£09 A ©
R629
oN
o
OS
|! i
ile IM ile]
g29n
|jo]fo!jo
ETE HE
Q 9ESHD
LOCATED ON BACK BOARD
C633
BACK SIDE OF BOARD
DASHED COMPONENTS LOCATED ON
*R252
*R253
*See Parts List for
serial number ranges.
CKT
NO
C120
C201
C226
C227
C230
C231
C246
C261
C270
C271
C273
C275
C276
C277
C278
C279
C280
C313
C315
C369
C380
C406
C420
C425
C536
C539
C625
C633
CR127
CR130
CR135
CR140
CR313
CR315
CR321
CR323
CR324
CR325
CR327
CR341
CR343
CR344
CR345
CR347
CR410
CR420
CR531
CR533
CR536
CR539
CR633
CR634
GRID CKT
LOC NO
А2 0121
14 Q141
G2 00145
El 4201
F2 Q211
E2 Q221
Di Q252
G1 Q255
B2 Q261
C3 10320
D4 9340
F5 Q355
F5 Q360
ES Q371
ES Q376
G4 Q380
G5 Q400
F2 Q405
E2 Q410
La Q420
Ka Q425
M6
K5 Q523
J6 Q526
Q566
H2 Q569
G2 Q628
D6 Q640
ES
12 R101
13 R103
12 R107
13 R109
F2 R111
E2 R113
G4 R114
G4 R115
G3 R116
G3 R118
H3 R120
G4 R121
G4 R123
G3 R125
H3 R127
H3 R131
KS R133
K5 R140
B4 R145
B4 R147
C6 R201
C4 R211
D5 R214
D5 R221
GRID CKT
LOC NO
Ji R223
11 R224
J1 R225
13 R226
H2 R227
H2 R229
13 R230
H2 R231
H1 R232
F3 R235
F3 R237
L3 R239
L3 R241
J5 R243
K4 R244
K5 R246
IS R250
L5 R251
L6 R255
J5 R256
JS В258
R260
C5 R261
A5 R310
C5 R3NM
A4 R313
E6 R315
E5 R317
R318
R320
K3 R321
J3 R323
B3 R324
L2 R325
K2 R327
K2 R329
L2 R331
L2 R333
L2 R340
K2 R341
F1 R343
J2 R344
J3 R345
J2 R347
и R349
12 R355
12 R357
12 R359
J2 R360
J2 R361
14 R364
H2 R365
H2 R367
H2 R369
GRID CKT
LOC NO
G2 RIN
H4 R375
H4 R376
G2 R377
F2 R379
G2 R380
F2 R381
El R382
D2 R384
F1 R385
E2 R386
F2 R389
D1 R400
C2 R405
D3 R406
C2 R410
14 R412
H3 R419
H2 R420
G2 R425
G1 R427
H2 R501
H1 R510
F2 R511
F2 R512
F2 R517
E3 —R519
g2 R520
g3 R522
ES R523
G4 R525
G3 R526
G3 R527
H3 R528
H4 R530
G4 R560
G4 R561
на R563
E3 R564
G4 R566
G3 R567
G3 R569
H3 R600
Ha R603
нд R625
кз R626
кз R629
K3 R631
L3 R633
L3 R640
L3
M4 RT105
L4
La S270
S380
GRID CKT
LOC NO
U101
U121
U235A
E235B
U241
U512
U566
U628
U640
VR131
VR235
VR239
VR255
VR261
VR517
VR600
VR603
REV C.
GRID
LOC
K2
K2
E1
E2
D2
B6
B4
D6
D5
12
F1
13
G1
DS
C5
OCT 1975
FG 503
REAR CONNECTOR PIN ASSIGNMENTS
Trigger Output Common
Trigger Output
VCF In Common
VCF In
25 VAC Winding
*+33.5 V Filtered DC
"Collector lead of PNP Series-Pass Transistor
Transformer Shield
“33.5 V Common
33.5 V Filtered DC
* Collector lead of NPN Series-Pass Transistor
Not Used
17.5 VAC Winding
11.5 V Common
+11.5 V Common
+11.5 V Filtered DC
25 VAC Winding
TABLE 2-1
B A
28 28
27 27
26 Sm 26
со ater stot го
24 24
oI En ….
22 22
21 21
20 20
19 19
18 18
17 17
16 16
15 15
14 14
13 13
12 12
11 11
10 10
9 TM 500 9
8 barrier 8
7 slot 7
6 E 6
5 5
4 4
3 3
2 2
1 1
B A
Rear-view of
plug-in
Output
Output Common
25 VAC Winding
+33.5 VFiltered DC
Base lead of PNP Series-Pass Transistor
Emitter lead of PNP Series-Pass Transistor
33.5 VCommon
—33.5 VFiltered DC
Emitter lead of NPN Series-Pass Transistor
Base lead of NPN Series-Pass Transistor
17.5 VAC Winding
11.5 Y Common
+11.5 V Common
11.5 V Filtered DC
25 VAC Winding
Assignments listed for pins 1A—13A and 1B—13B are available in all power modules; however only those pins marked with an asterisk (*)
are used by the FG 503.
| DIAL
FREQUENC VOLTAGE
a № | FOLLOWER +17V
VIOLA
FREQUENCY + CURRENT
SUMMING CURREI
AMPLIFIER
VIOIB QIZIA,B
CONTROL
—
IN
Ÿ
CURRENT FET BUFFER] ,,
>| SWITCH >| QIAB | FUNCTION SWITCH | AMPLITUDE] | OUTEUT
CRI27 CRI30 Q211
CRI35 CRI40 Q221 Q355 Q400
1 |Q360 @405 | 5
637) @+0
MULTIPLIER SWITCH ©376 Q420
AND 0380 9425
TIMING CAPACITORS N -
+5V Y
= SUPPLY —— + - CURRENT
VROOO SOURCE
+20V REF Ql4|
SUPPLY 145 A
Q523 Q526 > 420V QUSA,B
usi2 [
a
=|+17V SUPPYL NN HYSTERESIS SINE
- > R
Q028 Q640 i Q255 Q26! Ш Зло и
——mUL2BUCAON = 17V 0235 A.B Q340
+20V SUPPLY Y
G566 R565
у = ov
BUFFER TRIG
75V > u241A,B > O) Lu
» SUPPLY —- _5y
VR603
FG 503 REV. C, SEPT. 1974
Воск DIAGRAM
6 7
el C
T b 1
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| IK RI5 17V . 10
+ 4
>» MA rm . 105 OPTIONAL
alls | | ' | | | | TIMING CAPACITOR
| 12.16 В© ANA | | | ! | de | C270
1 L RI 100 9123 1 : T | o te
376 #2 хо. мене 290 $RI25 | ' |
CAL 1.33k > $ 1.33K | | ! | o |
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| | | o у
| | | >” с273
| | | 1uF
| , | La с275
! | | у Lai
| PO 7 a
+2CV | | 0.03uF C277
| $—oo qe
$ R2OI C279
2 100 , 51 278
QI21B eo} + 32
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o +20V c280
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R22)
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Sa CRI27 CRI30
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| |
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|
|
|
Bi R214
| 820
!
BEF FLOUE LIT FOé GAME ый
ELLIS Mai IF AL a ¿MEE
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WITS ELJE О ак: AAA » TO SINE
R224 — DRIVE
523
i
| AAA > / TO FUNCTION
P225 SWITCH
549
AM e >f11 TO FUNCTION
R25! SWITCH
976 R250
+
1.78K ¿ae 20V
| SOI R232
+ Hk
261
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U?41B U2HA |
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4C $410 C246,
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3 kis 3 11 K 10 ”
6.2 ov Aden
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13 1 RIG
12 a A
——o——:í.] | === == | ==
FG 503 REV C, SEPT. 1975 Generator Loop D 326 +
MAA
YY Y
LA
Rose
OFFSET] $ o со
R385
№ | |
- - = = = Г |
|
RISE |
2 T6K |
|
| -20V |
|
|
+20V |
+20V N
Зи |
7k
RI20 |
I 100
|
|
317 @ -SINE Q320 |
R323 R324 R325 R327 |
44.2 75 100 75 р \
ma | WMTW Wer |
CRSI3 _c313 63.1
| T= „1 R324 |
I CR325 Kcraz7 |
CR323
y ) \
R313 |
432 ZXcR3el E R331 R333 |
- ~ SHAPER
qq <
|
FROM R224 > DRIVE | oo | ANA
| TI ws
E - oom !
| ! I \
N ! | |
FROM R225¢ | |
1 | 070 i
I 1 | 1 |
5 5 3 2 t
N Zicr341 R345 $ R349 | |e ~
| > — — = ——— —
432 (38 cR344 crag? {IK Ld 9 YI LIN
3 OC _ | [Ou
—- C315 R347 LI ¡e | |e De
+ CRAIS ol AA "VV AAA AA é 75 о а o — © N OFFSET
R341 R343 44 R345 © e! u
237 44.2 75 100 da
FUNCTION
R31) Q340 5380
& +SINE
!
i R340
R3J8 100
357k
-20v
~20V
FG 503 REN C, SEPT. (975
R412
30K
+4
MP TB:
|
425 |
|
-20V -20Y
R369
{ane
i
< R364
> 51 |
se |
—] |
+
SEE PARTS LIST FOR EARLIER
VALUES AND SERIAL NUMBER
$ R367 RANGES OF PARTS MARKED
75 WITH BLUE OUTLINE.
À
|
| |
= = ==ное == == —————— a == E > <= «сшанныыь —
Outeur AMPLIFIER © Teb/374
;
FM
oly =
SIE
3
a
MAINFRAME IZA
+33.5V 1128 RSIO ?
1.2 уд
REI R526
VRSIT 10 47 ze
o.2V 3 J
| R512 +N
2R519
| 2 f U512 Pa GA LOCATED IN MAINFRAME
A EE "2" — ль — —————————
mn НОО
a a „> 2
| 20V 2Rr520 “ov
2.5k RGOD
> > ОТК
7 FD | ROD oY
ok 523 > R523 In | ) 1 SV
< 1
MAINFRAME 9A i 5 Cees Re20 2
> < 7 $ Во 22uF 7.4K 7 ee
GROUND 98
| / CR536 3 у
7 «
EFF ON SOME/ > +17v
EARLY INSTA, Rl DS528 $ REZ25 cer
> 10K TS
| Г Ся
>R52 $— 1/0 > = |7V
| $ 528
10k LOCATEO
WA
mm. - = ir
A -
{ R5G4
ok R567
+20V 1.5
Q566 -
-5v
R530 77
1.5k
> -20V
CR5%I IDA
|
| CR533
2
569 ПА
UBCC 6 A Q LOCATED IN MAINFRAME
2 AG 8566
R563 В56!
! 5.11K 10 yin "e
MAINFRAME SA |
-33.5V 56 R5GO J J
1.2 SE: PARTS LIST EOR EARLIER
VALUES AND SERIAL NUMBER
RANGES OF PARTS MARKED
ee 20 WITH BLUE OUTLINE.
REV. C, SEPT, 1975
Power SuPpuies © Fée
FG 503
Section 3—FG 503
SERVICE
INFORMATION
SYMBOLS AND REFERENCE DESIGNATORS
Electrical components shown on the diagrams are in the following units unless noted otherwise:
Capacitors = Values one or greater are in picofarads (pF).
Values less than one are in microfarads (uF).
Resistors = Ohms (£2)
Symbols used on the diagrams are based on ANSI Y 32.2 — 1970.
Logic symbology is based on MIL-STD-806B in terms of positive logic. Logic symbols depict the logic function performed
and may differ from the manufacturer's data.
The following special symbols are used on the diagrams:
в External Screwdriver adjustment.
External control or connector.
Clockwise control rotation in direction of arrow.
— —
3 Refer to diagram number indicated in diamond,
Refer to waveform number indicated in hexagon.
a Connection soldered to circuit board.
- “as 54 Connection made to circuit board with interconnecting pin,
O Blue tint encloses components located on circuit board.
~~ P/O circuit board
FG 503
REPLACEABLE
ELECTRICAL PARTS
PARTS ORDERING INFORMATION
Replacement parts are available from or through your local Tektronix, Inc. Field Office
or representative.
Changes to Tektronix instruments are sometimes made to accommodate improved
components as they become available, and to give you the benefit of the latest circuit
improvements developed in our engineering department. It is therefore important, when
ordering parts, to include the following information in your order: Part number, instrument
type or number, serial number, and modification number if applicable.
If a part you have ordered has been replaced with a new or improved part, your local
Tektronix. Inc. Field Office or representative will contact you concerning any change in part
number.
Change information, if any. is located at the rear of this manual.
SPECIAL NOTES AND SYMBOLS
X000 Part first added at this serial number
00X Part removed after this serial number
ITEM NAME
In the Parts List, an Item Name is separated from the description by a colon (:).
Because of space limitations, an Item Name may sometimes appear as incomplete, For
further Item Name identification, the U.S. Federal Cataloging Handbook H6-1 can be
utilized where possible.
ABBREVIATIONS
ACTR ACTUATOR PLSTC PLASTIC
ASSY ASSEMBLY QTZ QUARTZ
CAP CAPACITOR RECP RECEPTACLE
CER CERAMIC RES RESISTOR
CKT CIRCUIT RF RADIO FREQUENCY
COMP — COMPOSITION SEL SELECTED
CONN CONNECTOR SEMICOND SEMICONDUCTOR
ELCTLT ELECTROLYTIC SENS SENSITIVE
ELEC ELECTRICAL VAR VARIABLE
INCAND INCANDESCENT ww WIREWOUND
LED LIGHT EMITTING DIODE XFMA TRANSFORMER
NONWIR — NON WIREWOUND XTAL CRYSTAL
REV. B CCT. 1974
3-2
Electrical Parts List—FG 503
MFR.CODE
01121
01295
02735
03508
04713
07910
12040
15801
18324
22229
24931
56289
71744
72982
73138
75042
80009
80031
81483
98291
3-3
CROSS INDEX MFR. CODE NUMBER TO MANUFACTURER
MANUFACTURER
Allen-Bradley Co.
Texas Instruments, Inc.,
Semi conductor Group
RCA Corp., Solid State Division
General Electric Co., Semi-Conductor
Products Dept.
Motorola, Inc., Semiconductor
Products Div.
Teledyne Semiconductor
National Semiconductor Corp.
Fenwal Electronics, Div. of Kidde Walter
and Co. a Inc.
Signetics Corp.
Solitron Devices, Inc., Diodes,
Integrated Circuits and CMOS
Specialty Connector Co., Inc.
Sprague Electric Co.
Chicago Miniature Lamp Works
Erie Technological Products, Inc.
Beckman Instruments, Inc., Helipot Div.
TRW Electronic Components, IRC Fixed
Resistors, Philadelphia Division
Tektronix, Inc.
Electra-Midland Corp., Mepco Div.,
A North American Phillips Co.
International Rectifier Corp.
Sealectro Corp.
ADDRESS
1201 2nd St. South
P. O. Box 5012
Route 202
Electronics Park
5005 E. McDowell Rd.
12515 Chadron Ave.
Commerce Drive
63 Fountain St.
811 E. Arques
6808 Balboa Ave.
3560 Madison Ave.
4433 Ravenswood Ave.
644 W. 12th St.
2500 Harbor Blvd.
401 N. Broad St.
P. 0. Box 500
22 Columbia Rd.
9220 Sunset Blvd.
225 Hoyt
CITY, STATE, ZIP
Milwaukee, WI 53204
Dallas, TX 75222
Somerville, NY 08876
Syracuse, NY 13201
Phoenix, AZ 85036
Hawthorne, CA 90250
Danbury, CT 06810
Framingham, MA 01701
Sunnyvale, CA 94086
San Diego, CA 92123
Indianapolis, IN 46227
North Adams, MA 01247
Chicago, IL 60640
Erie, PA 16512
Fullerton, CA 92634
Philadelphia, PA 19108
Beaverton, OR 97077
Morristown, NJ 07960
Los Angeles, CA 90069
Mamaroneck, NY 10544
REV. B OCT. 1974
Electrical Parts List—FG 503
Tektronix Serial/Model No. Mir
Ckt No. Part No. Eff Dscont Name & Description Code Mfr Part Number
Al 670-3302-00 CKT BOARD ASSY :MAIN 80009 670-3302-00
с120 283-0111-00 CAP. ,FXD,CER DI:0.1UF,20%,50V 72982 8131N075651104M
C201 283-0003-00 CAP. ,FXD,CER DI:0.01UF,+80-20%,150V 72982 855-547E103Z
C226 281-0205-00 CAP. ,VAR,PLSTC:5.5-65PF,100V 80031 cOLOGA/60E
C227 281-0627-00 xB020000 CAP. ,FXD,CER DI :1PF,+/-0.25PF,500V 72982 301-000C0GO0109C
C230 283-0003-00 BO10100 B019999 CAP. ,FXD,CER DI:0.0lUF,+80-20%,150V 72982 855-547E1032
C230 281-0540-00 B020000 CAP. ,FXD,CER DI:51PF,5%,500V 72982 301-000U2J05109
C231 283-0003-00 2010100 B019999 CAP. ,FXD,CER DI :0.01UF,+80-20%,150V 72982 855-547El03Z
C231 281-0540-00 3020000 CAP. ,FXD,CER DI:51PF,5%,500V 72982 301-000U270510J
C261, 283-0003-00 CAP. ,FXD,CER DI:0.01UF,+80-20%,150V 72982 855-547E103Z
с270
C271
с273
C275 295-0164-00 CAP. ,SET MTCHD:10UF,1UF,0.1UF,0.01UF, 80009 295-0164-00
950PF ,MTCHD 0.73%
C276
C277
c278 281-0629-00 CAP. ,FXD,CER DI:33PF,5%,600V 72982 308-000C0G0330G
C279 281-0540-00 CAP. ,FXD,CER DI:51PF,5%,500V 72982 301-000U2J0510J
c280 281-0205-00 CAP. ,VAR,PLSTC :5.5-65PF,100V 80031 CO10GA/60E
C313 290-0572-00 CAP. ,FXD,ELCTLT:0. 1UF, 20% ,50V 56289 196D104X0050HAL
C315 290-0572-00 CAP, ,FXD,ELCTLT:0.1UF, 20% ,50V 56289 196D104X0050EAL
C369 281-0202-00 CAP. ,VAR,PLSTC:1.5-5.5FF, 100V 80031 СО10ЕА-5Е
C380 283-0003-00 CAP. ,FXD,CER DI:0.0lUF,+80-204,150V 72982 855-547E1037
C405 281-0629-00 CAP. ,FXD,CER DI:33PF,5%,600V 72982 1308-000C0G03306G
C406 290-0517-00 CAP. ,FXD,ELCTLT:6. 8UF,20%,35V 56289 196D685X0035KA1
C415 283-0108-00 CAP. ,PXD,CER DI :220PF,10%,200V 56289 272C13
C420 281-0629-00 CAP. ,FXD,CER DI:33PF,5%,600V 72982 308-000C0G0330G
cá25 290-0517-00 CAP. ,FXD,ELCTLT:6.8UF,20%,35V 56289 196D685X0035KA1
C536 290-0559-00 CAP. ,FXD,ELCTLT : 22UF, 20% ,35V 56289 196D226X0035MA1
C539 290-0559-00 CAP. ,FXD,ELCTLT : 22UF, 20% ,35V 56289 196D226X0035MA1
C625 290-0559-00 CAP. ,FXD,ELCTLT:22UF , 20% , 35V 56289 196D226X0035MA1
c633 283-0003-00 CAP. ,FXD,CER DI:0.01UF,+80-20%,150V 72982 855-547E103Z
CR127 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
CR130 152-0141-02 SEMICOND DEVICE :SILICON,30V,150MA 07910 1N4152
CR135 152-0141-02 SEMICOND DEVICE:SILICON,30V,150MA 07910 1N4152
CR140 152-0141-02 SEMICOND DEVICE:SILICON,30V,150MA 07910 1N4152
CR313 152-0141-02 SEMICOND DEVICE :SILICON, 30V,150MA 07910 1N4152
CR315 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
CR321 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 184152
CR323 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
CR324 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
CR325 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
CR327 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
CR341 152-0141-02 SEMICOND DEVICE :SILICON, 30V,150MA 07910 1N4152
CR343 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
CR344 152-0141-02 SEMICOND DEVICE :SILICON,30V,150MA 07910 1N4152
CR345 152-0141-02 SEMICOND DEVICE :SILICON,30V,150MA 07910 1N4152
CR347 152-0141-02 SEMICOND DEVICE :SILICON, 30V,150MA 07910 1N4152
CR410 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
CR420 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
CR531 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
loptional Timing Capacitor.
Individual timing capacitors in this assembly must be ordered by the 9-digit
part number, letter suffix and tolerance printed on the timing capacitor to
be replaced. The letter suffix and tolerance should be the same for all the
timing capacitors in the assembly.
EXAMPLE : 285-xxxx-xx F-
REV. B OCT.1974
Electrical Parts List—FG 503
Tektronix Serial/Model No. Mfr
СК! Мо. Part No. Eff Dscont Name & Description Code Mfr Part Number
CR533 152-0141-02 SEMICOND DEVICE :SILICON, 30V, 150MA 07910 1N4152
CR536 152-0066-00 SEMICOND DEVICE :SILICON,400V,750MA 02735 37304
CR539 152-0066-00 SEMICOND DEVICE :SILICON,400V,750MA 02735 37304
CR633 152-0141-02 SEMICOND DEVICE :SILICON,30V,150MA 07910 1N4152
CR634 152-0141-02 SEMICOND DEVICE :SILICON,30V,150MA 07910 184152
DS528 150-0109-00 LAMP , INCAND : 18V, 26MA 71744 CM7220
J118 131-0955-00 CONNECTOR, RCPT, :BNC , FEMALE 24931 28JR200-1
J244 131-0955-00 CONNECTOR, RCPT, : BNC , FEMALE 24931 28JR200-1
J415 131-0255-00 JACK, TIP :FOR 0.08 DIA 98291 SKT-0404
Q121A,B 151-0261-00 TRANSISTOR:SILICON,PNP,DUAL 12040 NS7410
Q141 151-0190-00 TRANSISTOR: SILICON ,NPN 04713 2N3904
Q145A,B 151-0232-00 TRANSISTOR: SILICON ,NPN, DUAL 12040 NS7348
Q201A,B 151-1054-00 TRANSISTOR:SILICON,JFE,N-CHANNEL,DUAL 22229 FD1644
0211 151-0188-00 TRANSISTOR :SILICON,PNP 04713 2N3906
0221 151-0190-00 TRANSISTOR : SILICON , NPN 04713 2N3904
0252 151-0103-00 TRANSISTOR :SILICON,NPN 04713 2N2219A
0255 151-0190-00 TRANSISTOR: SILICON, NEN 04713 2N3904
Q261 151-0190-00 TRANSISTOR :SILICON,NPN 04713 2N3904
9320 151-0190-00 TRANSISTOR :SILICON,NPN 04713 2N3904
0340 151-0188-00 TRANSISTOR :SILICON,PNP 04713 2N3906
Q355 151-0190-00 TRANSISTOR :SILICON,NPN 04713 2N3904
©360 151-0188-00 TRANSISTOR:SILICON, PNP 04713 2N3906
Q371 151-0190-00 TRANSISTOR :SILICON, NPN 04713 2N3904
Q376 151-0190-00 TRANSISTOR :SILICON,NPN 04713 2N3904
0380 151-0190-00 TRANSISTOR : SILICON, NPN 04713 2N3904
2400 151-0188-00 TRANSISTOR:SILICON, PNP 04713 2N3906
0405 151-0188-00 TRANSISTOR:SILICON, PNP 04713 2N3906
9410 151-0439-00 TRANSISTOR:SILICON,NPN 03508 D40E7
0420 151-0190-00 TRANSISTOR :SILICON, NEN 04713 283904
9425 151-0440-00 TRANSISTOR:SILICON,PNP 80009 151-0440-00
Q523 151-0190-00 TRANSISTOR:SILICON,NPN 04713 2N3904
Q526 151-0190-00 TRANSISTOR : SILICON, NEN 04713 2N3904
Q566 151-0188-00 TRANSISTOR:SILICON,PNP 04713 2N3906
0569 151-0188-00 TRANSISTOR : SILICON, PNP 04713 2N3906
9628 151-0103-00 TRANSISTOR : SILICON ,NEN 04713 2N2219A
9640 151-0134-00 TRANSISTOR :SILICON,PNP 04713 2N2905A
R100 311-1770-00 RES. , VAR, WW:l10K OHM, 24 80009 311-1770-00
R101 311-1559-00 RES. ,VAR,NONWIR:10K OHM,20%,0.50W 73138 91A-10001M
R103 315-0512-00 RES. ,FXD,COMP:5.1K OHM, 5% , 0. 25W 01121 CB5125
R105 311-0169-00 RES. , VAR, NONWIR:100 OHM,20%,0.50W 01121 W7564B
R107 315-0100-00 RES. ,FXD,COMP:10 OHM,5%,0.25W 01121 CB1005
R109 321-0289-00 RES. ,FXD,FILM:10K OHM, 1%,0.125W 75042 CEATO-1002F
R111 315-0332-00 RES. ,FXD,COMP:3.3K OHM, 5% ,0. 25W 01121 CB3325
R113 321-0289-00 RES. ,FXD,FILM:10K OHM,1%,0.125W 75042 CEATO-1002F
R114 321-0288-00 RES. ,FXD,FILM:9.76K OHM,1%,0.125W 75042 CEATO-9761F
R115 321-0240-00 RES. ,FXD,FILM:3.09K OHM,1%,0.125W 75042 CEATO-3091F
R116 311-1567-00 RES. , VAR, NONWIR:100 OHM,20%,0.50W 73138 91A-100ROM
R118 321-0297-00 RES. ,FXD,FILM:12.1K OHM,1%,0.125W 75042 CEATO-1212F
R120 315-0102-00 RES. ,FXD,COMP:1K OHM,5%,0.25W 01121 cB1025
R121 322-0205-00 RES. ,FXD,FILM:1.33K OHM,1%,0.25W 75042 CEBTO-1331F
R123 311-1565-00 RES. , VAR, NONWIR:250 OHM,20%,0.50W 73138 91A250R0M
REV. B OCT. 1974
Electrical Parts List—FG 503
Tektronix Serial/Model No. Mfr
СК! Мо. Part No. Eff Dscont Name & Description Code Mfr Part Number
R125 322-0205-00 RES. ,FXD,FILM:1.33K OHM,1%,0.25W 75042 CEBTO-1331F
R127 315-0201-00 RES. ,FXD,COMP:200 OHM,5%,0.25W 01121 CB2015
R131 323-0176-00 RES. ,FXD,FILM:665 OHM,1%,0.50W 75042 CECTO-6650F
R133 315-0272-00 RES. ,FXD,COMP:2.7K OHM,5%,0.25W 01121 CB2725
R140 315-0201-00 RES. ,FXD,COMP:200 OEM,54,0.25W 01121 CB2015
R145 322-0209-00 RES. ,FXD,FILM:1.47K OHM,1%,0.25W 75042 CEBTO-1471F
R147 322-0209-00 RES. ,FXD,FILM:1.47K OHM,1%,0.25W 75042 CEBTO-1471F
R201 315-0101-00 RES. ,FXD,COMP:100 CHM,5%,0.25W 01121 CB1015
R211 315-0332-00 RES. ,FXD,COMP:3. 3K OHM,5%,0,25W 01121 CB3325
R214 315-0821-00 RES. ,FXD,COMP:820 OHM,54,0.25W 01121 CB&8215
R221 315-0511-00 RES. ,FXD,COMP:510 CHM,5%,0.25W 01121 CB5115
R223 301-0152=00 RES. ,FXD,COMP:1.5K OHM, 5%,0.50W 01121 EB1525
R224 321-0166-00 RES. ,FXD,FILM:523 OHM,1%,0.125W 75042 CEATO-5230F
R225 321-0168-00 RES. ,FXD,FILM:549 OHM,1%,0.125W 75042 CEATO-5490F
R226 321-0239-00 RES. ,FXD,FILM:3.01K OHM, l1%,0.125W 75042 CERTO-3011F
R227 321-0222-00 RES. ,FXD,FILM:2K OHM,1%,0.125W 75042 CEATO-2001F
R229 321-0293-00 RES. ,FXD,FILM:11K OHM,14 ,0.125W 75042 CEATO-1102F
R230 321-0194-00 RES. ,FXD,FILM:1.02K OHM,1%,0.125W 75042 CEATO=1021F
R231 321-0194-00 RES. ,FXD,FIIM:1.02K CHM,1%,0.125W 75042 CEATO-1021F
R232 321-0293-00 RES. ,FXD,FILM:11K OHM,1%,0,.125W 75042 CEATO-1102F
R235 315-0751-00 RES. ,FXD,COMP:750 OHM,5t,0.25W 01121 CB7515
R237 315-0512-00 RES. ,FXD,COMP:5.1K OHM,5%,0.25W 01121 CB5125
R239 301-0511-00 RES. ,FXD,COMP:510 OHM,5%,0.50W 01121 EB5115
R241 315-0102-00 RES, ,FXD,COMP:1K OEM,5%,0.25W 01121 CBl025
R243 315-0471-00 RES. ,FXD,COMP:470 OHM,5%,0.25W 01121 CB4715
R244 315-0101-00 RES. ,FXD,COMP:100 OHM,5%,0.25W 01121 cCB1015
R246 315-0102-00 RES. ,FXD,COMP:1K CHM,5%,0.25W 01121 CB1025
R250 321-0217-00 RES. ,FXD,FILM:1.78K OHM,1%,0.125W 75042 CEATO-1781F
R251 321-0192-00 RES. ,FXD,FILM:976 OHM,14,0.125W 75042 CEATO-9760F
R252 321-0260-00 RES. ,FXD,FILM:4.99K OHM,1%,0.125W 75042 CEATO-4991F
R253 321-0220-00 RES. ,FXD,FILM:1.91K OHM,1%,0.125W 75042 CEATO-1911F
R255 322-0154=00 RES. ,FXD,FILM:392 OHM,1%,0.25W 75042 CEBTO-3920F
R256 321-0235-00 RES. ,FXD,FILM:2.74K OHM, 1%,0.125W 75042 CEATO-2741F
R258 321-0209-00 RES. ,FXD,FILM:1, 47K OHM, 1%,0.125W 75042 CEATO-1471F
R260 323-0135-00 RES. ,FXD,FILM:249 OHM,1%,0.50W 75042 CECTO-2490F
R261 315-0682-00 RES. ,FXD,COMP:6.8K OHM,5%,0.25W 01121 CB6825
R310 321-0246-00 RES. ,FXD,FILM:3.57K OHM,l14,0.125W 75042 CEATO-3571F
R311 311-1567-00 RES. , VAR, NONWIR:100 OHM,20%,0.50W 73138 91A-100R0M
R313 321-0158-00 RES. ,FXD,FILM:432 OHM,1%,0.125W 75042 CEATO-4320F
R315 321-0158-00 RES. ,FXD,FILM:432 OHM,14,0.125W 75042 CEATO-4320F
R317 311-1567-00 RES. , VAR, NMONWIR:100 OHM ,20% ,0.50W 73138 91A-100ROM
R318 321-0246-00 RES. ,FXD,FILM:3.57K OHM,1%,0.125W 75042 CEATO-3571F
R320 315-0101-00 RES. ,FXD,COMP:100 OEM, 5%,0.25W 01121 cB1015
R321 321-0037-00 RES. ,FXD,FILM:23.7 OHM,1%,0.125wW 75042 CEATO-23R70F
R323 321-0063-00 RES. ,FXD,FILM:44.2 OHM,1%,0.125W 75042 CEATO-44R2F
R324 321-0085-00 RES. ,FXD,FILM:75 OHM,1%,0.125W 75042 CEATO-75R00F
R325 321-0097=00 RES. ,FXD,FILM:100 OHM,1%,0.125W 75042 СЕАТО-1000Е
R327 321-0085-00 RES. ,FXD,FILM:75 OHM,1%,0.125W 75042 CEATO-75R00F
R329 321-0154-00 RES. ,FXD,FILM:392 OHM,1%,0.125W 75042 CEATO-3920F
R331 321-0205-00 RES. ,FXD,FILM:1.33K OHM,1%,0.125W 75042 CEATO=1331F
R333 321-0242-00 RES. ,FXD,FILM:3.24K OHM,1%,0.125W 75042 CEATO-3241F
R340 315-0101=00 RES. ,FXD,COMP:100 OEM,54,0.25W 01121 CB1015
R341 321-0037-00 RES. ,FXD,FILM:23. 7 OHM,1%,0.125W 75042 CEATO-23R70F
REV. B OCT. 1974
3-6
Electrical Parts List—FG 503
Tektronix — Serial/Model No. Mfr
СК! Мо. Part No. Eff Dscont Name & Description Code Mfr Part Number
R343 321-0063-00 RES. ,FXD,FILM:44.2 OHM,1%,0.125W 75042 CEATO-44R2F
R344 321-0085-00 RES. ,FXD,FILM:75 OHM,1%,0.125W 75042 CEATO-75RO0F
R345 321-0097-00 RES. ,FXD,FILM:100 OHM,1%,0.125W 75042 CEATO-1000F
R347 321-0085-00 RES. ,FXD,FILM:75 OHM,1%,0.125W 75042 CEATO-75R00F
R349 321-0197-00 RES. ,FXD,FILM:1.1K OHM,1%,0.125W 75042 CEATO-1101F
R355 315-0821-00 RES. , FXD,COMP :820 OHM, 5%,0.25W 01121 CBB215
R357 315-0511-00 RES. ,FXD,COMP:510 OHM, 5%,0.25W 01121 CBS115
R359 315-0202-00 RES. ,FXD,COMP:2K OHM, 5%,0.25W 01121 CB2025
R360 315-0202-00 RES. ,FXD, COMP :2K OHM,5%,0.25W 01121 CB2025
R361 315-0911-00 RES. ,FXD,COMP:910 CHM,5%,0.25W 01121 CB9115
R364 315-0510-00 RES. ,FXD,COMP:51 OHM,5%,0, 25 01121 CB5105
R365 311-1467-00 RES. , VAR, NONWIR:2K OHM,20%,1W 01121 11M040
R367 315-0750-00 RES. ,FXD,COMP:75 OHM,5% ,0. 25W 01121 CB7505
R369 321-0223-00 RES. ,FXD,FILM:2.05K OHM,1%,0.125W 75042 CEATO-2051F
R371 321-0283-00 RES. ,FXD,FILM:B.66K OHM,1%,0.125W 75042 CEATO-8661F
R375 311-1568-00 RES. , VAR, NONWIR:50 OHM,20%,0.50W 73138 91ASOROOM
R376 315-0122-00 RES. ,FXD,COMP:1.2K OHM, 5%,0.25W 01121 cB1225
R377 315-0103-00 RES. ,FXD,COMP:10K CHM,5%,0.25W 01121 CB1035
R379 315-0103-00 RES. ,FXD,COMP:10K OHM, 54,0. 25W 01121 CB1035
R380 315-0152-00 RES. , FXD,COMP:1.5K OHM,5%,0.25W 01121 CB1525
R381 315-0102-00 RES. ,FXD,COMP:1K OHM,5%,0.25W 01121 CB1025
R382 315-0102-00 RES. ,FXD,COMP:1K OHM,5%,0.25W 01121 CB1025
R384 315-0182-00 RES. ,FXD,COMP:1.BK OHM,5%,0.25W 01121 CB1825
R385 311-1467-00 RES. , VAR, NONWIR:2K OHM,20%,1W 01121 11MO40
R386 315-0182-00 RES. ,FXD,COMP:1.8K OHM,5%,0.25W 01121 CB1825
R389 315-0622-00 RES. ,FXD,COMP:6.2K OHM,5%,0. 25W 01121 CB6225
R400 315-0102-00 RES. ,FXD,COMP:1K OHM, 5% ,0. 25W 01121 cB1025
R405 315-0301-00 RES. ,FXD,COMP:300 OHM, 5%,0.25H 01121 cB3015
R406 315-0100-00 8010100 B019999 RES, ,FXD,COMP:10 OHM,5%,0.25W 01121 CB1005
R406 303-0100-00 1 B020000 RES, ,FXD,COMP:10 OHM, 5%,1W 01121 681005
R410 315-0100-00 2010100 B019999 RES. ,FXD,COMP:10 OHM, S5%,0.25W 01121 CB1005
R410 303-0100-00 B020000 RES. ,FXD,COMP:10 OHM,5%,1W 01121 GB1005
R412 315-0303-00 RES. ,FXD,COMP:30K OHM, 5%,0.25W 01121 CB3035
R415 305-0510-00 RES. ,FXD,COMP:51 OHM,5%,2W 01121 HBS105
R419 315-0102-00 RES. ,FXD,COMP:1X OHM,5%,0.25W 01121 CB1025
R420 315-0301-00 RES. ,FXD,COMP:300 OHM,5%,0.25W 01121 CB3015
R425 315-0100-00 B010100 B019999 RES. ,FXD,COMP:10 OHM,5%,0.25W 01121 cB1005
R425 303-0100-00 BO20000 RES. ,FXD,COMP:10 OHM, 5%,1W 01121 681005
R427 315-0100-00 8010100 B019999 RES. ,FXD,COMP:10 OHM,5%,0.25W 01121 CB1005
R427 303-0100-00 3020000 RES. ,FXD,COMP:10 OHM, 5%,1W 01121 GB1005
#510 307-0093-00 RES. ,FXD,COMP:1.2 OHM, 5%,0.50W 01121 EB1265
R511 301-0100-00 RES. ,FXD,COMP:10 OHM, 5%,0.50W 01121 EB1005
R512 315-0432-00 RES. ,FXD,COMP:4.3K OHM, 5%,0.25W 01121 CB4325
R517 315-0332-00 RES. ,FXD,COMP:3.3K OHM, 5%,0.25W 01121 CB3325
R519 321-0261-00 RES. ,FXD,FILM:5.11K OHM,1%,0.125W 75042 CEATO-5111F
R520 311-1561-00 RES. , VAR ,NONWIR:2.5K OHM,20%,0.50W 73138 91A-25000M
R522 321-0289-00 RES. ,FXD,FILM:10K OHM,1%,0.125W 75042 CEATO-1002F
R523 308-0685-00 RES. ,FXD,WW:1.5 OHM,10%,1W 75042 BW20-1R500J
R525 315-0202-00 RES. ,FXD,COMP:2K OHM,5%,0.25W 01121 cB2025
R526 315-0470-00 RES. ,FXD,COMP:47 OHM, 5%,0.25W 01121 cB4705
R527 301-0201-00 RES. ,FXD,COMP:200 OHM,5%,0.50W 01121 EB2015
R528 321-0289-00 RES. ,FXD,FILM:10K OHM,1%,0,125W 75042 CEATO-1002F
R530 301-0152-00 RES. ,FXD,COMP:1.5K OHM,5%,0.50W 01121 EB1525
REV. B OCT. 1974
Electrical Parts List—FG 503
Tektronix Serial/Model No. Mfr
СК! Мо. Part No. Eff Dscont Name & Description Code Mfr Part Number
R560 307-0093-00 RES. ,FXD,COMP:1.2 OHM,5%,0.50W 01121 EB12G5
R561 301-0100-00 RES. ,FXD,COMP:10 OHM,5%,0.50W 01121 EB1005
R563 321-0261-00 RES. ,FXD,FILM:5.11K OHM,1%,0.125W 75042 CEATO-511lF
R564 321-0289-00 RES. ,FXD,FILM:10K OHM,1%,0.125W 75042 CEATO-1002F
R566 315-0202-00 RES. ,FXD,COMP:2K OHM,5%,0.25W 01121 CB2025
R567 308-0685-00 RES. ,FXD,WW:1.5 OHM,10%,1W 75042 BW20-1R5007
R569 315-0470-00 RES. , FXD,COMP:47 OHM,5%,0.25W 01121 cB4705
R600 301-0431-00 RES. ,FXD,COMP:430 OHM, 5%,0.50W 01121 EB4315
R603 301-0152-00 RES. ,FXD,COMP:1.5K OHM, 5%,0.50W 01121 EB1525
R625 321-0239-00 RES. ,FXD, FILM:3.01K OHM,1%,0.125W 75042 CEATO-3011F
RE26 321-0312-00 RES. ,FXD,FILM:17.4K OHM,1%,0125W 75042 CEATO-1742F
R629 321-0289-07 RES. ,FXD,FILM:10K OHM,0.1%,0.125W 75042 CEAT9-1002B
R631 301-0152-00 RES. ,FXD,COMP:1.5K OHM,5%,0.50W 01121 EB1525
R633 321-0289-07 RES. ,FXD, FILM:10K OHM, O.1%,0.125W 75042 CEATS-1002B
R640 315-0512-00 RES. ,FXD,COMP:5.1K OHM, 5%,0.25W 01121 cB5125
RT103 307-0343-00 RES. , THERMAL :200 OHM,10% 15801 2D10
5270 263-1090-00 ACTUATOR ASSY,CAM SW:MULTIPLIER 80009 263-1090-00
s380 263-1038-00 ACTUATOR ASSY,CAM SW:FUNCTION 80009 263-1038-00
с101 156-0158-00 MICROCIRCUIT,LI:DUAL OPERATIONAL AMPLIFIER 18324 s5558V
ul21 156-0067-00 MICROCIRCUIT,LI:OPERATIONAL AMPLIFIER 80009 156-0067-00
U235 156-0116-00 MICROCIRCUIT, LI:DUAL COMPARATOR 04713 MC1711CL
0241 156-0043-00 1010100 B019999 MICROCIRCUIT,DI:2-INPUT NOR GATE 01295 SN7402N
0241 156-0180-00 B020000 MICROCIRCUIT,DI:QUAD 2-INPUT NAND GATE 01295 sSN74S00N
0512 156-0067-06 MICROCIRCUIT,LI :OPERATIONAL AMPLIFIER 80009 156-0067-06
U566 156-0067-06 MICROCIRCUIT, LI :OPERATIONAL AMPLIFIER 80009 156-0067-06
0628 156-0067-00 MICROCIRCUIT,LI :OPERATIONAL AMPLIFIER 80009 156-0067-00
U640 156-0067-00 MICROCIRCUIT,LI :OPERATIONAL AMPLIFIER 80009 156-0067-00
VR131 152-0217-00 SEMICOND DEVICE :ZENER, 0. 4W, 8. 2V,5% 07910 1N756A
VR235 152-0168-00 SEMICOND DEVICE :ZENER,0.4W,12V,5% 04713 1N963B
VR239 152-0280-00 SEMICOND DEVICE :ZENER, 0. 4W,6.2V,5% 04713 1N753A
VR261 152-0243-00 SEMICOND DEVICE :ZENER, 0.4W,15V,5% 81483 1N965B
VR517 152-0461-00 SEMICOND DEVICE :ZENER,O. 4W,6. 2V,5% 04713 1N821
VR600 152-0279-00 SEMICOND DEVICE :ZENER, 0. 4W,5.1V,5% 07910 1N751A
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