Tektronix 221 Instruction Manual

Tektronix, Inc.

P.O. Box 500

Beaverton, Oregon 97005

070-1573-01

TEKTRONIX

OSCILLOSCOPE

SERVICE

INSTRUCTION MANUAL

h ttp ://m Q n o m Q n .s q h ill.c o m

W ARRANTY

A ll TEKTR O N IX instruments are warranted against defective materials and workmanship fo r one year. Any questions w ith respect to the warranty should be taken up w ith your TEKTR O N IX Field Engineer or representative.

A ll requests fo r repairs and replacement parts should be directed to the TEKTR O N IX Field Office or representative in your area. This w ill assure you the fastest possible service. Please include the instrument Type Number or Part

Number and Serial Number w ith all requests fo r parts or service.

Specifications and price c

. % & & * & ' * * * * *

Copyright 1973, new material 1974, by Tektronix,

Inc., Beaverton, Oregon. Printed in the United States of

America. A ll rights reserved. Contents of this publication may not be reproduced in any form w ith o u t permission of

Tektronix, Inc.

U.S.A. and foreign TEKTR O N IX products covered by U.S. and foreign patents and/or patents pending.

TEKTRO NIX is a registered trademark o f Tektronix, Inc.

221 Service

TABLE OF CONTENTS

SECTION 1 OPERATING INFORMATION

AND SPECIFICATIONS

INTRODUCTION

ELECTRICAL

Vertical Deflection System

Triggering

Horizontal Deflection System

Display

Power

PHYSICAL

SECTION 2 FUNCTIONS OF CONTROLS

AND CONNECTORS

SECTION 3 PREVENTIVE M AINTENANCE

Disassembly

Cleaning

Visual Inspection

Semiconductor Checks

Recalibration

SECTION 4 CIRCUIT DESCRIPTION

BLOCK DIAG RAM

CIRCUIT OPERATION

Vertical Am plifier

Trigger Sweep

Horizontal A m plifier

Power Supply

CRT Circuit

2-1

3-1

3-1

3-2

3-2

3-3

4-1

4-1

4-1

4-3

4-5

4-6

4-8

Page

1-1

1-1

1-1

1-1

1-2

1-2

1-2

1-3

SECTION 5 C ALIBR ATIO N

TEKTR O N IX FIELD SERVICE

TEST EQUIPMENT REQUIRED

5-1

5-1

SECTION 5 C ALIBR ATIO N (cont)

PRELIM INARY PROCEDURE

PRELIM INARY CONTROL

SETTINGS

INDEX TO C ALIBR ATIO N

PROCEDURE

POWER SUPPLY

DISPLAY

VE R TIC A L SYSTEM

SWEEP TRIGGER

HO RIZONTAL SYSTEM

SECTION 6 TROUBLESHOOTING AIDS

Diagrams

Troubleshooting Equipment

Component Color Coding

Isolating Trouble To A C ircuit

SECTION 7 CORRECTIVE MAINTENANCE

Obtaining Replacement Parts

Component Replacement

Recalibration A fte r Repair

Instrument Repackaging

SECTION 8 ELECTRICAL PARTS LISTS

SECTION 9 DIAGRAMS, CIRCUIT BOARD

ILLUSTRATIONS

6-1

6-1

6-2

6-2

Page

5-2

5-2

5-3

5-4

5-6

5-7

5-11

5-12

7-1

7-1

7-2

7-2

8-1

SECTION 10 MECHANICAL PARTS LISTS

CHANGE INFORMATION

10-1

REV. B, AUG. 1974

221 Service http://manoman.sqhill.com

Fig. 1-1. The Tektronix 221 Oscilloscope.

OPERATING INFORMATION

AND SPECIFICATIONS

Section 1—221 Service

IN TR O D U C TIO N

The 221 Oscilloscope is a single-channel, five megahertz portable instrument using all solid state and integrated circuit components (except the crt). The instrument is mechanically constructed to withstand the shock, vibration, and other extremes associated w ith portability.

The following electrical characteristics apply over an ambient temperature range of —15°C to +55°C (+5°F to

+131°F) battery operation, or 0°C to +40°C (32°F to

+104°F) for line voltage operation.

The dc to five megahertz vertical system provides verti cal deflection factors from five m illivolts to 100 volts/ division at the tip of the integral high-impedance probe.

The trigger circuit provides stable triggering over the fu ll range of vertical frequency response.

The horizontal deflection system provides calibrated sweep rates from 200 milliseconds to one microsecond/ division. A sweep variable decreases calibrated sweep rates by about 2.5:1, resulting in a minimum uncalibrated sweep rate of about 0.5 second/division. A calibrated X10 sweep magnifier increases the sweep to at least 0.1 microsecond/ division. In addition, horizontal amplifier operation pro vides a horizontal deflection factor o f one volt/division for

X-Y operation. The cathode-ray tube has a six by ten division graticule (each division equals approximately

0.2 inch).

The 221 is operated either from ac line voltage or from internal rechargeable batteries. The internal batteries are recharged from the ac power line by the integral battery charger (with the instrument on or o ff).

This instrument w ill meet the follow ing electrical char acteristics after complete instrument calibration. These characteristics apply over an ambient temperature range of

—15°C to +55°C (+5°F to +131°F) when battery operated, or 0°C to +40°C (+32°F to +104°F) when the instrument is connected to ac line voltage. Warmup tim e for given accuracies is five minutes.

ELECTRICAL

The 221 oscilloscope w ill meet the follow ing electrical specifications after calibration. The check portion of the calibration procedure provides a convenient method of checking instrument performance w itho ut making internal checks or adjustments.

Vertical Deflection System

Calibrated Range: five m illivolts to 100 volts/division in

14 steps.

Accuracy: w ithin 3% w ith VAR VO LTS /D IV in CAL detent position.

Uncalibrated VAR VO LTS/DIV range: Continuously variable, 3:1 minimum.

Bandwidth (with six division reference): to at least five megahertz (—3 dB point), with V A R IA B LE VO LTS/

DIV in CAL position.

Step Response: 70 nanoseconds or less.

Aberrations: +5%, —5%, 5% peak to peak total.

Input Resistance: 1 megohm.

Input Capacitance: Approximately 29 picofarads.

Maximum Safe Input Voltage: 600 volts (dc + peak ac),

600 volts peak-to-peak ac.

Triggering

Trigger Sensitivity:

INT: 0.5 divisions from two hertz to one megahertz, increasing to 1 division at five megahertz.

EXT: 0.5 volt from dc to one megahertz; increasing to 1 volt at 5 megahertz.

AUTO PRESET: Triggered at preset level on positive slope of waveform.

Display Jitter: 20 nanoseconds or less.

EXT TRIGGER:

Input Resistance: Approxim ately one megohm.

Input Capacitance: Approxim ately 30 picofarads.

Maximum Usable Input Voltage: Three volts (dc + peak ac), six volts peak-to-peak ac (five megahertz of less).

REV. B, FEB. 1976

1-1

Operating Information and Specifications—221 Service

Horizontal Deflection System

Sweep Generator:

Calibrated Range; 200 milliseconds to one microsecond/ division in 17 steps.

Accuracy (over center eight divisions): Within 3% with

VAR SEC/DIV in the CAL position.

Linearity (any tw o division portion, w ithin the center eight divisions): Within 3%, disregard first 1 microsecond of sweep.

SEC/DIV VAR (Variable): Continuously variable between calibrated setting of the SEC/DIV switch. Extends minimum sweep rate to approximately 0.5 s/div. Each sweep rate is decreased 2.5:1.

Power

Line Voltage Operation:

Line Voltage Range: 90 V to 250 V ac; 80 V to 250 V dc.

Line Frequency Range: 48 to 62 Hertz.

Maximum Power: Five watts.

Line Fuse: 0.2 A 250 V.

Common Isolation:

Line Operation: Line voltage plus floating voltage not greater than 250 volts RMS sine wave, or 1.4 times line voltage + dc + peak ac floating voltage not greater than

350 volts.

Battery Operation: Common to outside of case floating voltage not greater than 500 volts RMS or

700 volts dc + peak ac.

Horizontal Magnifier (HORIZ-MAG 10X) Calibrated magnifier when SEC/DIV is in CAL detent. Accuracy w ithin 5%, disregard the first 1 microsecond of the sweep.

External Horizontal Input:

Deflection Factor: One volt/div IX , 0.1 volt/div 10X.

Accuracy w ithin 10%.

B a nd w idth :

500 kilohertz.

With six division reference dc to

Battery Operation:

Batteries: Ten rechargeable A nickel-cadmium cells.

Charge tim e: 16 hours for fu ll charge.

Battery Charge Indicator- Battery meter indicates Full,

Low and Recharge. Recharge is indicated after automatic shut-off turns instrument o ff.

Battery Discharge Charge Protection: Instrument opera tion automatically interrupted when battery charge is less than 10 volts.

Input Resistance: Approxim ately 500 kilohms.

Input Capacitance Approxim ately 30 picofarads.

Maximum Safe Input Voltage: 200 volts (dc to peak ac),

200 volts peak-to-peak ac.

Typical Operating Time (after full charge cycle at +20°C to +30°C): Two to three hours. Longest operating time provided at low trace intensity.

Typical Charge Capacity

(Referenced to charge/discharge at +20°C to +30°C):

M axim um Usable Input Voltage: Approximately

± nine volts.

Display

Graticule:

Type: Internal back line, non-illuminated.

Area: Six vertical divisions by 10 horizontal divisions.

Phosphor: P31 Standard.

1-2

TA B LE 1-1

CHARGE O PERA TIN G TEM PE R A TU R E

TEM PER ATU RE +15°C +20° C to +30° C +55° C

0°C (+32° F) 40% 60% 50%

100% 85% +20° C to +30° C 65%

(+68° F to +86° F)

40° C (+104°F) 40% 65% 55%

REV. B, FEB. 1976

PHYSICAL

Temperature:

Operating from Batteries, -1 5 ° C to +55°C (+5°F to

+131°F).

Charging or operating from ac line, 0°C to +40°C

(+32°F to +104°F).

Storage, -4 0 °C to +60°C (-4 0 ° F to +140°F).

Operating Information and Specifications—221 Service

Hum idity (operating and non-operating): 5 days 50°C to

95% relative hum idity.

Shock (operating and non-operating): Tested w ith two shocks at 100 g, one-half sine, tw o millisecond duration each direction along three major axes.

Weight (w ithout accessories):

3.5 pounds (1.5 kilograms)

A ltitude:

Operating, to 25,000 feet (maximum operating tem perature decreased by 1°C per 1,000 feet shown above

15,000 feet).

Non-operating, to 50,000 feet.

Dimensions (measured at maximum points):

Height: 3.0 inches (7.6 centimeters).

Width: 5.25 inches (13.2 centimeters).

Depth: 9.0 inches (22.8 centimeters).

REV. APR 1974

1-3

FUNCTIONS OF

CONTROLS AND CONNECTORS

Section 2 —221 Service

A ll controls and connectors necessary for operation of the 221 are located on the right side panel of the instrument. See Fig. 2-1. A brief description of each control and connector is given here.

AC—blocks dc components of input signal. Low frequency lim it (—3 dB point) is about two hertz.

GND—Input circuit is grounded. The applied signal is connected to ground through a large resistor to provide a precharge path for the AC input coupling capacitor.

V O LT S /D IV —selects vertical deflection factor (VAR

VO LTS/DIV must be in the CAL position for indicated deflection).

DC—A ll components of the input signal are passed to the vertical amplifier system.

STEP ATTEN B A L—screwdriver adjustment to balance the vertical system for minimum trace shift when changing deflection factors.

Vertical POS—controls the vertical position of the trace.

VERT G A IN —screwdriver adjustment to set the gain of the vertical system.

VAR V O LT S /D IV —provides a continuously variable deflection factor between the calibrated settings of the

VO LTS/DIV switch.

SEC/DIV selects the sweep rate (VAR SEC/DIV must be in the CAL detent; HORIZ MAG must be in X I position, for indicated sweep rate). 1 V position allows fo r X-Y operation w ith the horizontal deflection provided by the signal connected to the EXT TRIG OR HORIZ INPUT jack.

Horizontal POS—controls the horizontal position o f the trace.

VAR SEC/DIV—provides continuously variable sweep rates between calibrated settings of the SEC/DIV switch.

Extends the minimum sweep rate to about

0.5 second/division.

INPUT COUPLING—selects method used to couple the input signal to the vertical amplifier system.

HORIZ MAG—X10 magnifier to increase the maximum sweep time to 0.1 microsecond/division and provides a horizontal sensitivity of 0.1 volt/division in X-Y operation.

REV. B, FEB. 1977

Fig. 2-1 Side panel showing controls and connectors.

2-1

Functions of Controls And Connectors—221 Service

VOLTS/DIV

Fig. 2-2. Side panel showing controls and connectors.

SWP C AL—screwdriver adjustment to set the basic tim ing of the horizontal system.

EXT-INT—selects the source of the trigger signal.

TRACE RO TATIO N—screwdriver adjustment to align trace w ith graticule lines.

IN TEN SITY—controls brightness of crt display (detent turns OFF instrument power).

EXT TRIG OR HORIZ INPUT—banana jack for input of an external trigger signal or for input of an external horizontal (X) signal for X-Y operation.

FOCUS—screwdriver adjustment to obtain a well-defined display

BATTER Y—expanded scale meter to indicate the relative charge level o f the internal batteries.

LEVEL/SLOPE—selects the amplitude point and slope of the trigger signal on which the sweep is triggered. When the indicator dot is to the left of center, the sweep is triggered on the positive-going slope of the trigger signal; to the right of center, on the negative-going slope. When the

LEVEL/SLOPE control is set to the AUTO PRESET detent, the sweep is automatically triggered at a preset level on the positive-going slope.

POWER—(counterclockwise detent of the INTENSITY control). Controls power to the instrument. Does not interrupt charging current to the internal batteries when connected to an AC line voltage.

AUTO PRESET—screwdriver adjustment to set the

PRESET trigger point fo r AUTO sweep operation.

COMMON—banana jack to establish common ground between the 221 and the external signal source or equipment under test.

2-2 REV. B, FEB. 1977

PREVENTIVE MAINTENANCE


Preventive maintenance, when performed on a regular basis, can prevent instrument breakdown and may improve the reliability of the 221. The severity of environment to which this instrument is subjected w ill determine the frequency of maintenance. A convenient time to perform preventive maintenance is preceding recalibration of the instrument.

Disassembly

To gain access to the interior of the instrument, unwind the probe and the power cord from the rear of the instrument. Remove the five screws in the bottom cover of the instrument. See Fig. 3-1. Gently separate the bottom cover from the instrument and lay aside.

Avoid the use o f chemical cleaning agents which m ight damage the plastics used in this instrument.

Avoid chemicals which contain hydrochloric acid, sodium hydroxide, o r sulfuric acid.

If access to the fro n t of the Input circuit board is necessary, remove the knobs from all of the external control shafts. Remove the two screws securing the side panel to the Input circuit board and remove the instrument side panel.

Cleaning

The 221 should be cleaned as often as operating conditions require. Accumulation of d irt in the instrument can cause component breakdown.

The high impact plastic covers provide protection against dust in the interior of the instrument. Loose dust accu mulated on these covers can be removed w ith a soft cloth or small brush. The brush is also useful for dislodging d irt on and around the side panel controls. D irt that remains can be removed w ith a soft cloth dampened in a mild detergent and water solution. Abrasive cleaners should not be used.

Cleaning the interior should only be occasionally neces sary. The best way to clean the interior is to blow o ff the dust with a dry, low-velocity stream of air. A soft-bristle brush or a cotton-tipped applicator is useful for cleaning in narrow spaces or for cleaning more delicate components.

REV. APR 1974

3-1

Preventive Maintenance—221 Service

Visual Inspection

The 221 should be inspected occasionally for such defects as broken connections, improperly seated transis tors, damaged circuit boards, and heat-damaged parts. The corrective procedure for most visible defects is apparant; however, particular care must be taken if heat-damaged components are found. Overheating usually indicates other trouble in the instrument; therefore, correcting the cause of the overheating is important to prevent recurrance of the damage.

performance is actual operation in the instrument. If checking the performance of a semiconductor out of the instrument is desired, a dynamic checker, such as the

Tektronix Type 577 Curve Tracer system, is recommended.

Lead configurations of the semiconductors used in the 221 are shown in Fig. 3-2.

Semiconductor Checks

Periodically checking the semiconductors in the 221 is not recommended. The best check of semiconductor

An extracting tool should be used to remove the eight-pin fla t integrated circuit to prevent damage to the pins. If an extracting tool is not vailable when removing one of these integrated circuits, pull slowly and evenly on both ends of the device. Avoid having one end of the integrated circuit disengage from the socket before the other, as the pins may be damaged. When replacing semiconductors, key the semiconductor index w ith that of the socket. Failure to do so w ill result in damaged components.

3-2

Fig. 3-2. Lead configurations of the semiconductors used in the 221 Oscilloscope.

REV. APR 1974

© l

Recalibration

To ensure accurate measurements, check the calibration of this instrument after each 1000 hours of operation, or every six months if used infrequently. In addition, replace

Preventive Maintenance—221 Service ment of components may necessitate recalibration of the affected circuits. The Calibration procedure can also be helpful in localizing certain troubles in the instrument. In some cases, minor troubles may be revealed or corrected by recalibration.

//manom

3-3

CIRCUIT DESCRIPTION


The following circuit description begins with a discus sion of the instrument usingtheblockdiagram. Then each circuit is described in detail, using detailed diagrams where necessary to show the relationship of each stage and the controls to that stage. The block diagram is shown in Section 9.

Vertical Amplifier

The Vertical Amplifier circuit is divided into three sections; the attenuators, the Preamplifier, and the Output

Amplifier. A block diagram of the Vertical Amplifier is shown in Fig. 4-1. Schematics of the Vertical Amplifier are shown on diagrams 1 and 3.

BLOCK DIAGRAM

Signals to be displayed on the crt are applied to the probe tip. The signal is then amplified by the vertical amplifier. The vertical amplifier contains the vertical position, attenuation, gain compensation, and input coupling circuitry.

The Trigger Generator initiates the sweep signal produced by the sweep generator. The input signal to the trigger generator is selected from the vertical signal or from an external signal applied to the EXT TRIG connec tor.

The input signals are applied to a 800 kilohm im pedance in the probe and a 200 kilohm attenuator network, which provides the 1 megohm impedance for the oscilloscope. The output of the attenuator is applied to the input of the Preamplifier, which consists of three sections; the buffer amplifier (Q132A and B, Q136A and B), a resistive attenuator (R143-R156), and an operational amplifier (Q162A and B, Q172A and B, and Q164). The

Preamp stage also provides Probe compensation,

Attenuator compensations, Step Attenuator Balance,

Volts/Div Balance, and Vertical Step Response (C167).

The Sweep Generator circuit produces a linear saw tooth signal that is amplified by the Horizontal Amplifier circuit. The slope of the sawtooth generator is controlled by the SEC/DIV switch. This circuit also produces the unblanking signal coincident with the sawtooth to permit display presentation.

Output signals from the resistive attenuator are applied to the positive input of the operational amplifier (Q162A base). The output signal (from collector Q164) is then applied to both the input of the output amplifier (base

Q422A) and, through feedback network R166and R167,to the negative input of the operational amplifier (base of

Q162B). Transistor Q172A and B serve as dc biasing circuitry for these amplifiers.

The power supply circuit provides all the voltage necessary for the operation of the instrument. Input power is provided by internal batteries or a line source. This circuit also provides a recharging circuit for the internal batteries.

CIRCUIT OPERATION

The following is a description of the electrical operation and relationship of the circuits in the 221 with a descrip tion of the circuitry most commonly used by Tektronix. If more information is desired on the commonly used circuit, refer to the following textbooks:

Phillip Cutler, "Semiconductor Circuit Analysis",

McGraw-Hill, New York, 1964.

The Output Amplifier provides the final amplification for the crt deflection plates and consists of three amplifier stages. Transistors Q422A and B, Q426A and B, and Q424 are connected as an operational amplifier, with resistors

R416, R417, R418, and R432 serving as the feedback network. It is otherwise similiar in operation to the operational amplifier described for the Preamplifier stage.

The operational amplifier drives a differential amplifier

(Q442A and B), which in turn drives a dual output amplifier. The Output Amplifier stage also provides the circuitry for the bandwidth adjustment (C432), the VER

TICAL POSITION control (R413), the Vertical Gain con trol (R417), and the VOLTS/DIV VARIABLE control

(R418). Transistor Q432 is connected as an emitter follower and provides the internal trigger signal for the trigger circuitry.

REV. B, AUG 1974 4-1

Circuit Description—221 Service

Fig. 4-1. Simplified block diagram of the Vertical Amplifier circuit.

One half of the dual output amplifier stage is an operational amplifier consisting of transistors Q452,

Q456, and diodes CR454-CR455, which provide the amplification for the positive signal to the crt vertical deflection plate. Likewise, transistors Q464, Q466, and diodes CR467-CR468 make up the other half of the operational amplifier, which serves the same function for the negative vertical deflection plate. Both amplifiers operate the same, so only the positive signal amplifier will be explained.

receives a common output signal from the collector of

Q452 and the emitter of Q456. Under fast, positive output signal conditions, the deflection plate is driven through the emitter follower Q456. Under fast negative signal conditions the collector of Q452 goes negative, and turns on a commutating diode CR454, which turns off Q456 through diode CR455, and thereby allows the collector of

Q452 to drive the deflection plate.

Under normal signal conditions, the voltage on the positive deflection plate is maintained by the emitter follower Q456. The output signal from the differential amplifier (collector Q442A) is applied to the input of the operational amplifier (base Q452). Feedback resistor R456

Transistors Q452, Q456, Q464, and Q466 are specially selected transistors for a lo w ' Cob (0.3 pf max.), a

500 Megahertz Ft and a Vet™ and Vcev not less than 80 volts.

The lead configuration is B ECS with the emitter and shield leads tied together on the printed circuit board.

REV B, AUG 1974 4-2 h ttp ://m Q n o m a n .s q h ill.c o m


TR IG G E R SOURCE

FOLLOWER

Fig. 4-2. Simplified block diagram of the Trigger Sweep circuit.

T rigger/Sweep

The Trigger Sweep circuit performs two functions. The

Trigger portion of the circuit derives trigger signals internally from the input of the vertical amplifier, or from signals applied to the EXT TRIG INPUT banana jack. The trigger output signals are coupled to the Sweep Multi circuit, which starts the action of the Sweep circuit.

tion for the crt. The block diagram of the Trigger/Sweep circuit is shown in Fig. 4-2. The schematic of the circuit is shown on diagram 2.

The Sweep portion of the circuit produces a linear sawtooth output signal when initiated by the Trigger circuit. The output signal is then amplified by the Horizon tal Amplifier circuit for horizontal deflection of the crt. An unblanking gate signal is also developed that is coincident with the sawtooth waveform. This gate signal unblanks the crt to permit a display presentation. An EXT HORIZ INPUT is also provided so external signals can be applied to the

Horizontal Amplifier circuit to produce horizontal deflec

The Trigger Source Follower (Q232A, Q232B) receives and buffers all incoming trigger signals and couples them to the base of Q234, one half of a differential amplifier

(Q234 and Q226). TRIGGER LEVEL/SLOPE control R213 sets a reference voltage level that corresponds to a desired trigger point on the incoming signal. This voltage is coupled through Q212 to the base of Q226, the other half of the differential amplifier. Transistor Q214 provides a slope switching function in conjunction with Trigger

Slope Selector transistors Q216 and Q218. When

TRIGGER LEVEL/SLOPE control R213 is rotated, the resulting voltage applied to the base of Q222 causes it to saturate at about the mid-point, or a zero volt level of the control. At this point Q214 turns on and slope switching occurs through Q216 or Q218.

REV. B, AUG 1974 4-3


The output of the differential amplifier (Q226-Q234) is coupled through emitter follower Q236 to the Schmitt

Trigger, composed of transistors Q244 and Q246. This circuit controls the action of the Sweep Multi. When Q246 turns on, TriggerSlopetransistorsQ216 (—Slope) orQ218

(+Slope) will conduct. This couples the output through

T312, changes CR317 to a high state, and generates a trigger pulse for the Sweep Multi. Diode CR317 returns to the low state when Hold-off transistor Q312 becomes turned off retrace current through R333. The sweep runs back up until Q330 turns on and sets the sweep start voltage. The retrace current from the collector of Q330 then discharges , the sweep start hold-off capacitors. When transistor Q316 turns on and Q312 off, the trigger pulses are no longer inhibited.

The Sweep Multi circuit composed of transistors Q322,

Q324, and Q326 drives the Sweep Start transistors Q330 and Q334, which produce an unblanking signal for the crt and sets the sweep start voltage for the Miller Integrator

When the sweep is triggered, transistor Q322 is turned off and Q324 turns on. Transistor Q332 then charges up sweep hold-off capacitors C325, C326, and C327 Tran sistor Q334 turns off Q328 and Q330. The Miller Integrator is composed of Q336A and B, Q338, Q340, and Q342.

Transistor Q316 is turned off and Q312 is turned on. This resets CR317 to its low state, inhibiting any further trigger pulses. The sweep is now set for the run-down. As the sweep runs down, Q324 becomes turned off by the current through CR328 and R328. When Q324 turns off, Q322 turns on. Transistor Q328 also turns on and supplies

The Latch circuit composed of transistors Q252, Q254, and emitter follower Q256, controls the Sweep Multi operation in the Auto Preset position. The output of Q244 turns on the Latch transistors and discharges C256, the free-running hold-off capacitor, when S213B is in the open position (Auto Preset mode). In the closed position,

S213B keeps C256 from being charged through resistor

R256, permitting trigger pulses to initiate the circuit action. Emitter follower Q256 changes CR317 to its high state (in the absence of trigger pulses) through R258,

R316, and the secondary of T312.

In the EXT Sweep mode of operation, CR228 is connected to —5 volts by S350, which turns off the trigger amplifier. Transistor Q322 is turned off by R318 and

CR318, turning on Q324 to unblank the crt. Transistor

Q328 is turned off, which turns off the retrace current, permitting the Miller Integrator to be connected as an inverting operational amplifier

4-4 REV. B, AUG 1974

+ R545


HO R IZS IG

TO CRT

DEFLECTION

PLATES

I

| H O B IZ M A g

]

S521

Fig. 4-3. Simplified block diagram of the Horizontal Output Amplifier circuit.

Horizontal Amplifier

The Horizontal Output Amplifier provides amplification for the sweep signal or the horizontal signal (used in theX-

Y mode), to drive the crt deflection plates. A block diagram of the Horizontal Output amplifier is shown in Fig. 4-3. The schematic is shown on diagram 3.

Current output from the collector of Q526, which is proportional to the output signal, is applied through the diode limiter CR532, CR533, CR535, and CR536 to the input of the second operational amplifier.

Transistor Q502 is connected as a buffer amplifier between the sweep generator and the horizontal amplifier.

The horizontal amplifer consists of three operational amplifiers. Transistors Q516, Q522, and Q526 are con nected as the first operational amplifier that controls the horizontal gain, positioning, and magnification.

TransistorsQ532, Q542, and Q544 are connected as the second operational amplifier, which drives the input resistance (R548) of the third operational amplifier and the positive deflection plate. Resistor R545 serves as the amplifier feedback resistance, with R542 and C542 providing the High Frequency signal path for the positive going output signal.

Resistors R504 and R505 serve as the input resistance to the amplifier. The feedback resistance (R525, CR525, and R511) is connected from the emitter of Q526 back to the operational amplifier input (emitter Q516), and deter mines the gain for the XI and X10 mode. In the XI mode,

Q518 is turned on and shorts R511. In the X I0 mode, Q518 is turned off, adding R511 to the feedback resistance.

Horizontal Position control R518 applies an offset current to the input of the operational amplifier for the required dc positioning.

The third operational amplifier consists of transistors

Q552, Q554, and Q556, with R548 being the input resistance and R556 the feedback resistance. It is con nected as an inverting amplifier with a gain of one, and drives the negative deflection plate. This amplifier operates similarly to the vertical deflection plate drivers described in the Vertical Amplifier section.

REV. B, AUG 1974 4-5


POWER INVERTER

BRIDGE

RECTIFIER

CR612

CR613

CR614

CR615

LINE

INVERTER

0622

Q626

T623

RECTIFIERS

T633

CR633

CR632

RFI

FILTER

P610

LINE

INPUT

REGULATOR

+5 -5

SECONDARY INVERTER

Gl 4D

REFEF

Af

=IENCE rfP

U6 54

+48 V

+76 V

I

I ON

S738

Fig. 4-4. Simplified block diagram of the Power Supply circuit.

The c irc u it from the pow er line to the prim ary o f

T633 is floating at line potential. Any signal measurem ent in this c irc u it m ust be referenced to pin 1 of T633, and should be measured only if an

Isolation transform er is used on the pow er line.

Power Supply

The 221 Power Supply circuit is divided into three sections; the Power Inverter, the +5 V - 5 V Regulator, and the HV Inverter. A block diagram of the Power Supply is shown on Fig. 4-4. The schematic of the Power Supply is shown on diagram 4.

When the instrument is connected to a power source,

C612, R612, C613, R613, R614, L610, and C614 function as a RFI filter to minimize RFI interference. The line voltage is rectified by diode bridge CR612, CR613, and CR615, which supplies the dc voltage for the Line Inverter circuit.

Transistors Q622 and Q626 convert the dc voltage into a square-wave voltage. The square-wave voltage is applied to an LC resonant circuit consisting of C623 and T633.

Feedback is provided from T633, through R626, back to the base drive transformer T623, to sustain the oscillation.

As the output power changes, the frequency of the square- wave changes with respect to the resonance of L (T633) and C (C623), permitting the Power Inverter to remain constant. In this way a correct output level is maintanined over the specified line voltage range and operating conditions.

4-6 REV. B, AUG 1974

The output of the Power Inverter is rectified by CR632 and CR633, filtered by L632-C632, and then used to power the instrument and charge the batteries. Transistor Q634 is an error amplifier that regulates the battery charge current by providing a feedback signal through current- sensing resistor R632 back to the control winding of T623.

This winding (pins 6 through 9), varies the frequency of the Power Inverter circuit. When the 221 is operated from the battery source, CR634 serves to connect the power to the instrument. When the 221 is connected to a power line, diode CR634 becomes reversed biased, which permits the error amplifier (Q634) to function. A start-up circuit consisting of CR622, C622, and R622 injects a signal into the base of Q626 to start-up the Line Invertercircuit. Diode

CR621 serves to stop the free-running action of the start up network.

The +5 V —5 V Regulator circuit derives its voltage from the Line Inverter circuit or the batteries, and regulates this voltage to 10 volts. Diodes CR654 and

VR654 serve as the reference source, with Q648 func tioning as a series-pass element. Transistors Q642 and

Q644 operate as an error amplifier of the series-pass regulator circuit. Transistors Q640 and Q646 function as a protective circuit for the battery supply. When the battery voltage becomes lowerthan 10.3 volts, Q640and Q646are turned off, which turns off the entire power supply. This action prevents the complete discharge of the batteries whenever the battery charge becomes low.


Operational amplifier U654 is connected as a buffer amplifier providing a ground reference at the mid-point of the 10 volt supply, creating the +5 volt and the —5 volt supplies. Capacitors C656 and C657 provide filtering for the respective supply.

The Secondary Inverter circuit produces the +48 volt,

+75 volt, approximately 600 volt peak-to-peak supply, and a 1.4 volt peak-to-peak crt heatersupply. The+48 volt peak-to-peak supply is rectified and filtered by the network consisting ofC712,CR712,CR713,and L713.The

+75 volt peak-to-peak supply is rectified and filtered by the network consisting of C715, CR715, CR716, C714, and

L716. Transistors Q666 and Q668 are connected as a free- running inverter, driving T701. Transistors Q660 and

Q662, in conjunction with FET Q664, operate as a regulating circuit for the 1000 volt supply in the Secon dary Inverter stage. When the 1000 volt supply is at a normal level, Q664 supplies the base drive to Q666 and

Q668. When a change occurs in the 1000 volt supply, a difference is sensed by the gate of Q664 {through feedback resistor R667), which results in a re-adjustment of the base drive to Q666 and Q668. An adjustable current reference is also provided to Q664 through Q660and Q662 by HIGH VOLTAGE adjustment R662.

REV. B, AUG 1974

4-7


Fig. 4-5. Simplified block diagram of the CRT circuit.

CRT Circuit

The CRT circuit provides the high voltage and control circuits necessary for operation of thecrt. A block diagram of the CRT circuit is shown in Fig. 4-5. A schematic is shown on diagram 5.

the Secondary Inverter stage and serves as a reference for the regulating circuit.

A network consisting of CR733, C733, CR734, C734,

CR735, and CR736 is connected as a voltage doubler that provides approximately 1100 volts to the crt circuit. The

1100 volts is connected to a 110 V Zener diode VR738, which provides a 1000 volts supply to the Intensity circuit.

It is further divided by R734 and R735to provide the Focus control voltage. The 1000 volt supply is also returned to

Deflection plate blanking is used for controlling the crt beam. When an unblanking signal is received, Q754 turns on and forward biases CR756, which lowers the deflection blanking voltage to approximately 40 volts, which allows the electron beam to pass to the crt screen. The CRT GRID

BIAS adjustment R739 controls the maximum usable intensity. The TRACE ROTATION adjustment R751 con trols the current through L751, which affects both the vertical and horizontal rotation of the crt beam. FOCUS control R733, used in conjunction with ASTIGMATISM adjustmenet R752, is adjusted to obtain a well-defined display. UNBLANKING adjustment R753 is adjusted for optimum trace brightness.

4-8 REV. B, AUG 1974


CALIBRATION

T E K T R O N IX FIE LD SERVICE

Tektronix, Inc. provides complete instrument repair and recalibration at the Field Service Centers, and the Factory

Service Center. Contact your local Tektronix Field Office or representative.

To assure instrument accuracy, check the calibration of the 221 every 1000 hours of operation, or every six months if used infrequently. Before calibrating the 221, thoroughly clean and inspect the instrument; see the maintenance section of this manual.

TEST EQUIPM ENT REQ UIRED

The following test equipment and accessories, or equiv alent, are required for the complete calibration of the 221

The given specifications for the test equipment are the minimum necessary for accurate calibration. Therefore, the specifications of any test equipment used must meet or exceed the listed specifications. A ll the test equipment is assumed to be correctly calibrated and operating w ithin the listed specification. Detailed operating instructions for the test equipment are not given in this procedure. Refer to the instruction manual for the test equipment if more informa tion is needed.

To aid in locating a step in this procedure, an index is given before the complete procedure. Where possible, the instrument performance is checked before an adjustment is made. For best overall instrument performance, make each adjustment to the exact setting even if the CHECK— step is w ithin the allowable tolerance.

Special Tektronix Calibration Fixtures are used in this procedure only where they facilitate instrument calibration.

These calibration fixtures are available from Tektronix, Inc.

Order by part number through your local Tektronix Field

Office or representative.

Table 5-1

TEST E Q U IPM ENT R E Q U IR E D

Description

1. Constant Amplitude

Signal Generator

Minimum Specifications

50 kHz reference frequency; maximum frequency 6 MHz; variable amplitude.

Usage

Check horizontal vertical and trigger bandwidth

Examples of Applicable

Test Equipment

Tektronix Type 191 Constant

Am plitude Signal Generator.

2. Standard Amplitude

Calibrator

Am plitude accuracy 0.25%, variable amplitude; 5 mV to

100 V ; frequency: 1 kHz square wave.

Check horizontal and vertical gain.

Tektronix calibration fixture,

Part Number 067-0502-01

3. Square-wave

Generator

Variable frequency: 10 Hz to

1 MHz; output

400 mV to 80 V.

amplitude:

C heck p ro b e and vertical compensation.

Tektronix Type 106 Square- wave Generator.

4. 1:2 voltage step-up1 transformer

Double line voltage, 50 watt rating.

Check power supply and charger operation.

1:2 power transformer.

Variable A uto-1 transformer

Variable line voltage 90 V to

125 V.


Superior Electric Powerstat

Type N10B.

5. Digital Multimeter 0.1 % accuracy.


T e k tro n ix DM501 (Used with TM mainframe).

6. Time Mark Generator 0.1 % accuracy.

Check horizontal timing.

Tektronix TG 501 (Used w ith

TM mainframe).

Both items can be replaced by a unit possessing the appropriate characteristics, such as General Radio W 10MT3W . The Voltage step-up transformer is needed only when 230 VAC Line Voltage is not convenient.

REV. APR 1974

5-1

Calibration—221 Service

Description

7. Cable

8. Adapter

9. Adapter lO.Termination

11. Attenuator

12. Adapter

13. T-Connector

-14. Screwdriver

15. Low-Capacitance

Screwdriver

Minimum Specifications

Impedance, 50 ohms; type,

RG-58/U, length, 42 inches, connectors, BNC.

Table 5-1 (cont)

TEST EQ U IPM ENT R E Q U IR E D

Usage

External trigger operation check.

H o riz o n ta l gain check and adjustment.

Examples of Applicable

Test Equipment

T e k t r o n ix P a rt Number

012-0057-01.

Connectors, BNC female and dual banana plug.

External trigger checks.

T e k t r o n ix

103-0090-00.

P a rt Number

Connectors, GR874 and BNC female.

Vertical Am plifier compensation checks and adjustment


017-0063-00.

I m p e d a n c e , 5 0 o h m s ; accuracy, 2%, connectors,

BNC.

Vertical Am plifier compensation checks and adjustment.


011-0049-01.

Ratio, 10X; connectors, BNC; impedance, 50 ohms.

Connectors, probe tip to

BNC.

Vertical check.

Am plifier bandwidth T e k t r o n ix P a rt Number

011-0059-02.

Used throughout procedure for signal interconnection.


013-0084-01

Connectors, BNC.

E x te rn a l tr ig g e r operation checks.


103-0030-00.

Three-inch shaft, 3/32 inch bit.

Used throughout procedure to adjust variable resistors.

Xcelite R-3323.

3/4-inch shaft.

5/64 inch bit.

U sed to a d ju s t v a ria b le capacitors.


003-0675-00.

J.F D A d ju stm e n t Tool

5284.

P R E L IM IN A R Y PROCEDURE

This instrument should be calibrated at an ambient temperature of +25°C (±5°C) for best overall accuracy.

1 Disassemble as instructed in the Maintenance Section.

2. Connect the instrument to 90 Vac, to 250 Vac, 48 Hz to 62 Hz or 80 Vdc to 250 Vdc line source.

3. Set the instrument controls as given in the Prelimi nary Control Settings. A llow at least five minutes of warmup before proceeding.

NOTE

Titles fo r external controls o f this instrument are capitalized in the procedure (e.g., INTENSITY).

Internal adjustments are in itia l capitalized only (e.g..

Sweep Cal).

4. See the Adjustment Locations in the pullout pages.

P R E L IM IN A R Y CONTROL SETTINGS

Preset the instrument controls to the settings given below, when starting the calibration procedures.

VO LTS/DIV

SEC/DIV

Vertical POS

Horizontal POS

TRIGGER

TRIG LEVEL/SLOPE

INPUT COUPLING

HORIZ-MAG

VAR SEC/DIV (Time/Div)

VAR VO LTS/DIV

INTENSITY

0.1

1 m

Midrange

Midrange

Internal

AUTO PRESET

GND

IX

CAL

CAL

(Out of CCW Detent, ON)

As desired.

5-2 REV. B, AUG. 1976

IN D E X TO C A LIB R A TIO N PROCEDURE

Power Supply and Charger

1.

Check/Adjust Low-voltage Supply

2. Check/Adjust High-voltage Supply

3. Check/Adjust Grid Bias

4. Check+48-volt and+75-volt Supplies

5. Check Battery Charger Operation

Page

5-4

5-4

5-4

5-4

5-5

Display

6. Check/Adjust Astigmatism and FOCUS

7. Check/Adjust Trace Rotation

8. Check/Adjust CRT Unblanking

9. Check Geometry

5-6

5-6

5-6

5-6

Vertical System

10. C h e c k /A d ju s t Step Attenuation

Balance

11. Check/Adjust VO LTS/DIV VAR

Balance

12. Check/Adjust Probe Compensation

5-7

5-7

5-7


5-8 13. Check/Adjust Attenuator Compensa- tion

14. Check/Adjust Vertical Gain

15. Check/Adjust Vertical Step Response

16. Check/Adjust Vertical Bandwidth

17. Check Vertical Position Range

18. Check Input Noise

19. Check Gate Leakage

20. Check AC Coupling

5-8

5-9

5-9

5-9

5-9

5-10

5-10

Sweep Trigger

21. Check Trigger Slope

22. Check/Adjust Auto Preset Triggering

5-11

5-11

Horizontal System

23. Check/Adjust Horizontal Gain

24. Check/Adjust Horizontal Magnifier

Registration

25. Check Horizontal Bandwidth

26. Check/Adjust SWEEP CAL (Timing)

27. Check Horizontal Position Range

5-12

5-12

5-12

5-13

5-13

REV. B, AUG. 1974 5-3


Equipment Required

1. Digital voltmeter

2. Variable auto transformer

POWER SUPPLY

3. 1:2 power step-up transformer

4. Three-inch screwdriver

Control Settings

Preset the controls as given in the Preliminary Control

Setting.

c. Adjust the High Voltage adjustment R662 for exactly

—1000 volts. See Fig. 5-1.

1. Check/Adjust Low-voltage Supply a. Connect the digital voltmeter from the —5 volt test point to the +5 volt test point.

3. Check/Adjust Grid Bias a. Connect the digital voltmeter to the 0.2 volt test point.

b. Use the variable auto transformer and 1:2 power step-up transformer to provide a 90 to 250 Vac line source.

Connect the 221 oscilloscope to the line.

b. Rotate the INTENSITY to the fu lly clockwise position.

c. Check the digital voltmeter fo r a reading of 0.2 volt

±0.02 volt.

c. line.

Check for a reading of 10 volts from a 90 to 250 Vac d. Adjust Grid Bias Adjustment R739 fo r exactly

0.2 volt. See Fig. 5-1 d. Adjust R644 Low Voltage adjustment for exactly

10 volts. See Fig. 5-1.

4. Check +48-volt and +75-volt Supplies e. Connect the common lead of the digital voltmeter to the 0 volt test point.

a. Connect the digital voltmeter from the 0 volt test point to the +48-volt test point (leave INTENSITY fu lly clockwise fo r remainder of Step 4).

f. Check the +5 volt supply for +5 volts ±50 mV b. Check fo r a minimum of +48 volts.

c. Connect the digital voltmeter from the 0-volt test point to the +75 volt test point.

2. Check/Adjust High-voltage Supply a. Connect the digital voltmeter to the 1 kV test point.

b. Check fo r a reading of —1000 volts.

d. Check fo r a minimum of +75 volts.

e. Set INTENSITY as desired for normal viewing in

Step 5.

5-4 REV B, MAY 1978

5. Check Battery Charger Operation a. Connect the common lead of the digital voltmeter to the second pin connector on the power supply board.

Connect the other lead of the digital voltmeter to the BC test point. See Fig. 5-2.

b. Vary the line voltage from 90 to 250 Vac w ith the instrument on or off.

c. Check fo r a reading of +0.6 to +0.8 o f a vo lt on the digital voltmeter.

d. Check fo r a 0 volt reading on the digital voltmeter, when the instrument is disconnected from the power line.


+75 Volts 5th Pin Connector From Rear

+48 Volts 4th Pin Connector From Rear

2nd Pin Connector From Rear

OANC i

Battery Charge (BC)

Test Point

Fig. 5-2. Location of the +75 volt, +48 volt and the battery charger test points.

(Behind Pot)

TP

R662

High Voltage

R644

Low Voltage

0 V TP

- 1 0 0 0 V

TP

Fig. 5-1. Location of the Low Voltage, High Voltage adjustments and test points.

REV. APR 1974

5-5



1. Time mark generator

DISPLAY


3. Adapter (probe tip to BNC)



Setting. See Fig. 5-3 and Fig. 5-4 for locations of adjust ment controls.

6. Check/Adjust Astigmatism and FOCUS a. Set the SEC/DIV switch to the 1 V position (x-y mode) b. Set the INTENSITY control fo r a small spot, near center o f screen.

c. Check that the spot is round.

d. Adjust the FOCUS side panel screwdriver adjustment and the Astig. adjustment for a round spot.

8. Check/Adjust CRT Unblanking a. Set the INTENSITY to maximum, and set the

SEC/DIV switch to 1 /i.

b. Adjust unblanking adjustment R753 (see Fig. 5-3) so that retrace is just blanked out.

7. Check/Adjust Trace Rotation a. Set the SEC/DIV switch to 1 m.

b. Position the trace to the graticule center line.

c. Check that the trace is parallel to the center horizontal line.

d. Adjust Trace Rotation R751 (screwdriver adjustment on sidepanel) fo r a trace that is parallel w ith the horizontal graticule lines. See Fig. 5-4.

9. Check Geometry a. Preset the instrument controls as given in Preliminary

Control Setting.

b. Set the SEC/DIV switch to the 1 millisecond position, and INPUT COUPLING to DC.

c. Connect the time mark generator to the probe by an adapter (probe to BNC). Set the markers fo r 1 millisecond.

d. Set the VO LTS /D IV switch setting fo r a full-screen deflection.

e. Check that vertical and horizontal bowing is less than

0.1 division.

Astig Adjust

R752

Rear View

Step Atten Bal

R135

Probe Comp

C l 12 r

Fig. 5-3. Location of Astigmatism and CR T Unblanking adjust ments.

Fig. 5-4. Location of Step Attenuator Bal, Probe Compensation, and Focus adjustments.

5-6 http://manoman.sqhill.com

REV C, MAY 1978


1. Probe tip to BNC adapter

2. Standard amplitude calibrator

3. Constant amplitude signal generator

V E R T IC A L SYSTEM

4. Square-wave generator


6. Low-capacitance screwdriver




Settings,

10. Check/Adjust Step Attenuator Balance (STEP

BAL) a. Set the VO LTS/DIV switch to the 1 V position.

b. Position the trace to the horizontal center line.

c. Change the VO LTS/DIV switch to the 5 m position.

d. Check that the trace is w ithin 0.1 division of the center horizontal line.

e. Adjust the STEP ATTEN BAL adjustment, R135, for a trace at the horizontal center line. See Fig. 5-4.

d. Adjust the VAR VO LTS/DIV BAL adjustment for a trace shift for no more than 0.1 division. See Fig. 5-5.

12. Check/Adjust Probe Compensation a. Set the VO LTS/DIV switch to .1, and INPUT

COUPLING switch to DC.

b. Connect the square-wave generator to the 221. Use a probe tip to BNC adapter, a 50-ohm term ination, and a GR to BNC adapter.

c. Set the square-wave generator for a 5 kHz signal w ith four divisons of display.

d. Set the SEC/DIV switch to .1 m. Adjust the LE V E L/

SLOPE control fo r a stable display, triggered on the positive excursion of the waveform.

e. Check that the positive excursion of the displayed square wave is fla t (flat top).

f. Adjust C l 12 for the best square-wave display (flat top). See Fig. 5-4.

g. Leave test equipment connected.

f. Repeat part (a) through (e) until less than 0.1 division shift is noted when changing the VO LTS /D IV setting.

11. Check/Adjust V O L T S /D IV V A R BAL a. Set the trace to the center horizontal graticule line.

b. Set the VO LTS/D IV setting to 0.1 and the VO LTS/

DIV VAR to minimum counterclockwise direction.

c. Check that there is less than 0.1 division of trace shift when varying the VO LTS/DIV VAR control.

® t

Fig. 5-5. Location of the V O L T S /D IV Var Bal adjustments.

REV. APR 1974

5-7


13. Check/Adjust Attenuation Compensation a. Set the VO LTS/D IV switch to .2 and, set the

SEC/DIV switch to .1 m. See Fig. 5-6 for location of atten uator adjustments.

b. Adjust the output of the square-wave generator fo r a display o f 4 divisions in amplitude.

c. Check fo r a square wave that is fla t (flat top).

d. Adjust C l22 fo r a square wave that is fla t (flat top).

e. Set the square-wave generator fo r 50 kHz.

f. Set the SEC/DIV switch to 10 jus.

g. Check fo r a square wave that is flat.

h. Adjust C120 fo r a square wave that is flat.

i. Set the V O LTS/D IV switch to 2.

j. Set the SEC/DIV switch to .1 m.

k. Set the square-wave generator to 5 kHz and adjust the output fo r a four-division display.

l . Check display fo r a fla t square wave.

m. Adjust C l25 fo r a flat square wave.

n. Set the square-wave generator fo r a 50-kHz signal.

o. Set the SEC/DIV switch to 10 jus.

p. Check the display for a flat square wave.

q. Adjust C l23 fo r a fla t square wave.

r. Set the VO LTS/D IV switch to 20 and remove the

50 ohm term ination.

s. Set the o utput of the square-wave generator fo r a five kHz, four-division signal.

t. Set the SEC/DIV switch to .1 m.

C126 C123

Vert Gain

R417

1 5 7 3 -1 6

Fig. 5-6. Location of attenuator compensation and Vertical Gain adjustments.

u. Check fo r a fla t square wave.

v. Adjust C l28 fo r a fla t square wave.

w. Set the square-wave generator fo r a 50-kHz signal.

x. Set t h e

SEC/DIV s w itc h t o

10

/Us.

y. Check fo r a fla t square wave.

z. Adjust C126 fo r a square wave that is flat.

14. Check/Adjust Vertical Gain a. Set the V O LT S /D IV switch to 50 m.

b. Set the SEC/DIV switch to .2 m.

c. Set INPUT COUPLING to DC.

d. Connect the standard amplitude calibrator to the 221 oscilloscope. Use a probe tip to BNC adapter.

e. signal.

Set the standard amplitude calibrator fo r a 0.2 volt f Check fo r a display o f four divisions.

g. Adjust R417 fo r a display o f fo ur divisions w ithin

2%. See Fig. 5-6.

h.

Table 5-2).

Check all the VO LTS/D IV switch settings (see

V O L T S /D IV

Setting

2

5

10

20

50

100

5 m

10 m

20 m

50 m

.1

.2

.5

1

Table 5-2

Standard Amplitude

Calibration Setting

20 m Volts

50 m Volts

.1 V o lt

.2 V o lt

.5 V o lt

1 V o lt

2 Volts

5 Volts

10 Volts

20 Volts

50 Volts

100 Volts

100 Volts

100 Volts

Number of

Divisions

4

5

5

4

5

5

5

4

2

1

4

5

5

5

5-8 REV. D, SEPT. 1977

Calibration—221 Service i. Rotate the VO LTS/D IV VAR control to the clock wise position.

16. Check/Adjust Vertical Bandwidth a. Set the VO LTS/DIV switch to .1, the SEC/DIV switch to 1 m and MAG to IX .

j. Check that the display is less than 33% o f the calibrated display. Return VO LTS/DIV VAR to the CAL detent.

b. Connect the constant amplitude signal generator to the 221. Use a GR to BNC adapter, 50-ohm term ination and a probe tip to BNC adapter.

15. Check/Adjust Vertical Step Response a. Set the VO LTS/DIV switch to .1.

c. Set the constant amplitude signal generator to

50 kHz, and adjust the output amplitude o f the constant amplitude signal generator for a deflection of six divisions.

b. Set the SEC/DIV switch to 1 p.

d. Adjust the frequency of the constant amplitude signal generator until 4.2 divisions o f deflection are present on the crt screen.

c. Connect the fast-rise, positive output of the square- wave generator to the 221. Use a GR to BNC adapter, a

50-ohm termination and a probe tip to BNC adapter.

e. Check that the frequency of the constant amplitude signal generator is greater than 5 MHz.

d. Set the square-wave generator to 500 kHz. Adjust the sqaure-wave generator o utput fo r a 5-division display.

e. Set the HORIZ-MAG to 10X.

f. Adjust C432 fo r a deflection of at least 4.2 divisions at 5 MHz. Check display for a clean step response. See step

15.

f. Position the positive-going signal in the center of the graticule, with the top of the square wave visible.

g. Adjust C432 (Bandwidth response) fo r the fastest rise time. See Fig. 5-7.

17. Check Vertical Position Range a. Connect the constant amplitude signal generator to the 221 oscilloscope. Use a GR to BNC adapter and probe tip to BNC adapter.

h. Check aberrations fo r less than +5%, —5%, 5% peak to peak.

b. Set the VO LTS/D IV switch to .1.

i. Adjust C l67 for a fla t top with minimum aberrations

(a slight readjustment o f the C432 might be necessary fo r a fla t top w ith no overshoot). See Fig. 5-6 and Fig. 5-7.

c. Set the constant amplitude signal generator to 50kHz reference, and adjust amplitude controls for a four-division display.

d. Set the VO LTS/DIV to 20 m.

e. Check that the bottom o f the display can be positioned above the graticule center line and that the top of the display can be positioned below the graticule center line.

18. Check Input Noise a. Set the INPUT COUPLING switch to GND.

b. Set the VO LTS/DIV switch to 5 m.

Fig. 5-7. Location of Bandwidth response adjustment.

REV. B, FEB. 1976 5-9

Calibration—221 Service c. Check noise on trace, for less than 0.1 division (adjust

INTENSITY and FOCUS fo r a well-defined trace.

20. Check AC COUPLING a. Connect the 221 oscilloscope to the standard ampli tude calibrator. Use a probe tip to BNC adapter and a

50-ohm BNC cable.

19. Check Gate Leakage a. Set the V O LTS/D IV switch to 5 m.

b. Connect the probe, through a probe tip to BNC adapter, to a 50-ohm termination.

b. Set the amplitude of the standard amplitude cali brator to 100 volts dc.

c. Set the INPUT COUPLING switch to GND, and position the trace to center graticule line.

c. Change INPUT COUPLING switch from GND to AC.

d Check fo r a trace shift of less than 0.1 division.

d. Set the INPUT COUPLING switch to AC.

e. Check that the display remains at graticule center line.


1. Constant amplitude signal generator

2. GR to BNC adapter

Calibration—221 Service

SWEEP TRIG G ER

3. Cable, 50-ohm BNC connectors

4. T Connectors, BNC




Settings.

22. Check/Adjust Auto Preset Triggering a. Set the VO LTS/DIV switch to .1.

b. Set the constant amplitude signal generator for a five-division display 21. Check Trigger Slope a. Connect, to the constant amplitude signal generator, a GR to BNC adapter and a T connector. Use a probe tip to

BNC adapter to connect the signal to the instrument.

Connect the 50-ohm BNC cable to the T connector.

Connect this cable to the EXT TRIG , using a dual banana plug adapter (GND on adapter to COMMON).

b. Set the INPUT COUPLING switch to DC.

c. Set the SEC/DIV switch to 5 /i.

c. Set the SEC/DIV to 5 0 n and the LEVEL/SLOPE to

AUTO-PRESET.

d. Set the VO LTS/DIV switch to 1.

e. Check that the display remains triggered (stable).

f. Adjust the AUTO PRESET (R214) side panel screw driver adjustment fo r a triggered display. See Fig. 5-9.

d. Set the frequency of the constant amplitude signal generator to 50 kHz.

g. Switch TRIGGER selector to EXT.

h. Check that the display is stable.

i. Set the SEC/DIV switch to 1 ju.

e. Set the vertical deflection factor fo r a signal greater than 6 divisions.

f. Vary the LEVEL/SLOPE control to trigger on the positive slope o f the display, then the negative slope.

j. Change frequency of constant amplitude signal generator to 5 MHz.

g. Check that the display is triggered from the top graticule line to the bottom graticule line.

k. Check that the display remains stable (slight adjust ment of AUTO PRESET adjustment o f R214 may be necessary).

® i

REV. APR 1974 5-11



1. BNC to dual banana plug adapter


H O R IZO N TA L SYSTEM

3. Three inch screwdriver

4. Time mark generator

5. Standard amplitude calibrator



Settings.

f. Adjust Horizontal Gain adjustment R505 for a five-division display. See Fig. 5-8.

23. Check/Adjust Horizontal Gain a. Preset the controls as given in the Preliminary Control

Settings.

g. Disconnect all the test equipment.

24. Check/Adjust Horizontal Magnifier Registration a. Position the spot to the center of the crt graticule.

b. Set the HORIZ-MAG switch to the 10X position.

b. Set the SEC/DIV switch to the 1 volt position.

c. Check that the spot remains w ithin one division of graticule center.

c. Connect the standard amplitude calibrator to the

HORIZ INPUT. Use a BNC cable w ith a dual banana plug adapter (GND plug to COMMON).

d. Set the standard amplitude calibrator amplitude for a

5 volt signal.

e. Check for a five-division display.

d. Adjust the Mag Regis adjustment R433 fo r less than one division shift from the I X to the 10X position. See

Fig. 5-8.

25. Check Horizontal Bandwidth a. Set the SEC/DIV switch to 1 V.

b. Set INPUT COUPLING to GND.

c. Connect the constant amplitude signal generator to the HORIZ INPUT jack. Use a dual banana plug to BNC adapter (GND adapter to COMMON), a 50-ohm cable and a

GR to BNC adapter

Fig. 5-8. Location of Horizontal Gain and Magnifier Registration adjustments.

5-12

REV. APR 1974 d. Set the constant amplitude signal generator to

50-kHz reference. Adjust the output of the constant amplitude signal generator for six divisions of horizontal display.

®1

Calibration—221 Service j. Set the time mark generator for 1 /is time marks.

e. Increase the frequency of the constant amplitude signal generator to 500 kHz w ith o u t changing the signal amplitude.

k. Check that the time marks align w ith the graticule

(disregard the first 0.5 /is o f the display).

f. Check for a display greater than 4.2 divisions.

g. Set the HORIZ-MAG switch 10X and repeat steps d through f.

I. Adjust C354 so that the time marks align w ith the center eight graticule lines. See Fig. 5-9.

m. Set HORIZ MAG to 10X.

26. Check/Adjust Sweep Cal (Timing) a. Set the HORIZ MAG to IX .

n. Set time mark generator for 1 /is time marks.

b. Set the INPUT COUPLING to DC.

c. Connect the probe to the output of the time mark generator (TG 501) using a probe tip to BNC adapter and a

50-ohm termination.

o. Check that the time marks align w ith the center eight divisions of the graticule w ithin 5% (disregard first .5 /is of sweep) d. Set the SEC/DIV switch to 2 m.

27. Check Horizontal Position Range a. Set the HORIZ MAG switch to 10X.

e. Set the time mark generator (TG 501) for 2 m illi second time marks.

b. Check that the right and left ends of trace can be positioned to center of screen.

f. Check that the time marks align w ith the graticule lines over the center eight divisions.

c. Disconnect all test equipment.

g. Adjust the SWP CAL adjustment R354 so that the time marks align with the center eight graticule lines. See

Fig. 5-9.

h. Check all other ranges o f tim ing w ithin 3%. Use appropriate settings on the time mark generator.

i. Set the SEC/DIV to 1 /is.

Fig. 5-9. Location of Sweep Cal and Auto Preset adjustments.

REV. B, FEB. 1977 5-13

Section 6—221 Service

TROUBLESHOOTING AIDS

Diagrams

Complete circuit diagrams are given in the rear of this manual. The component number and electrical value of each component in this instrument both appear on the diagrams. The portions of the circuit that are mounted on circuit boards are enclosed with lines.

Figure 6-1 shows the location of the circuit boards within the instrument along w ith their assembly (A) numbers. The assembly numbers are also used on the diagrams to aid in locating the boards. Circuit board layouts are shown in the Diagrams section, on the back of the page opposite the circuit diagram, to aid in cross-referencing between the diagrams and the circuit board. Each electrical component on the boards is identified by its circuit number. The components are listed in the table near the circuit board layouts. To find a component, locate it in the component list, and note the coordinates listed w ith it.

Locate the coordinates on the layout, and the component is located w ithin this area.

POWER

A4

A1 INPUT

TRIGGER/SWEEP

Troubleshooting Equipment

The m ajority of troubleshooting to be done on the 221 can be accomplished w ith a 20,000 ohms/volt VOM such as a T rip lett Model 230-NA or a Simpson Model 262. Use a dynamic semiconductor tester, such as a Tektronix Type

577 Curve Tracer system, to check the semiconductors used in the 221. To check waveforms in this instrument, use a test oscilloscope with a dc to five megahertz frequency response and one m illivo lt to 50 volts/division deflection factor.

A2

PREAMPLIFIER

A3

AMPLIFIER

Fig. 6-1. Location of circuit boards in the 221 Oscilloscope.

6-1

Troubleshooting Aids—221 Service

Ceramic

Capacitors:

Dipped Tantalum

Electroiytics:

Resistor and Capacitor Color Code

Color

Silver

Gold

Black

Brown

Red

Orange

Yellow

Green

Blue

Violet

Gray

White

(none)

Figures

_______

—

—

0

1

2

3

4

5

6

7

8

9

Multiplier Tolerance

Resistors Capacitors Resistors Capacitors i a 3

10”1

___

—

±10%

±5%

1

10

102

103

104

10s

—

10‘

—

—

—

—

106

—

1

10

10"

103

104

105

10”2

10”'

—

±1%

—

—

±2%

±3%

±4%

±0.5%

—

—

±20%

—

±20% or

2 pF*

± 1% or

0.1 p F *

±2%

±3%

+ 100%

-9 %

±5% or

0.5 pF*

—

—

+80%

-2 0 % or 0.25 pF*

±10% or

1 pF*

± 10% or

1 pF*

Voltage

Rating**

—

4 VDC

6 VDC

10 VDC

15 VDC

20 VDC

25 VDC

35 VDC

50 VDC

—

3 VDC

—

•For capacitance of 10 pF or less.

•For dipped tantalum capacitors only.

^ 1) ^ 2) a n d —1 st, 2 n d , a nd 3 rd s ig n ific a n t fig u re s:

® —m u ltip lie r ; ( j f ) —to le ra n c e :

^ —te m p e ra tu re c o e ffic ie n t:

( ? ) —p o la r ity a nd vo lta g e ra tin g .

N O T E :

(7) a n d /o r @ c o lo r co d e f o r c a p a c ito rs d epends u p o n m a n u fa c tu re r a nd c a p a c ito r ty p e . M a y n o t be p re sen t in som e cases.

Fig. 6-2. Color code for resistors, ceramic capacitors, and dip tantalum electrolytic capacitors.

Component Color Coding

The resistors used in the 221 are either composition resistors or precision resistors. The resistance values are color-coded on the components w ith El A color-code (some precision resistors may have the value printed on the body).

The color-code is read starting w ith the stripe nearest the end of the resistor. Composition resistors have four stripes that consist of tw o significant figures, a m ultiplier, and a tolerance value (see Fig. 6-2). Precision resistors have five stripes consisting of three significant figures, a m ultiplier, and a tolerance value.

Isolating Trouble To A Circuit

To isolate the trouble to a particular circuit, note the trouble symptom. The symptom often identifies the circuit in which the trouble is located. For example, no intensity indicates that the crt circuit is probably at fault. When trouble symptoms appear check the circuit by taking voltage and waveform measurments. Typical voltages and waveforms are shown on the schematics in the diagram section o f this manual Figure 6-3 provides a guide for locating a defective circuit.

The capacitance value o f common disc capacitors and small tubular electroiytics is marked in microfarads on the side of the component body. The molded electrolytic capacitors are color-coded in picofarads (see Fig. 6-2)

Start from the top o f the chart and perform the given checks on the left side o f the page. When a check is performed that does not produce the indicated results, further checks and/or circuits in which the trouble is probably located are listed to the right of this step. A fter the defective circuit has been located, proceed to locate the defective component(s).

The cathode end of each glass-encased diode is indicated by a stripe, a series o f stripes, or a dot.

6-2

Troubleshooting Aids—221 Service

TURN INSTRUMENT ON. _____ LOW OR

CHECK CHARGE INDICATOR RECHARGE

FULL

TURN INSTRUMENT OFF.

CONNECT INSTRUMENT

TO LINE SOURCE, TURN

INSTRUMENT ON. CHECK

CHARGE INDICATOR

LOW OR

RECHARGE

CHECK POWER SOURCE,

LINE FUSE, LINE

CORD, POWER SWITCH,

BATTERIES CHARGER

CIRCUIT AND POWER

INVERTER CIRCUIT

FULL

CHECK POWER

SUPPLIES FOR

CORRECT LEVEL

OUT OF

TOLERANCE

ADJUST LOW

VOLTAGE

SUPPLY (10V)

CHECK 10 VOLT SUPPLY,

GROUND REFERENCE

OUT OF ______ CIRCUIT, +5V REGULATOR

TOLERANCE HIGH VOLTAGE INVERTER

CIRCUIT (+48V, +75V

AND 1 kV SUPPLY)

WITHIN TOLERANCE

MIDRANGE HORIZONTAL

AND VERTICAL POSITION

CONTROLS. SET TRIGGER

TO AUTO PRESET, INT.

NO TRACE

NO TRACE

CHECKTRIGGER CIRCUITS

CHECK VERTICAL AND

HORIZONTAL AMPLIFIER

OUTPUT VOLTAGE LEVELS

CHECK BLANKING

CIRCUIT

SPOT ONLY ----------------

CHECK HORIZONTAL

AND SWEEP

CIRCUITS

TRACE APPEARS

CHECK VERTICAL AND

HORIZONTAL POSITIONING

NO VERTICAL

POSITIONING

NO HORIZONTAL

POSITIONING

CHECK VERTICAL

DEFLECTION CIRCUITS

CHECK HORIZONTAL

DEFLECTION CIRCUIT

POSITIONING

CHECK VERTICAI________________INCORRECT GAIN

GAIN ADJUST VERT GAIN

CHECK VERTICAL

DEFLECTION CIRCUITS

CHECK TRIGGERS---------------------- CHECK SWEEP TIM ING ---------------------- ADJUST SWP CAL

Fig. 6-3. Circuit Isolation Troubleshooting Chart.

REV. APR 1974

6-3

Section 7—221 Service

CORRECTIVE MAINTENANCE

Obtaining Replacement Parts

Standard Parts. A ll electrical and mechanical part replacements for the 221 can be obtained through your local Tektronix Field Office or representative. Many of the standard electronic components, however, can be obtained locally in less time than is required to order them from

Tektronix, Inc. Before purchasing or ordering replacement parts, check the parts list for value, tolerance, rating and description.

If it is necessary to have access to the fro n t of the Input circuit board, remove the knobs from all of the external control shafts. Remove the tw o screws securing the instru ment side panel to the Input circuit board and remove the instrument side panel.

W A R N I N G I

Disconnect the instrument from any external power source before replacing components.

NOTE

When selecting replacement parts, remember that the physical size and shape o f a component may affect its performance in the instrument. A ll replacement parts should be a direct replacement unless a different component is known to n o t adversely affect the instrument's performance.

Special parts. In addition to the standard electronic components, some special components are used in the 221.

These components are manufactured or selected by

Tektronix, Inc. to meet specific requirements, or are manufactured for T ektronix, Inc. in accordance with our specifications. Most of the mechanical parts used in this instrument have been manufactured by Tektronix, Inc.

Order all special parts directly from your local Tektronix

Field Office or representative.

Ordering Parts. When ordering replacement parts from

Tektronix, Inc., include the following inform ation:

1. Instrument type.

2. Instrument serial number.

3. A description of the part (if electrical, include circuit number).

4. Tektronix Part Number.

Component Replacement

Disassembly. To gain access to the interior o f the instrument, unwind both the power cord and the attached probe cord from the rear o f the instrument. Remove the five screws in the bottom cover of the instrument. See Fig. 7-1.

Gently separate the bottom cover from the instrument and lay aside. The Power Supply circuit board with the batteries

(can be lifted up and pivoted out of the way. Most of the in ternal workings of the instrument are now accessible.

REV. APR

1 9 7 4

Fig. 7-1. Location of circuit boards and securing screws.

7-1

Corrective Maintenance—221 Service

Circuit Board Replacement. If a circuit board is damaged beyond repair, the entire assembly including all soldered on components can be replaced. Part numbers are given in the

Mechanical Parts List for either the completely wired or the unwired board.

NOTE

Even though unwired boards are available w itho ut components, use o f the completely wired replace m ent board is recommended due to the large number o f components mounted on most o f the boards.

Recalibration After Repair

A fter any electrical component has been replaced, the calibration of that particular circuit should be checked, as well as the calibration o f other closely related circuits.

Since the power supply affects all circuits, calibration of the entire instrument should be checked if work has been done in the supply.

Transistor Replacement. Transistors should not be re placed unless actually defective. If removed from their sockets during routine maintenance, return them to their original sockets. Unnecessary replacement of transistors may affect the calibration of this instrument. When tran sistors are replaced, check the operation of that part o f the instrument which may be affected.

Replacement transistors should be of the original type or a direct replacement. Fig. 3-2 shows the lead configuration o f the transistors used in this instrument. Some plastic case transistors have lead configurations which do not agree with those shown here. If a transistor is replaced by a transistor which is made by a different manufacturer than the original, check the manufacturer's basing diagram for correct basing.

All transistor sockets in this instrument are wired fo r the basing used for metal-case transistors.

REPACKAGING FOR SHIPM EN T

If the Tektronix instrum ent is to be shipped to a Tektronix

Service Center for service or repair, attach a tag showing: owner (with address) and the name of an individual at your firm that can be contacted, complete instrum ent serial number and a description of the service required.

Save and re-use the package in w hich your instrum ent was shipped. If the original packaging is unfit for use or not available, repackage the instrum ent as follows:

1 Obtain a carton of corrugated cardboard having inside dimensions of no less than six inches more than the instrum ent dimensions; this w ill allow for cushioning.

Refer to the follow ing table for carton test strength requirements.

2. Surround the instrum ent w ith polyethylene sheeting to protect the finish of the instrument.

3. Cushion the instrum ent on all sides by tightly packing dunnage or urethane foam between carton and instru ment, allowing three inches on all sides.

Rotary Switches. Individual parts of the VO LTS/DIV and SEC/DIV rotary switches are replaceable. Refer to the

Parts List for the applicable part numbers for replacement parts.

4. Seal carton w ith shipping tape or industrial stapler.

Troubleshooting Aids

C ircuit board extenders are available to allow trouble shooting boards with power applied. Order Tektronix Part

No. 067-0760-00 for Power Supply board extender, and

067-0761-00 for Am plifier board extender

S H IP P IN G C A R T O N T E S T S TR E N G TH

Gross W eig h t (lb)

0 -1 0

10-30

30-120

120-140

140-160

Carton Test Strength (lb)

200

275

375

500

600

7-2

REV D, AUG. 1976

REV C, FEB 1979

REPLACEABLE

ELECTRICAL PARTS

PARTS ORDERING IN FO RM A TIO N

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

00X

Part first added at this serial number

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.

ACTR

ASSY

CAP

CER

CKT

ACTUATOR

ASSEMBLY

CAPACITOR

CERAMIC

CIRCUIT

COMP

CONN

ELCTLT

ELEC

COMPOSITION

CONNECTOR

ELECTROLYTIC

ELECTRICAL

INCAND INCANDESCENT

LED LIGHT EMITTING DIODE

NONWIR NON WIREWOUND

ABBREVIATIONS

PLSTC

QTZ

RECP

RES

PLASTIC

QUARTZ

RECEPTACLE

RESISTOR

RF

SEL

RADIO FREQUENCY

SELECTED

SEMICOND SEMICONDUCTOR

SENS

VAR

SENSITIVE

VARIABLE

WW

XFMR

XTAL

WIREWOUND

TRANSFORMER

CRYSTAL


8-1

Replaceable Electrical Parts—221 Service

CROSS INDEX— MFR. CODE NUMBER TO MANUFACTURER

Mfr Code

00853

01121

01295

04713

07263

14552

14936

19396

32293

32997

51642

56289

71450

72982

73138

75915

76493

78488

79727

80009

80031

90201

91637

Manufacturer Address City, State, Zip

SANGAMO ELECTRIC CO., S. CAROLINA DIV.

ALLEN-BRADLEY COMPANY

P 0 BOX 128

1201 2ND STREET SOUTH

PICKENS, SC 29671

MILWAUKEE, WI 53204

TEXAS INSTRUMENTS, INC., SEMICONDUCTOR

GROUP

P 0 BOX 5012, 13500 N CENTRAL

EXPRESSWAY DALLAS, TX 75222

MOTOROLA, INC., SEMICONDUCTOR PROD. DIV.

5005 E MCDOWELL RD,PO BOX 20923 PHOENIX, AZ 85036

FAIRCHILD SEMICONDUCTOR, A DIV. OF

FAIRCHILD CAMERA AND INSTRUMENT CORP.

MICRO SEMICONDUCTOR CORP.

GENERAL INSTRUMENT CORP., SEMICONDUCTOR

464 ELLIS STREET

2830 F FAIRVIEW ST

MOUNTAIN VIEW, CA 94042

SANTA ANA, CA 92704

PRODUCTS GROUP P.O. BOX 600,600 W. JOHN ST.

HICKSVILLE, NY 11802

ILLINOIS TOOL WORKS, INC PAKTRON DIV.

INTERSIL, INC.

BOURNS, INC., TRIMPOT PRODUCTS DIV.

CENTRE ENGINEERING INC.

SPRAGUE ELECTRIC CO.

CTS CORP.

ERIE TECHNOLOGICAL PRODUCTS, INC.

BECKMAN INSTRUMENTS, INC., HELIPOT DIV

LITTELFUSE, INC.

900 FOLLIN LANE, SE

10900 N TANTAU AVE.

1200 COLUMBIA AVE.

2820 E COLLEGE AVENUE

905 N. WEST BLVD

644 W. 12TH ST.

2500 HARBOR BLVD.

800 E. NORTHWEST HWY

VIENNA, VA 22180

CUPERTINO, CA 95014

RIVERSIDE, CA 92507

STATE COLLEGE, PA 16801

NORTH ADAMS, MA 01247

ELKHART, IN 46514

ERIE, PA 16512

FULLERTON, CA 92634

DES PLAINES, IL 60016

BELL INDUSTRIES, INC.,

MILLER, J. W., DIV.

STACKPOLE CARBON CO.

C-W INDUSTRIES

TEKTRONIX, INC.

ELECTRA-MIDLAND CORP., MEPCO DIV.

MALLORY CAPACITOR CO., DIV. OF

P R. MALLORY AND CO., INC.

DALE ELECTRONICS, INC.

19070 REYES AVE., P 0 BOX 5825 COMPTON, CA 90224

ST. MARYS, PA 15857

550 DAVISVILLE RD ,P 0 BOX 96

P 0 BOX 500

22 COLUMBIA ROAD

3029 E. WASHINGTON STREET

P 0 BOX 372

P. 0.. BOX 609

WARMINISTER, PA 18974

BEAVERTON, OR 97077

MORRISTOWN, NJ 07960

INDIANAPOLIS, IN 46206

COLUMBUS, NE 68601

8-2 REV F JAN 1980


Ckt No.

Tektronix

Part No.

Serial/M odel No

Eft Dscont Name

&

Description

C100 c m

C120

C121

C122

C123

C124

C125

Cl 26

C127

C128

C133

C252

C252

C256

C314

C316

C324

C325

C326

C327

C333

C337

C344

C167

C175

C192

C194

C218

C227

C232

C233

C234

C234

C235

A3

A3

A4

A4

A4

A1

A1

A1

A1

A2

A3

BT632|

BT633)

BT632)

BT633)

670-2791-00 B010100 B020517 CKT BOARD ASSY: — INPUT

670-2791-01 B020518 B022748 CKT BOARD ASSY: — INPUT

670-2791-02 B022749 B054450 CKT BOARD ASSY:— INPUT

670-2791-03 B054451 CKT BOARD ASSY:— INPUT

670-2792-00 CKT BOARD ASSY:— PREAMPLIFIER

670-2793-00 B010100 B029999 CKT BOARD ASSY:— AMPLIFIER

670-2793-01 B030000 B054450 CKT BOARD ASSY :— AMPLIFIER

670-2793-02 B054451 CKT BOARD ASSY:— AMPLIFIER

670-2794-00 B010100 B020806 CKT BOARD ASSY:— POWER SUPPLY

670-2794-01 B020807 B039999 CKT BOARD ASSY:— POWER SUPPLY

670-2794-03 B040000 CKT BOARD ASSY:— POWER SUPPLY

146-0034-00 B010100 B023549 BATTERY ASSY:2 SETS OF 5

146-0034-00 B010100 B023549 BATTERY ASSY:2 SETS OF 5

(BT632, BT633, SEE MECHANICAL PARTS LIST

146-0033-00

146-0033-00

B023550

B023550

FOR SUB-PARTS)

BATTERY ASSY:2 SETS OF 5

BATTERY ASSY:2 SETS OF 5

(BT632, BT633, SEE MECHANICAL PARTS LIST

FOR SUB-PARTS)

285-0697-06 B010100 B023548X CAP.,FXD,PLSTC:0.1UF,+5-15%,600V

281-0167-00 CAP.,VAR,CER DI:9-45PF,200V

281-0178-00

283-0637-00

CAP.,VAR,PLSTC:1-3.5PF,500V

CAP.,FXD,MICA D :20PF,2 5%,100V

281-0182-00

281-0178-00

CAP.,VAR,PLSTC:1.8-1OPF,500V


283-0598-00

281-0182-00

281-0178-00

283-0729-00

281-0182-00

283-0204-00

CAP.,FXD,MICA D:253PF,5%,300V

CAP.,VAR,PLSTC:1 8-1OPF,500V


CAP.,FXD,MICA D :2500PF,5%,500V

CAP.,VAR,PLSTC:1 8-10PF.500V

CAP.,FXD,CER DI:0.01UF,20%,50V

283-0095-00

281-0182-00

283-0000-00

290-0530-00

290-0530-00

283-0111-00

CAP ,FXD,CER DI:56PF,10%,200V

CAP.,VAR,PLSTC:1.8-10PF,500V

CAP.,FXD,CER DI:0.001UF,+100-0%,500V

CAP.,FXD,ELCTLT:68UF,20%,6V


CAP ,FXD,CER DI:0.1UF,20%,50V

283-0204-00

283-0643-00

283-0644-00

CAP ,FXD,CER DI:0.01UF,20%,50V

CAP.,FXD,MICA D:22PF.+/-0.5PF,300V


281-0557-00 B010100 B021517 CAP ,FXD,CER DIr1 8PF,10%,500V

281-0604-00 B020518 CAP.,FXD,CER DI:2 2PF,+/-0.25PF,500V

283-0204-00 CAP.,FXD,CER DI:0.01UF,20%,50V

283-0156-00 B010100 B010579 CAP ,FXD,CER DI:1000PF,+100-0%,200V

283-0108-00 B010580 CAP.,FXD,CER DI:220PF,10%,200V

290-0534-00

281-0634-00

CAP ,FXD,ELCTLT:1UF,20%,35V

CAP ,FXD,CER DI:10PF,+/-0.25PF,500V

283-0156-00

283-0168-00 CAP ,FXD,CER DI:12PF,5%,100V

283-0047-00

283-0111-00

285-0862-00

283-0047-00

283-0204-00

283-0251-00





CAP.,FXD,CER DI:87 PF,5%,100V

Mfr

Code Mfr Part Number

80009 670-2791-00

80009 670-2791-01

80009 670-2791-02

80009 670-2791-03

80009 670-2792-00

80009 670-2793-00

80009 670-2793-01

80009 670-2793-02

80009 670-2794-00

80009 670-2794-01

80009 670-2794-03

80009 146-0034-00

80009 146-0034-00

80009 146-0033-00

80009 146-0033-00

80009 285-0697-06

72982 538-011-D 9-45

80031 2805D013R5BH02F0

00853 D151E200D0

80031 2805D1R810BH02F0

80031 2805D013R5BH02F0

00853 D153E2530J0

80031 2805D1R810BH02FO

80031 2805D013R5BH02F0

00853 D19-5E252J0

80031 2805D1R810BH02F0

72982 8121N061Z5U0103M

72982 855-535A560K

80031 2805D1R810BH02FO

72982 831-516E102P

90201 TDC686M006NLF

90201 TDC686M006NLF

72982 8121-N088Z5U104M

72982 8121N061Z5U0103M

00853 D105C220D

00853 D155E151F0

72982 301-000C0K0189B

72982 301-000C0J0229C

72982 8121N061Z5U0103M

72982 8111A208Z5U0102Z

56289 272C13

56289 196D105X0035HA1

72982 374011C0G100C

72982 8111A208Z5U0102Z

72982 8101B121C0G0120J

72982 0831522Z5D00271J

72982 8121-N088Z5U104M

56289 410P10291

72982 0831522Z5D00271J

72982 8121N061Z5U0103M

72982 8121B145C0G0870J

REV J, JAN 1980

8-3


Tektronix Serial/Model No.

Ckt No.

Part No.

Eft Dscont

C351)

C352

C353)

295-0169-00

C354

C355

C356

C362

C363

C364

C365

C417

C422

C423

C432

C432

C433

C435

C436

C447

C456

C458

C462

C466

C512

C516

C517

C523

C534

C535

C542

C544

C545

C548

C556

C557

C571

C572

C573

C612

C613

C614

C615

C616

C617

C618

C622

C622

C623

C623

C632

C633

C634

281-0161-00

283-0674-00

281-0615-00

290-0535-00

290-0535-00

290-0535-00

290-0535-00

281-0618-00

283-0095-00

283-0003-00

281-0212-00 B010100 B044174

281-0202-00 B044175

Name & Description

Mfr


CAP.,SET,MTCHD:1UF,0.01UF,0.001UF,MTCHD 1%

(C351 THRU C353, 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-

)

CAP.,VAR,CER DI

:

5-15PF,350V


CAP.,FXD,CER DI

:

3.9PF,+/-0.5PF,200V

CAP.,FXD.ELCTLT

:

33UF,20%,10V

CAP.,FXD.ELCTLT

:

33UF,20%,10V


80009 295-0169-00

72982

00853

72982

56289

56289

56289

518-000A5-15

D155F850F0

374001C0J0399D

196D336X0010KA1

196D336X0010KA1

196D336X0010KA1

CAP.,FXD,CER DI:4.7PF,+/-0.5PF,200V

CAP.,FXD,CER DI:56PF,10%,200V

CAP.,FXD,CER DI:0.01UF,+80-20%,150V

CAP.,VAR,PLSTC

:

1.5-5.5PF,100V

56289

72982

72982

72982

80031

80031

196D336X0010KA1

374O01C0HO479D

855-535A560K

855-558Z5U-103Z

2807C1406MM02F

2807C1R406MM02F

283-0000-00

283-0003-00

283-0024-00

283-0003-00

283-0348-00

290-0525-00

283-0024-00

283-0348-00

283-0003-00

290-0530-00

283-0003-00

290-0530-00

CAP.,FXD,CER DI:0.001UF,+100-0%,500V

CAP.,FXD,CER DI:0.01UF,+80-20%,150V

CAP.,FXD,CER DI:0.1UF,+80-20%,50V

CAP. ,FXD,CER DI.-0.01UF,+80-20%, 150V


CAP.,FXD,ELCTLT:4.7UF,20%,50V

CAP.,FXD,CER DI:0.1UF,+80-20%,50V


CAP.,FXD,CER DI:0.01UF,+80-20%,150V


CAP.,FXD,CER DI:0.01UF,+80-20%,150V


290-0517-00

283-0024-00

283-0110-00

283-0110-00

283-0348-00

283-0317-00


CAP.,FXD,CER DI:0.1UF,+80-20%,50V

CAP.,FXD,CER DI:0.005UF,+80-20%,150V

CAP.,FXD,CER DI:0.005UF,+80-20%,150V


CAP.,FXD,CER DI:1PF,+/-0.1PF,500V

283-0317-00

290-0525-00

290-0530-00

283-0024-00

290-0530-00

283-0002-00



CAP.,FXD,CER DI:0.1UF,+80-20%,50V

CAP.,FXD,CER DI:0.01UF,+80-20%,500V

283-0279-00

283-0279-00

283-0002-00

283-0000-00

290-0652-00

283-0008-00 XB020680

CAP.,FXD,CER DI:0.001UF,20%,3000V

CAP.,FXD,CER DI:0.001UF,20%,3000V

CAP.,FXD,CER DI:0.01UF,+80-20%,500V

CAP.,FXD,CER DI:0.001UF,+100-0%,500V

CAP.,FXD,ELCTLT:5UF,+50-10%,450V


283-0156-00 B010100 B020806 CAP.,FXD,CER DI:1000PF,+100-0%,200V

283-0204-00 B020807 CAP.,FXD,CER DI:0.01UF,20%,50V

283-0627-00 B010100 B020806 CAP.,FXD,MICA D :0.0033UF,5%,500V

285-1095-00 B020807 CAP.,FXD,PLSTC:3300PF,10%,400V

290-0519-00 CAP.,FXD,ELCTLT:100UF,20%,20V

283-0204-00 XB020680 CAP.,FXD,CER DI:0.01UF,20%,50V

290-0535-00 B010100 B039999 CAP.,FXD.ELCTLT:33UF,20%,10V 56289 196D336X0010KA1

72982

72982

72982

72982

51642

56289

831-516E102P

855-558Z5U-103Z

8121N083Z5U0104Z

855-558Z5U-103Z

100-100-NPO-508B

196D475X0050KA1

72982

51642

72982

90201

72982

90201

8121N083Z5U0104Z

100-100-NP0-508B

855-558Z5U-103Z

TDC686M006NLF

855-558Z5U-103Z

TDC686M006NLF

56289

72982

56289

56289

51642

72982

196D685X0035KA1

8121N083Z5U0104Z

19C242B

19C242B

100-100-NPO-508B

861-518-C0K0109B

72982

56289

90201

72982

90201

72982

861-518-C0K0109B

196D475X0050KA1

TDC686M006NLF

8121N083Z5U0104Z

TDC686M006NLF

811-546E103Z

56289

56289

72982

72982

56289

56289

55C153

55C153

811-546E103Z

831-516E102P

30D501

275C8

72982

72982

00853

19396

90201

72982

8111A208Z5U0102Z

8121N061Z5U0103M

D195E332J0

332K06PP481

TDC107M020WLD

8121N061Z5U0103M

8-4 REV H, JAN 1980


C736

C737

C737

C738

C738

C739

C752

C753

CR132

CR137

CR162

CR165

CR175

CR176

CR215

CR228

CR232

CR317

CR318

CR328

CR454

CR455

CR462

CR467

CR468

CR469

CR470

CR522

CR525

CR532

CR533

CR535

Ckt No.

C634

C644

C647

C656

C657

C662

Tektronix

Part No.

Serial/Model No.

Eff

290-0519-00 B040000

290-0534-00

290-0524-00

290-0535-00

290-0535-00

283-0111-00

Dscont

C663

C666

C667

C668

C712

C713

C714

C715

C731

C732

C733

C734

283-0104-00

290-0574-00

283-0156-00 XB020680

283-0087-00

290-0525-00

290-0525-00

290-0525-00

290-0525-00

290-0534-00

283-0002-00

283-0013-00

283-0013-00

CR345

CR422

CR423

CR434

CR435

CR453

Name

&

Description

CAP. ,FXD,ELCTLT: 100UF,20%,20V


CAP.,FXD,ELCTLT;33UF,20% ,10V


CAP.,FXD,CER DI:2000PF,5%,500V


CAP.,FXD,CER DI:1000PF,+100-0%,200V

CAP.,FXD,CER DI;300PF,10%,1000V

CAP.,FXD,ELCTLT;4.7UF,20%,50V

CAP.,FXD,ELCTLT;4.7UF,20%,50V


152-0246-00

152-0141-02

152-0141-02

152-0141-02

152-0141-02

152-0141-02

CAP.,FXD,ELCTLT;1UF,20%,35V

CAP.,FXD,CER DI:0.01UF,+80-20%,500V

CAP.,FXD,CER DI:0.01UF,+100-0%,1000V

CAP.,FXD,CER DI:0.01UF,+100-0%,1000V

283-0013-00

283-0002-00

CAP.,FXD,CER DI:0.01UF,+100-0%,1000V

CAP.,FXD,CER DI:0.010F,+80-20%,500V

283-0005-00 B010100 B020679 CAP.,FXD,CER DIsO.OlUF,+100-0%,250V

283-0002-00 B020680 CAP.,FXD,CER DI:0.01UF,+80-20%,500V

283-0005-00 B010100 B020679 CAP.,FXD,CER DI:0.01UF,+100-0%,250V

283-0002-00 B020680 CAP.,FXD,CER DI;0.01UF,+80-20%,500V

283-0022-00

283-0003-00

283-0003-00

CAP.,FXD,CER DI:0.02UF,1400VDCAC

CAP.,FXD,CER DI:0.01UF,+80-20%,150V

CAP.,FXD,CER DI;0.01UF,+80-20%,150V

SEMICOND DEVICE:SILICON,40V,200MA

SEMICOND DEVICE:SILICON,30V,50NA






SEMICOND DEVICE;SILICON,30V,50NA


SEMICOND DEVICE:GERMANIUM,IMA,5PF


SEMICOND DEVICE:SILICON,30V.50NA

152-0141-02

152-0141-02

152-0141-02

152-0181-00

152-0141-02

152-0141-02

152-0141-02

152-0141-02

152-0141-02

152-0141-02

152-0141-02

152-0322-00

152-0322-00

152-0141-02

152-0322-00

152-0322-00

152-0141-02

152-0333-00 XB030000






SEMICOND DEVICE:SILICON,15V,HOT CARRIER







152-0333-00 XB030000

152-0322-00

152-0141-02

152-0141-02

152-0141-02

152-0322-00




SEMICOND DEVICE;SILICON,30V,50NA



Mfr


90201 TDC107M020WLD

56289 196D105X0035HA1

90201 TDC475M010EL

56289 196D336X0010KA1

56289 196D336X0010KA1

72982 8121-N088Z5U104M

72982 811-565B202J

90201 TDC476K020CL

72982 8111A208Z5U0102Z

56289 403637

56289 196D475X0050KA1

56289 196D475X0050KA1

56289 196D475X0050KA1

56289 196D475X0050KA1

56289 196D105X0035HA1

72982 811-546E103Z

56289 33C29A7

56289 33C29A7

56289 33C29A7

72982 811-546E103Z

72982 8131N300Z5U0103P

72982 811-546E103Z

72982 8131N300Z5U0103P

72982 811-546E103Z

80009 283-0022-00

72982 855-558Z5U-103Z

72982 855-558Z5U-103Z

80009 152-0246-00

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0181-00

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0322-00

80009 J 52-0322-00

80009 152-0141-02

80009 152-0322-00

80009 152-0322-00

80009 152-0141-02

80009 152-0333-00

80009 152-0333-00

80009 152-0322-00

80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0322-00

REV I, JAN 1980 8-5


F610

F630

J232

J233

LI 12

LI 14

L192

L194

L237

L571

L573

L610

L626

L632

L713

L716

L751

CR632

CR633

CR634

CR634

CR654

CR712

CR713

CR715

CR716

CR733

CR733

CR734

CR734

CR735

CR735

CR736

CR736

Ckt No.

CR536

CR556

CR557

CR612

CR613

CR614

Tektronix

Part No.

152-0141-02

152-0141-02

152-0141-02

152-0107-00

152-0107-00

152-0107-00

Serial/Model No.

Eft Dscont

CR615

CR621

CR622

CR623

CR623

CR624

CR625

CR625

CR626

CR626

CR627

CR628

152-0107-00

152-0107-00

152-0401-00

152-0107-00

152-0400-00

152-0414-00

B010100

B010170

B010169

152-0414-00 B010100 B020679

152-0413-00 B020680

152-0107-00 B010100 B010169

152-0400-00 B010170

152-0107-04 XB020475

152-0107-04 XB020475

152-0400-00

152-0400-00

152-0502-00 B010100 B020679

152-0582-00 B020680

152-0141-02

152-0107-00

152-0107-00

152-0107-00

152-0107-00

152-0040-00

152-0586-00

152-0040-00

152-0586-00

152-0040-00

152-0586-00

152-0040-00

152-0586-00

152-0233-00

Name

&

Description








B010100 B020679

B020680


SEMICOND DEVICE:SILICON,600V,1A


B010100 B020679 SEMICOND DEVICE:SILICON,600V,1A

B020680

B010100 B020679

B020680

B010100 B020679

B020680



SEMICOND DEVICE:SILICON,3-LAYER,TRIGGER



SEMICOND DEVICE:SILICON,200V,0.75A




SEMICOND DEVICE:SILICON,400V,400MA,SEL

SEMICOND DEVICE:SILICON,400V,400MA,SEL









SEMICOND DEVICE:SILICON ,600V,500MA




M676

M676

159-0080-00

159-0124-00 XB020680

FUSE,CARTRIDGE:0.2A ,250V,SLOW BLOW

FUSE,WIRE LEAD:3A,125V

129-0312-00

129-0312-00

276-0596-00

276-0507-00

120-0382-00

120-0382-00

108-0526-00

120-0382-00

POST,CONTACT:HORIZONTAL INPUT & GROUND

POST,CONTACT:HORIZONTAL INPUT & GROUND

CORE,TOROID,FER:0.09 ID X 0.19 OD X 0.08"H

SHIELDING BEAD,:0.6UH

XFMR,TOROID:14 TURNS,SINGLE


COIL.RF:50UH


120-0382-00

120-0738-00

108-0816-00 XB020807

108-0574-00

108-0240-00

108-0240-00

149-0031-01

149-0044-03


COIL,RF:4.35MHZ

COIL.RF:30UH

COIL.RF:FIXED,820UH

COIL.RF:FIXED,820UH

(FURNISHED AS A UNIT WITH V740, TRACE

ROTATOR COIL)

B010100 B022748 METER,ELEC FREQ:0-200VA,+/-15Z

B022749 METER.BAT LEVEL:W/CONN AND INS SLEEVE

Mfr


80009 152-0141-02

80009 152-0141-02

80009 152-0141-02

80009 152-0107-00

80009 152-0107-00

80009 152-0107-00

80009 152-0107-00

80009 152-0107-00

04713 SPT32K

80009 152-0107-00

80009 152-0400-00

80009 152-0414-00

80009 152-0414-00

80009 152-0413-00

80009 152-0107-00

80009 152-0400-00

80009 152-0107-04

80009 152-0107-04

80009 152-0400-00

80009 152-0400-00

04713 1N5823

80009 152-0582-00

80009 152-0141-02

80009 152-0107-00

80009 152-0107-00

80009 152-0107-00

80009 152-0107-00

80009 152-0040-00

14936 RGP10J

80009 152-0040-00

14936 RGP10J

80009 152-0040-00

14936 RGP10J

80009 152-0040-00

14936 RGPlOJ

80009 152-0233-00

75915 213.200

75915 272003

80009 129-0312-00

80009 129-0312-00

78488 57-1657

78488 57-0180-7D 500B

80009 120-0382-00

80009 120-0382-00

80009 108-0526-00

80009 120-0382-00

80009 120-0382-00

80009 120-0738-00

80009 108-0816-00

80009 108-0574-00

76493 B5147

76493 B5147

80009 149-0031-01

80009 149-0044-03

8-6

REV J, JAN 1980


Ckt No.

Tektronix

Part No.

Serial/Model No.

Eff Dscont Name

&

Description

Q132A.B

151-1057-00

Q136A.B

153-0612-00 B010100 B010249 TRANSISTOR:SILICON,VBE.MATCHED

Q136A.B

153-0612-01 B010250

TRANSISTOR:SILICON,VBE,MATCHED

Q162A.B

151-0353-00

Q164 151-0220-00

Q172A.B

151-0232-00

TRANSISTOR:SILICON,NPN

TRANSISTOR:SILICON,PNP

TRANSISTOR:SILICON,NPN,DUAL

Q212

Q214

Q216

Q218

Q222

Q226

151-0342-00

151-0341-00

151-0341-00

151-0341-00

151-0342-00

151-0220-00







Q232A,B

Q234

Q236

151-1054-00 TRANSISTOR:SILICON,JFE,N-CHANNEL,DUAL

151-0220-00 TRANSISTOR:SILICON,PNP

151-0190-00 BO B010579 TRANSISTOR:SILICON,NPN

Q236 151-0188-00 B010580 TRANSISTOR:SILICON,PNP

Q242

Q244

151-0190-00 B010100 B010169X TRANSISTOR:SILICON,NPN

151-0367-00 B010100 B020849 TRANSISTOR

:

SILICON,NPN,SEL FROM 3571TP

Q244

Q246

Q246

Q252

Q254

Q256

Q312

Q316

Q322

Q322

Q324

Q324

151-0333-00 B020850 TRANSISTOR:SILICON,NPN,SEL FROM MPS918

151-0367-00 B010100 B020849 TRANSISTOR:SILICON,NPN,SEL FROM 3571TP


151-0342-00

151-0341-00

151-0342-00


TRANSISTOR

:

SILICON,NPN


151-0188-00

151-0188-00

TRANSISTOR

:

SILICON,PNP

TRANSISTOR

:

SILICON,PNP

151-0367-00 B010100 B020849 TRANSISTOR

:



151-0367-00 B010100 B020849 TRANSISTOR

:



Q326

Q328

Q330

Q330

Q334

151-0190-00

151-0221-00 TRANSISTOR

:

SILICON,PNP

151-0367-00 B010100 B020849 TRANSISTOR

:


151-0333-00 B020850

151-0341-00

151-0452-00

Q336A.B

151-1054-00

Q338

Q340

Q342

151-0341-00

151-0341-00

151-0220-00

Q422A.B

151-0353-00

Q424 151-0220-00

Q426A.B

151-0232-00

Q432 151-0333-00

Q442A.B

151-0353-00

Q452 151-0452-00

Q456

Q464

151-0452-00

151-0452-00

Q466

Q502

Q516

Q518

Q522

Q526

151-0452-00

151-0192-00

151-0192-00

151-1066-00

151-0192-00

151-0192-00


TRANSISTOR:SILICON,NPN,SEL FROM MPS918



TRANSISTOR:SILICON,JFE,N-CHANNEL,DUAL






TRANSISTOR:SILICON,NPN,DUAL









TRANSISTOR:SILICON,FE.P-CHANNEL



Q532

Q542

Q544

151-0410-00

151-0432-00

151-0453-00




Mfr


80009 151-1057-00

80009 153-0612-00

80009 153-0612-01

32293 ITS1251

80009 151-0220-00

80009 151-0232-00

80009 151-0342-00

80009 151-0341-00

80009 151-0341-00

80009 151-0341-00

80009 151-0342-00

80009 151-0220-00

80009 151-1054-00

80009 151-0220-00

07263 S032677

80009 151-0188-00

07263 S032677

80009 151-0367-00

04713 SPS1752

80009 151-0367-00

04713 SPS1752

80009 151-0342-00

80009 151-0341-00

80009 151-0342-00

80009 151-0188-00

80009 151-0188-00

80009 151-0367-00

04713 SPS1752

80009 151-0367-00

04713 SPS1752

07263 S032677

80009 151-0221-00

80009 151-0367-00

04713 SPS1752

80009 151-0341-00

80009 151-0452-00

80009 151-1054-00

80009 151-0341-00

80009 151-0341-00

80009 151-0220-00

32293 ITS

80009 151-0220-00

80009 151-0232-00

04713 SPS1752

32293 ITS1251

80009 151-0452-00

80009 151-0452-00

80009 151-0452-00

80009 151-0452-00

04713 SPS8801

04713 SPS8801

80009 151-1066-00

04713 SPS8801

04713 SPS8801

80009 151-0410-00

80009 151-0432-00

80009 151-0453-00

REV G, JAN 1980 8-7


R100

R112

R114

R120

R121

R123

R124

R126

R127

R133

R134

R134

R135

R135

R136

R137

R143

R144

R145

R146

R147

R153

R154

R155

R156

R162

R164

R165

R166

R167

R173

R174

R175

R176

Q626

Q626

Q626

Q634

Q640

Q642

Q644

Q646

Q648

Q660

Q662

Q664

Ckt No.

Q552

Q554

Q556

Q622

Q622

Q622

Tektronix

Part No.

Serial/Model No.

Eff Dscont Name

&

Description

151-0432-00

151-0432-00

151-0432-00

151-0423-00 B010100 B010169

153-0626-00 B010170 B020474





TRANSISTOR:SILICON,NPN,SEL

151-0423-00 B020475 TRANSISTOR:SILICON,NPN

151-0423-00

153-0626-00

151-0423-00

151-0341-00

151-0341-00

151-0410-00

B010100 B010169 TRANSISTOR:SILICON,NPN

B010170 B020474 TRANSISTOR:SILICON,NPN,SEL

B020475 TRANSISTOR:SILICON,NPN




151-0410-00

151-0342-00

151-0302-00

151-0341-00

151-0342-00

151-1022-00






TRANSISTOR:SILICON,JFE,SEL FROM 2N4392

Q666

Q668

Q666)

Q668)

Q754

151-0324-00

151-0324-00

153-0627-00

151-0432-00

B010100 B020679

B010100 B020679

B020680



SEMICOND DVC SE:SILICON,PNP,MATCHED PAIR


315-0101-00

315-0204-00

321-0646-00

321-0624-00

321-0318-02

321-0646-00

321-0222-01

321-0646-00

321-0126-01

321-0159-00

321-0158-00

321-0157-00

311-1007-00

311-0643-00

321-0254-00

321-0766-06

321-0661-00

321-0808-03

321-1121-01

321-0704-00

321-0704-00

321-0140-00

321-1087-01

321-0125-00

321-0928-07

321-0212-00

315-0221-00

321-0181-00

321-0143-00

321-0247-00

321-0183-00

321-0274-00

321-0216-00

321-0206-00

RES.,FXD,CMPSN:100 0HM,5%,0 25W

RES.,FXD,CMPSN:200K OHM,5%,0.25W

RES.,FXD,FILM:200K OHM,0.5%,0.125W

RES.,FXD,FILM:180.2K OHM,0.25%,0.125W


RES.,FXD,FILM:200K OHM.O.5%,0.125W

RES.,FXD,FILM:2K OHM.O.5%,0.125W


RES.,FXD,FILM:200 OHM.O 5%,0125W

RES.,FXD.FILM:442 OHM,1%,0.125W

B010100 BO RES ,FXD,FILM:432 OHM,1%,0.125W

RES.,FXD,FILM:422 OHM,1%,0.125W

B010100 BO10419 RES.,VAR,NONWIR:20 OHM,20%,0 50W

B010420 RES.,VAR,NONWIR:50 OHM,10%,0.50W

RES ,FXD,FILM:4.32K OHM,1%,0.125W

RES.,FXD,FILM:4.053K OHM,0.25%,0.125W


RES.,FXD,FILM:800 OHM.O.25%,0.125W

RES.,FXD,FILM:180 0HM,0.5%,0.125W

RES.,FXD,FILM:60 OHM,0.25%,0.125W

RES.,FXD,FILM:60 OHM,0.25%,0.125W


RES.,FXD,FILM:79.6 OHM,0.5%,0 125W


RES.,FXD,FILM:250 OHM,0.1%,0 125W

RES.,FXD,FILM:1.58K OHM,1%,0 125W

RES ,FXD,CMPSN:220 OHM,5%,0.25W

RES.,FXD.FILM:750 OHM,1%,0.125W


RES.,FXD,FILM:3.65K OHM,1%,0.125W



RES.,FXD,FILM:1 74K OHM,1%,0.125W


Mfr


80009 151-0432-00

80009 151-0432-00

80009 151-0432-00

01295 EP2970

80009 153-0626-00

01295 EP2970

01295 EP2970

80009 153-0626-00

01295 EP2970

80009 151-0341-00

80009 151-0341-00

80009 151-0410-00

80009 151-0410-00

80009 151-0342-00

07263 S038487

80009 151-0341-00

80009 151-0342-00

80009 151-1022-00

80009 151-0324-00

80009 151-0324-00

80009 153-0627-00

80009 151-0432-00

01121 CB1015

01121 CB2045

91637 MFF1816D20002D

91637 MFF1816D18022C

91637 MFF1816D20001D

91637 MFF1816D20002D

91637 MFF1816G20000D

91637 MFF1816D20002D

91637 MFF1816G200R0D

91637 MFF1816G442R0F

91637 MFF1816G432R0F

91637 MFF1816G422R0F

73138 82-38-0

73138 82-33-2

91637 MFF1816G43200F

91637 MFF1816C40530C

91637 MFF1816G600R0F

91637 MFF1816D300R0C

91637 MFF1816G180R0D

91637 MFF1816G60R00D

91637 MFF1816G6ORO0D

91637 MFF1816G280R0F

91637 MFF1816G79R60D

91637 MFF1816G196R0F

91637 MFF1816C250R0B

91637 MFF1816G15800F

01121 CB2215

91637 MFF1816G750R0F

91637 MFF1816G301R0F

91637 MFF1816G36500F

91637 MFF1816G787ROF

91637 MFF1816G69800F

91637 MFF1816G17400F

91637 MFF1816G13700F

8-8 REV G, JAN 1980

R226

R226

R227

R228

R228

R229

R229

R229

R232

R233

R234

R234

R235

R236

R237

R237

R238

R238

R238

R239

R241

R242

R242

R242

R243

R243

R244

R244

R245

R245

R251

R252

R253

R254

R255

R256

R257

R258

R310

R214

R 2 1 5

R216

R217

R218

R222

R223

R223

R224

R224

R225

R225

321-0103-00

315-0512-00

315-0151-00

315-0181-00

315-0331-00

321-0147-00

315-0392-00

321-0250-00

315-0472-00

321-0258-00

315-0431-00

321-0158-00

315-0104-00

317-0203-00

317-0112-00

315-0472-00

315-0472-00

317-0104-00

315-0473-00

315-0331-00

315-0303-00

315-0203-00

321-0315-00

315-0101-00

315-0222-00

321-0239-00

317-0151-00

317-0111-00

321-0103-00

315-0914-00

315-0134-00

315-0105-00

315-0914-00

315-0102-00

315-0102-00

315-0242-00

321-0230-00

317-0151-00

317-0111-00

C k t No.

R177

R192

R194

R212

R 2 1 3

T e k tr o n ix

P a rt No.

311-1248-00

317-0047-00

317-0047-00

315-0272-00

311-1173-00

311-1269-00

315-0102-00

315-0623-00

315-0103-00

315-0101-00

315-0204-00

315-0163-00

321-0292-00

315-0393-00

321-0326-00

315-0193-00

321-0304-00

S e r ia l/M o d e l No.

E ft D s c o n t N a m e

&

D e s c rip tio n

RES. , V A R , NONWIR:500 O H M , 10%,0.50W

RES. ,FXD,CMPSN:4 7 O H M .5%,0.125W

RES. ,FXD,CMPSN:4.7 OHM,5%,0.125W

RES. .FX D . C M P S N :2 7K O H M , 5 %,0.25W

RES. ,VAR,NONWIR:20K OHM.20%,0.25W

( R 2 1 3 , F U R N I S H E D AS A UN I T W I T H S213)

RES. .VAR.NONWIR:20K O H M , 10%,0.50W

RES. ,FXD . C M P S N : I K OHM,5%,0.25W

RES. ,FXD,CM P S N : 6 2 K OHM,5%,0.25W

RES. ,F X D . CMPSN:10K OHM,5%,0.25W

RES. ,F X D . C M P S N : 100 OHM,5%,0.25W

RES. .FXD.CMPSN:200K 0HM,5%,0.25W

RES. .FXD.CMPSN:16K OHM,5%,0.25W

RES. .FXD.FILM:10.7K O H M , 1 % , 0 . 125W


RES. ,F X D . F I L M : 2 4 . 3K O H M , 1 %,0.125W


RES. .FXD.FILM:14.3K O H M ,1%,0.125W

B010100 B010579

B010580

B010100 B010579

B010580

B010100 B010579

B010580

B010100 B010579

B O 10580

B010100 B010579

B010580

B010100 B010169

B010170 B010579

B010580

RES. ,F X D ,C M P S N :20K OHM,5%,0.25W

RES. . F X D .FILM:18.7K O H M , 1%,0.125W

RES. .FXD.CMPSN:100 OHM,5%,0 25W

RES. .FXD.CMPSN:2 . 2K OHM,5%,0.25W

RES. ,F X D ,F I L M :3.0IK OHM,1%,0.125W



RES. . F X D .FILM:115 O H M , 1 % ,0.125W

RES. ,F X D ,C M P S N :91OK OHM,5%,0.25W

RES. ,F X D , C M PSN:130K 0HM,5%,0.25W

RES. .FXD.CMPSN:1M OHM,5%,0.25W

RES. ,F X D ,C M P S N :910K OHM,5%,0.25W

B010100

B010580

B010579

B010100

B010580

B010579

B010100 B010169

B010170 B010579

RES. .FXD.CMPSN:IK OHM,5%,0.25W

RES. .FXD.CMPSN:IK OHM,5%,0.25W

RES. .FXD.CMPSN:2.4K OHM,5%,0.25W

RES. . F X D . F I L M :2.4 3K OHM,1%,0.125W

RES. .FXD.CMPSN:150 O H M ,5%,0.125W


B010580 RES. .FXD.FILM:115 O H M , 1%

,0.

1

25W

RES. .FX D . C M P S N :5.IK OHM,5%,0.25W

B010100 B010169X RES. . F XD.CMPSN:150 OHM,5%,0.25W

B010100

B010170

B010580

B010169

B010579

RES. . F XD.CMPSN:180 OHM,5%,0 25W


RES. ,F X D . F I L M :332 OHM,1%,0.125W

B010100

B010580

B010100

B010580

BO 10579

B010579

B010100 BO 10579

B010580

RES. ,F X D , C M P S N : 3.9K OHM,5%,0.25W

RES. . F X D . F I L M :3.92K O H M ,

1%

,0.125W

RES. ,FXD , C M P S N : 4 . 7K OHM,5%,0.25W

RES. . F XD.FILM:4.75K O H M ,1%,0.125W

RES. .FX D . C M P S N :430 OHM,5%,0 25W

RES. ,FXD,FILM:432 O H M , 1%,0.125W

RES. .FXD.CMPSN:100K O H M , 5 %,0.25W

RES. ,FXD,CM P S N : 2 0 K O H M , 5 % , 0 .125W

RES. ,FXD, C M P S N : 1 . I K OHM,5%,0.125W

RES. ,F X D ,CMPSN:4 . 7K OHM,5%,0.25W

RES. ,F X D ,CMPSN:4 . 7K OHM,5%,0.25W


RES. ,F X D ,CMPSN:4 7K 0HM,5%,0.25W

RES. .FXD.CMPSN:330 OHM,5%,0.25W

Replaceable Electrical Parts — 221 Service

M fr

C ode M fr P a rt N u m b e r

73138 72X-23-0-501K

01121 BB47G5

01121 BB47G5

01121 CB2725

71450 200-YA5541

32997 3329P-L58-203

01121 CB1025

01121 CB6235

01121 CB1035

01121 CB1015

01121 CB2045

01121 CB1635

91637 MFF1 8 1 6 G 1 0 7 0 1 F

01121 CB3935

91637 M F F 1 8 1 6G24301F

01121 CB1935

91637 MFF1 8 1 6 G 1 4 3 0 1 F

01121 CB2035

91637 MFF1 8 1 6 G 1 8 7 0 1 F

01121 CB1015

01121 CB2225

91637 MFF1816G 3 0 1 0 0 F

01121 BB1515

01121 BB1115

91637 M F F 1 8 1 6 G 1 15R0F

01121 CB9145

01121 CB1345

01121 CB1055

01121 CB9145

01121

CB1025

01121

CB1025

01121 CB2425

91637 M F F 1 8 1 6G24300F

01121 BB1515

01121 BB1115

91637 M F F1816G115R0F

01121 CB5125

01121 CB1515

01121 CB1815

01121 CB3315

91637 MFF1816G 3 3 2 R O F

01121 CB3925

91637 M F F 1 8 1 6G39200F

01121 CB4725

91637 M F F 1 8 1 6G47500F

01121 CB4315

91637 M F F 1 8 1 6G432R0F

01121

01121

01121

01121

01121

01121

CB1045

BB2035

BB1125

CB4725

CB4725

BB1045

01121 CB4735

01121 CB3315

01121 CB3035

REV G, JAN 1980 8-9


Tektronix Serial/Model No.

Ckt No. Part No. Eff Dscont

R311

R312

R313

R314

R315

R316

315-0203-00

315-0102-00

315-0202-00

315-0102-00

321-0267-00

315-0822-00

R317

R318

R321

R322

R323

R324

R325

R326

R327

R328

R328

R331

315-0102-00

315-0102-00

315-0102-00

315-0222-00

315-0272-00

315-0433-00

XB054451

315-0103-00

315-0184-00

315-0432-00

315-0393-00

315-0433-00

315-0103-00

BOIOIOO

B010580

B010579

R416

R417

R418

R422

R423

R424

R425

R432

R433

R434

R435

R436

R437

R442

R446

R332

R333

R334

R335

R336

R337

R362

R363

R364

R365

R413

R415

315-0243-00

315-0392-00

315-0331-00

315-0472-00

315-0103-00

315-0102-00

R338

R342

R343

R344

R345

R346

315-0102-00

315-0622-00

315-0152-00

315-0361-00

315-0911-00

315-0362-00

R351

R332

R353

R354

321-0193-00

311-1406-00

321-0226-00

311-1263-00

R355A-F 307-0308-01

R356 315-0394-00

315-0100-00

315-0100-00

315-0100-00

315-0100-00

311-1170-00

321-0339-00

321-0188-00

311-1261-00

311-1174-00

321-0212-00

321-0181-00

315-0221-00

321-0183-00

321-0291-00

321-0274-00

321-0216-00

321-0212-00

321-0254-00

315-0125-00

321-0255-00

321-0176-00

Name & Description


RES.,FXD,CMPSN:IK OHM,5%,0 25W




RES. ,FXD,CMPSN: 8 2K OHM,5%,0.25W

RES.,FXD,CMPSN:IK OHM,5%,0.25W

RES.,FXD,CMPSN:IK 0HM,5%,0.25W

RES ,FXD,CMPSN:IK OHM,5%,0.25W

RES.,FXD,CMPSN:2.2K OHM,5%,0.25W

RES ,FXD,CMPSN:2 7K OHM,5%,0 25W


RES ,FXD,CMPSN: 10K OHM,5%,0.25W

RES.,FXD,CMPSN: 180K OHM,5%,0.25W

RES.,FXD,CMPSN: 4.3K OHM,5%,0.25W

RES ,FXD,CMPSN: 39K OHM,5%,0.25W

RES ,FXD,CMPSN: 43K OHM, 5%,0.25W

RES.,FXD,CMPSN: 10K OHM, 5%,0 25W

RES ,FXD,CMPSN:24K 0HM,5%,0.25W


RES.,FXD,CMPSN:330 OHM,5%,0 25W

RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W

RES.,FXD,CMPSN:10K OHM,5%,0 25W

RES. ,FXD,CMPSN:IK OHM,5%,0.25W




RES. ,FXD,CMPSN:360 OHM,5%,0.25W

RES.,FXD,CMPSN:910 OHM,5%,0.25W


RES ,FXD,FILM:IK OHM,1%,0.125W

RES.,VAR.NONWXR:20K OHM,0.25W.W/SW

RES. ,FXD,FILM: 2.2IK OHM,1%,0 125W

RES ,VAR.NONWIR:IK OHM,10%,0.50W

RES ,FXD,FILM:NETWORK,HYBRID CIRCUIT

RES.,FXD,CMPSN:390K OHM,5%,0 25W


RES.,FXD,CMPSN:10 0HM,5%,0.25W

RES ,FXD,CMPSN:10 0HM,5%,0.25W


RES.,VAR,NONWIR:20K OHM,20%,0.25W

RES ,FXD,FILM:33.2K OHM, 1%,0.125W

RES.,FXD,FILM:887 OHM, 1%,0.125W

RES.,VAR.NONWIR:500 OHM,10%,0.50W

RES..VAR.NONWIR:5K OHM,20%,0.25W

RES. ,FXD,FILM:1 58K OHM,1%,0.125W



RES.,FXD,FILM:787 OHM, 1%,0.125W






RES ,FXD,CMPSN:1.2M OHM,5%,0.25W

RES ,FXD,FILM:4.42K OHM,1%,0.125W

RES ,FXD,FILM:663 OHM,1%,0.125W

Mfr


01121 CB2035

01121 CB1025

01121 CB2025

01121 CB1025

91637 MFF1816G59000F

01121 CB8225

01121 CB1025

01121 CB1025

01121 CB1025

01121 CB2225

01121 CB2725

01121 CB4335

01121 CB1035

01121 CB1845

01121 CB4325

01121 CB3935

01121 CB4335

01121 CB1035

01121 CB2435

01121 CB3925

01121 CB3315

01121 CB4725

01121 CB1035

01121 CB1025

01121 CB1025

01121 CB6225

01121 CB1525

01121 CB3615

01121 CB9115

01121 CB3625

91637 MFF1816G10000F

71450 200-YA5557

91637 MFF1816G22100F

32997 3329P-L58-102

80009 307-0308-01

01121 CB3945

01121 CB1005

01121 CB1005

01121 CB1005

01121 CB1005

71450 UPE270

91637 MFF1816G33201F

91637 MFF1816G887R0F

32997 3329P-L58-501

71450 200-YA5542

91637 MFF1816G15800F

91637 MFF1816G750R0F

01121 CB2215

91637 MFF1816G787ROF

91637 MFF1816G10501F

91637 MFF1816G69800F

91637 MFF1816G17400F

91637 MFF1816G15800F

91637 MFF1816G43200F

01121 CB1255

91637 MFF1816G44200F

91637 MFF1816G665R0F

8-10 REV I, JAN 1980


R623

R624

R626

R626

R626

R627

R632

R633

R634

R545

R548

R532

R553

R555

R556

R557

R612

R613

R614

R622

R622

R511

R512

R513

R514

R316

R517

R318

R519

R522

R523

R524

R525

R526

R527

R532

R533

R534

R535

R536

R537

R542

R543

R544

C k l N o .

R 4 4 7

R 4 5 3

R 4 5 6

R 4 5 8

R 4 6 2

R 4 6 6

T e k t r o n i x

P a r t N o .

S e r i a l / M o d e l N o .

Eff D s c o n t

3 2 1 - 0 2 5 5 - 0 0

3 2 1 - 0 3 6 0 - 0 0

3 2 1 - 0 3 1 2 - 0 0

3 2 1 - 0 3 0 4 - 0 0

3 2 1 - 0 4 3 5 - 0 0

3 2 1 - 0 3 1 8 - 0 0

R 4 6 8

R 5 0 1

R 5 0 2

R 5 0 3

R 5 0 4

R 5 0 5

N a m e & D e s c r i p t i o n

R E S . , F X D , F I L M : 4 . 4 2 K O H M , 1 % , 0 . 1 2 5 W

R E S . ,F X D ,F I L M : 5 4 . 9 K O H M , 1 % , 0 . 1 2 5 W

R E S . ,F X D , F I L M : 1 7 . 4 K O H M , 1 % , 0 . 1 2 5 W


R E S . ,F X D , F I L M :3 3 2 K O H M , 1 % , 0 . 1 2 5 W

R E S . ,F X D . F I L M : 2 0 K O H M , 1 % , 0 . 1 2 5 W

3 2 1 - 0 3 0 4 - 0 0

3 1 5 - 0 4 7 2 - 0 0

3 1 5 - 0 4 7 0 - 0 0

3 2 1 - 0 6 4 1 - 0 0

3 2 1 - 0 2 8 0 - 0 0

3 1 1 - 1 2 4 5 - 0 0

321-0297-00

315-0303-00

315-0224-00

315-0473-00

321-0263-00

321-0260-00

321-0325-00

311-1170-00

315-0471-00

321-0263-00

315-0201-00

321-0219-00


R E S . ,F X D ,C M P S N : 4 . 7 X O H M , 5 % , 0 . 2 5 W

R E S . ,F X D , C M P S N :47 O H M , 5 % , 0 . 2 5 W

R E S . ,F X D , F I L M : 1 . 8 K O H M , 1 % , 0 . 1 2 5 W

R E S . ,F X D , F I L M : 8 . 0 6 K O H M , 1 % , 0 . 1 2 5 W

R E S . , V A R , N O N W I R : 1 0 K O H M , 1 0 % , 0 . 5 0 W

RES. ,FXD,FILM:12.IK OHM,1%,0.125W

RES. ,FXD,CMPSN:30K OHM,5%,0.25W



RES. ,FXD,FILM:5.36K OHM,1%,0.125W



RES. ,VAR,NONWIR:20K OHM,20%,0.25W





321-0184-00

321-0185-00

321-0264-00

321-0306-00

311-1245-00

321-0301-00

321-0289-00

315-0474-00

315-0101-00

321-0414-00

321-0625-00

321-0179-00

RES. ,FXD,FILM:806 0HM,1%,0.125W

RES. ,FXD,FILM:825 OHM,1%,0.125W


RES. ,FXD,FILM:15K OHM,1%,0.125W

RES. ,VAR,NONWIR:10K OHM,10%,0.50W






RES. ,FXD.FILM:5.88K OHM,1%,0.125W

RES. ,FXD,FILM:715 OHM,1%,0.125W

321-0373-00

321-0407-00

321-0332-00

321-0306-00

315-0203-00

321-0407-00

RES. ,FXD,FILM:75K OHM, 1%,0.125W






321-0355-00

315-0155-00

315-0106-00

315-0106-00


RES. ,FXD,CMPSN:1.5M OHM,5%,0.25W

RES. ,FXD,CMPSN:10M OHM,5%,0.25W

RES. ,FXD,CMPSN:10M 0HM,5%,0.25W

315-0106-00 B010100 B020806 RES. ,FXD,CMPSN:10M 0HM,5%,0.25W

315-0185-00 B020807 RES. ,FXD,CMPSN:1.8M OHM,5%,0.25W

315-0105-00 RES. ,FXD,CMPSN:1M OHM,5%,0.25W

315-0133-00 XB020807 RES. ,FXD,CMPSN:13K OHM,5%,0.25W

301-0822-00 B010100 B020474 RES. ,FXD,CMPSN:8.2K OHM,5%,0.50W

301-0123-00 B020475 B020806 RES. ,FXD,CMPSN:12K OHM,5%,0.SOW

315-0183-00 B020807 RES. ,FXD,CMPSN:18K OHM,5%,0.25W

315-0102-00 XB020807 RES. ,FXD,CMPSN:IK OHM,5%,0.25W

307-0116-00

315-0200-00

315-0200-00

XB020680

RES. ,FXD.CMPSN:9.1 OHM,5%,0.25W



M f r

C o d e

9 1 6 3 7

9 1 6 3 7

9 1 6 3 7

9 1 6 3 7

9 1 6 3 7

9 1 6 3 7

M f r P a r t N u m b e r

M F F 1 8 1 6 G 4 4 2 0 0 F

M F F 1 8 1 6 G 5 4 9 0 1 F

M F F 1 8 1 6 G 1 7 4 0 1 F

M F F 1 8 1 6 G 1 4 3 0 1 F

M F F 1 8 1 6 G 3 3 2 0 2 F

M F F 1 8 1 6 G 2 0 0 0 1 F

9 1 6 3 7

0 1 1 2 1

0 1 1 2 1

9 1 6 3 7

M F F 1 8 1 6 G 1 4 3 0 1 F

C B 4 7 2 5

C B 4 7 0 5

M F F 1 8 1 6 G 1 8 0 0 0 F

9 1 6 3 7 M F F 1 8 1 6 G 8 0 6 0 0 F

73138 72-28-0

91637 MFF1816G12101F

01121 CB3035

01121 CB2245

01121 CB4735

91637 MFF1816G53600F

91637 MFF1816G49900F

91637 MFF1816G23701F

71450 UPE270

01121 CB4715

91637 MFF1816G53600F

01121 CB2015

91637 MFF1816G18700F

91637 MFF1816G806R0F

91637 MFF1816G825R0F

91637 MFF1816G54900F

91637 MFF1816G15001F

73138 72-28-0

91637 MFF1816G13301F

91637 MFF1816G10001F

01121 CB4745

01121 CB1015

91637 MFF1816G20002F

91637 MFF1816G58800F

91637 MFF1816G715R0F

91637 MFF1816G75001F

91637 MFF1816G16902F

91637 MFF1816G28001F

91637 MFF1816G15001F

01121 CB2035

91637 MFF1816G16902F

91637 MFF1816G48701F

01121 CB1555

01121 CB1065

01121 CB1065

01121 CB1065

01121 CB1855

01121 CB1055

01121 CB1335

01121 EB8225

01121 EB1235

01121 CB1835

01121 CB1025

01121 CB91G5

01121 CB2005

01121 CB2005

REV I, JAN 1980 8-11


Sill

S121

S213

S235

S350

S521

S738

T312

T623

T623

T633

T701

R739

R751

R752

R733

R754

R756

R757

R665

R666

R667

R668

R669

R676

R676

R731

R732

R733

R734

R735

R736

R738

R647

R648

R654

R655

R656

R657

R659

R660

R661

R662

R663

R664

U654

V740

VR534

Ckt No.

R636

R642

R643

R644

R645

R646

Tektronix

Part No.

315-0271-00

315-0104-00

321-0250-00

311-1239-00

321-0281-00

315-0562-00

Serial/Model No.

Eff Dscont Name

&

Description




RES.,VAR,NONWIR:2.5K OHM,10%,0.50W


RES. ,FXD,CMPSN:5.6K OHM,5%,0.25W

315-0103-00

315-0103-00

315-0273-00

315-0362-00

321-0289-00

321-0289-00

315-0270-00

315-0270-00

321-0289-00

311-1245-00

321-0289-00

321-0452-00

XB022090

XB022090


RES. ,FXD,CMPSN:10K 0HM,5%,0.25W



RES.,FXD,FILM:10K OHM,1%,0.125W





RES.,VAR,NONWTR:10K OHM,10%,0.50W



315-0513-00

315-0102-00

RES.,FXD,CMPSN:5IK OHM,5%,0.25W

RES.,FXD,CMPSN:IK OHM,5%,0.25W

307-0375-00

315-0104-00

315-0151-00 XB020680

315-0153-00 BO B022748

RES.,FXD,FILM:100M OHM




315-0392-00 B022749

315-0102-00

315-0205-00

311-1646-00

315-0205-00

315-0205-00



RES.,FXD,CMPSN:2M OHM,5%,0.25W

RES.,FXD,VAR,NONWIR

;

2M OHM,20%,0.SOW



315-0103-00

311-1549-00

311-1399-00

311-1271-00

311-1241-00


RES.,VAR,N0NWIR:2M OHM,20%,0.25W

RES.,VAR,NONWIR:5M OHM,20%,0.50W

RES.,VAR,NONWIR

:

50K OHM,10%,0.50W


311-1241-00

315-0102-03 XB054451

321-0364-00

315-0104-00

260-0984-01

214-1863-01



RES.,FXD.FILM:60.4K OHM,1%,0.125W

RES.,FXD,CMPSN:100K 0HM,5%,0.25W

260-0723-00

214-1875-01

260-0723-00

SWITCH,SLIDE:DP3T W/PLASTIC PLATE

DETENT,RTRY SW:WITH CONTACTS

(S213 FURNISHED AS A UNIT WITH R213)

SWITCH,SLIDE:DPDT,0.5A,125VAC


DPDT, 5VAC

(S738 FURNISHED AS A UNIT WITH R738)

120-0878-00

120-0877-00 B010100 B020474 XFMR,BASE DRIVE:

120-0946-00 B020475 XFMR,BASE DRIVE:

120-0876-00

120-0875-00

XFMR TOROID:3 WINDINGS

XFMR,INVERTER:POT CORE

XFMR,PWR.STPDN:POT CORE

156-0067-00 MICROCIRCUIT,LI:OPERATIONAL AMPLIFIER

ELECTRON TUBE:CRT 154-0705-00

152-0265-00 SEMICOND DEVICE:ZENER,0.4W,24V,5%

Mfr


01121 CB2715

01121 CB1045

91637 MFF1816G39200F

73138 72X-76-0-252K

91637 MFF1816G82500F

01121 CB5625

01121 CB1035

01121 CB1035

01121 CB2735

01121 CB3625

91637 MFF1816G10001F

91637 MFF1816G10001F

01121 CB2705

01121 CB2705

91637 MFF1816G10001F

73138 72-28-0

91637 MFF1816G10001F

91637 MFF1816G49902F

01121 CB5135

01121 CB1025

80009 307-0375-00

01121 CB1045

01121 CB1515

01121 CB1535

01121 CB3925

01121 CB1025

01121 CB2055

73138 72-97-0

01121 CB2055

01121 CB2055

01121 CB1035

71450 311

73138 72-90-0

32997 3329P-L58-503

32997 3386X-T07-104

32997 3386X-T07-104

01121 CB1025

91637 MFF1816G60401F

01121 CB1045

79727 G-128SPC/

80009 214-1863-01

79727 GF126-0028

80009 214-1875-01

79727 GF126-0028

80009 120-0878-00

80009 120-0877-00

80009 120-0946-00

80009 120-0876-00

80009 120-0875-00

80009 156-0067-00

80009 154-0705-00

80009 152-0265-00

8-12 REV G, JAN 1980

Ckt No.

VR625

VR626

VR634

VR654

VR738

VR757

Tektronix

Part No.

Serial/Model No.

Eft Dscont

132-0168-00 XB020807

152-0168-00 XB020807

152-0243-00

152-0166-00

152-0287-00

152-0127-00

Name

&

Description

SEMICOND DEVICE:ZENER,0.4W,12V,5%

SEMICOND DEVICE:ZENER,0.4W,15V,5%

SEMICOND DEVICE:ZENER,0.4W,6.2V,5%

SEMICOND DEVICE:ZENER,0.4W.110V,5%

SEMICOND DEVICE:ZENER,0.4W,7.5V,5%


Mfr


80009 152-0168-00

80009 152-0168-00

14552 1N965B

80009 152-0166-00

04713 1N986B

80009 152-0127-00

REV C, JAN 1980

8-13

221 Service

DIAGRAMS

AND

CIRCUIT BOARD ILLUSTRATIONS

Symbols and Reference Designators

E lectrical com ponents shown on the diagrams are in th e fo llo w in g u nits unless noted otherw ise:

C apacitors = Values one o r greater are in picofarads (pF ).

Values less than one are in m icrofarads (pF ).

Resistors = Ohms (fil).

Sym bols used on th e diagrams are based on U SA Standard Y 32.2-1967.

A

A T

B

B T

C

CB

CR

D L

DS

E

F

F L

Logic sym bology is based on M IL-S T D -80 6B in term s o f p ositive logic. Logic sym bols d e p ic t the logic fu n c tio n perform ed and may d iffe r fro m the m anufacturer's data.

The fo llo w in g p re fix letters are used as reference designators to id e n tify com ponents or assemblies on th e diagrams.

Assembly, separable or repairable

(circ u it board, etc.)

A tte n u a to r, fixe d or variable

M o to r

Battery

Capacitor, fixe d or variable

C irc u it breaker

D iode, signal or rectifier

Delay line

Indicating device (lam p)

Spark Gap

F use

F ilte r

H

HR

H Y

J

K

L

LR

M

P

Q

R

H eat dissipating device (heat sink.

heat radiator, etc.)

Heater

H y b rid circuit

C onnector, stationary p ortio n

Relay

In d u c to r, fixed or variable

1 nductor/resistor com bination

M eter

C onnector, movable portion

Transistor or silicon-controlled rectifier

Resistor, fixed or variable

R T

S

T

TC

TP

U

V

V R

Y

Z

Therm isto r

Sw itch

T ransform er

T herm ocouple

Test p o in t

Assembly, inseparable or non-repairable

(integrated circ u it, etc.)

Electron tube

Voltage regulator (zener d iode, etc.)

Crystal

Phase shifter

PROBE 4rdill

I N P U T C O U P L IN G

I

A C / DC

S O U R C E

221 O s c i l l o s c o p e http://manoman.sqhi[T.com

+ 5 V I

5V

R E V . B j J U L Y 19 7 4

BLOCK DIAGRAM

Note : Shield removed

\

S121

R 114

S350

R356

C356

C355

C l 28

R126

C l 26

C127

1

R343

2 C363 R363

Q 342 R417

? 8 9

R 127

R365

C122

C354

R123

C l 25 in a

C l 23

R120 in to cc CN CM

CO CO a o

C351

R124

R121

C121

L 194 C194 Q340

O)

R342 r-

0 c

L192

Q 338

C 344 R344

R346

R345

R313

C417

*374

C l 92

R 354 O

T 312

C337

R337

Q332

R 3 1 1

Q336

R333

R334

R 322

R323

Q 316 M in

M

CC

Q 330

R338 Q328

Q326

R 324 R326

R325

B331 R 332 R 328 *3 5 1

CO cc

00 Q334

CR345CC

R 335 C324

C333

CO

Q 324

R214

Q 312

CO

CC

0 2 1 8 Q216 „ S

N cc cc

R212 16 17 18

R327

0 3 2 2 R315

10 11 12

S i l l

S521

13 14 15

C316 R 258

C112

Q256

J232

<0

CO

CC

C100

0214

Q 212 in

R222 cv ..

cc £ oo o M z r. «

CM r-

O CN co

CC CM

PM

CC

Q222 ^

I W CM fs in

CM

CC

IV c\! (N a o

<N

CC

R233

R676

S235

RZ32 C235

CZ32 R235

CR232

0 2 3 2 Q 234

R234

?

^

R256

Q226

CC

C256

R237

L237

I P

Q 236 ® ®

£ 'K

Q 254

>

R 236

R228

_ J233

& flA .

§

O

Q 246 § n 2 S

CM ^

R255

R254

0 2 5 2

19 20 21 22 23 24 25 5 cc a! cc

1 5 7 3 - 2 3

Fig. 9-1. A 1 —Input circuit board (Front) SNB020475 & above.

http://manoman.sqhill.com

ht

4 p ://m ts oc

17 18 19 20 21 22 23 24 25

R 352

S213

R213

C362

C234

C233 plOO r r n

ID

M m

R 4 1 8

S738

R738 R100

R112

C365

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

REV D, FEB 1979 Note: Shield Removed

1 5 7 3 - 2 4

Fig. 9-2. A1 —Input circuit board (back) Sl\l B020475 & above.

R676

Located on back of board

C233 C362

C234 C365

Fig. 9-3. A 1 —Input circuit board (Below SIM B020475).

0 2 4 6 N

0 2 3 6

Q214

"See Parts List for serial number ranges.

tLocated on back of board.

^Soldered on emitter lead.

CR132

R137

R153

R143

R 144

R 154

R 145

R155

R146

R 147 o

T— cc o

R156

R136 a? .

I- ps a: ru 5

R174

R175 tC 175

R 173

R176

CN

CD

DC

O

— fo

4 cn

CN

CO

CO

CO u

R 134

CO

CO

<

CD

CO

R164

CN

(0 to

CD h*

(D

CO r>

CD

R165

Fig. 9-4 A 2 —Preamplifier circuit board

«D

1 5 7 3 - 2 6

VO LTA G ES A N D W AVEFORMS

RECOMMENDED TEST EQUIPMENT

ITEM SPECIFICATIONS

Frequency response 5 megahertz Oscilloscope

Voltm eter nonloading digital m u lti meter

Input impedance: 10 MS2

Range: 0 — 1 kV

RECOMMENDED TYPE

Tektronix 221 or equivalent.

Tektronix 7D13 Digital m ultim eter, test oscilloscope w ith readout is required.

Fairchild Model 7050 or equivalent.

The voltages and waveforms shown on this diagram were obtained by using the follow ing test set-up and test equipment.

Voltage Measurements

Set the fro n t and side panel controls fo r a vertically centered trace (TRIGGER/SLOPE set to AUTO

PRESET).

Input coupling switch to ground (GND).

Voltm eter common is connected to the instrument common.

Waveform Measurements

The 221 Oscilloscope under test: The vertical deflection is set to 1 V w ith a fo ur vo lt square wave connected to the probe tip , and the SEC/DIV switch is set fo r 0.5 m. The TRIGGER LEVEL/SLOPE set to

AUTO PRESET w ith a triggered display. Any change in the set-up w ill be noted on the photograph

(HORIZ-MAG 10X).

Test Oscilloscope

The test oscilloscope is internally triggered; the vertical deflection factor and horizontal tim ing is indicated on the waveform photograph. The vertical input is AC coupled, so repositioning o f the display is not necessary after checking difference test points. The tolerance o f the voltages and waveforms is 20%.

REV. APR 1974

P R O B E

3 6

J r ± i

'j___

80OK

PIOO t m t i

RIOO too

221 O SC IL L O SC O P E

V E R T "SIGMA*I—

T O G } 4 2 2 A

R EV B , JU LV 1974

L 192.

2 0 0 * 4

H

'TftnT'—v w —* - +SV

R192

4.1

R 194

4.7

— £V

T O R 4 I J

D1A©<

R A R T I A L ^ A I - I N P U T B O A R D

P R E A M P L I F I E R < j>

1

VO LTAG ES A N D W AVEFORMS

Oscilloscope

ITEM


SPECIFICATIONS

Frequency response 5 megahertz

RECOMMENDED TYPE



Input impedance: 10 M£2

Range: 0 - 1 kV





Set the fro n t and side panel controls for a vertically centered trace (TRIGGER/SLOPE set to AUTO

PRESET).


Voltmeter common is connected to the instrument common.


The 221 Oscilloscope under test: The vertical deflection is set to 1 V w ith a four volt square wave connected to the probe tip , and the SEC/DIV switch is set for 0.5 m. The TRIGGER LEVEL/SLOPE set to


(HORIZ-MAG 10X).


The test oscilloscope is internally triggered; the vertical deflection factor and horizontal tim ing is indicated on the waveform photograph. The vertical input is AC coupled, so repositioning of the display is not necessary after checking difference test points. The tolerance of the voltages and waveforms is 20%.

H I

1

-4 -B V -*----- <

F E O M

D I A & ' o v

FR O M ^ ^ ufeSA p in a

“ 5 V h

»— <

P A R TIA L A4-PW K. S P l

V B D

UNBLANKING ^

SIGNAL DtAG <5>

, +5V

(Dcpta)

+ 5V

( d c p le

)

SWEEP

OUT

TO Q 502

DIAG < |>

[ COMMON | > -• -£

JS33

22-1 O S C I L L O S C O P i 1 5 7 3 - 2 8

R.EV C

T R IG G E R /S W E E P <$>

R753

(O if) r-

O

R468

Q 466

CR468

CR467

R466

C466

R462

Q 464

C462

CR462

7 ^ 5

Q 442

Q4S2

CR455

CR464

R456

C456

R453

C R 453

R422

R458

0 4 5 6

R446

R557

R544

R543

C544

Q556

Q 544

R 555

CR557 <g

C R 556 Q 554 g Q 552

R556

C548

R54B

R553

R 552

% g 3

Q542

R542

C542

R537

R545

Q 532 n

U *

%

R752

« S 0 7 5 4 in in in

DC o

R757

V R 757

C557

15 14 13

C571

L571

L573

C573

12 11 10 9 8 7 6 5

C447 tf in

DC

R533

0 5 1 8

Q526

Q522

Q516

C523

Sgcv

8 > S

DC

CM in S

O m

DC

C535

8

£ S

DC

C517

L

S i

DC f «- cc

£ m o

C512

8 a F

£ £ g g g £ £

X l a H k H i P r !

s

DC

K / l

C435

R 505

R502

R504

R503

R516

R519

Q502

C516

R437 in

CO o

CM

CO

CC

R436

C432

R435 R

0 4 2 6

R425

R434

C443

C R 435

CR434

CR423

I h. R433 d r

I

C R 4 2 2

Q422

R423

R424 C 4 2 2 C 423

R415

R416

1 5 7 3 - 2 9

FIG . 9-5. A 3 —Am plifier circuit board.

NOTE: C R 469 and CR470 are located on reverse side of board SN B033994 & up.

*See Parts List for serial number ranges.

REV E, FEB 1979

VO LTAG ES AND W AVEFORM S

Oscilloscope

ITEM

RECOM M ENDED TEST EQ U IPM ENT

SPEC IFIC ATIO N S


R EC OM M ENDED TYPE


Voltmeter nonloading digital m u lti meter

Input impedance: 10 MO

Range: 0 — 1 kV






PRESET).




The 221 Oscilloscope under test: The vertical deflection is set to 1 V w ith a four volt square wave connected to the probe tip , and the SEC/DIV switch is set fo r 0.5 m. The TRIGGER LEVEL/SLOPE set to


(HORIZ-MAG 10X).


The test oscilloscope is internally triggered; the vertical deflection factor and horizontal tim ing is indicated on the waveform photograph. The vertical input is AC coupled, so repositioning of the display is not necessary after checking difference test points. The tolerance of the voltages and waveforms is 20%.

v ON

/ DIAS <g>

SEE PARTS LIST FOR EARLIER

VALUES AND SERIAL NUMBER

RANGES OF PARTS OUTLINED

OR DEPICTED IN BLUE.

ON

) d i a g

<g>

2.2-1, O S C I L L O S C O P E

REV.C , M AY.1978

VER.TICA l_ $ HORIZONTAL AMPLIFIERS <g>

R662

C656

C657

R661

R663

TP

■1000V

R739

C735

U654

R657

R656

R734

R735

%

C739

C734

C662

R665

R664

R666

0660 Q662

Q664

C663 so

ID $

S a cc

VR738

CC

C733

/

TP

,2V

TP

OV

C731

C617

TP

-5V

IS cc

P5

S TP cc 5V

CD cc

CO

CD

C732

Q 666

Q668

00 w u

P733

P633

> m e cc

Q648 g CR654

<C

C632

| Q646 1 C647

CC cc

□644 0642

CRS33

4

6

T633

T701

R669

CO

CO

CJ

*

C666

C644

&

S

0640 |

£

CR634

VR634 C634

F630

P632 rDfibo

L632

R633 C633

R632

R634 Q 634

R636

C712

CR712

C713 CR715

CR713

C715

C714 L713

CR716

L716 R732

C736 C737

C613

CR626

R623

3

2

R614

R613

R626 Q626

5 4 3

T623

9 6

C614

\

C623

L626

CR625

CU CR622

CD CO o cc

0622 cc u

CD u

CRS21 n

CO

I- n « IE is

CD eg CD sc

CJ cc cc « c

CJ O o

C615 j j \

CR624

F610

L610

16 17 18 19 20 21 22 23 24 25

R733

REV C, DEC. 1974 On back o f board:

R624

R627

V R 625

V R 626

FIG . 9-6. A 4 —Power supply c irc u it board (above) SNB020475

R662

R661

R663

TP

-1000V

R739

C735

\

c f

8

C734

TP

,2V

C733

C731

8

TP

0V

C732

C656

C657

C662

R665

R664

R666

Q 660 0 6 6 2

0 6 6 4

U654

C663

R557

R556

R734

R735

C739 oo

& 8 cc

V R 738

Q666

Q668

C617

C623

TP

-5V in

ID cc

<0

TP

I 5V

ID

CC to tr

>

C632

|

0648 N x

§ 0 6 4 6

S CR654S g c - 47

C647

Q644 Q642

CR633

4

5

6

T633

T701

C666

C715

/

C644 to

IT)

CC

Q640

3 cc

V R 6 3 4

CR634

C634

CR632

R632

L 632 R634 Q634

R636

CR626

R626 Q626 Q622

AJ

CO a: o

\ iD

C t

O

CO

CM

CO oc

T T 4 3 ;

T623

9 6

So CR 622C R 621

7

„

'3 ‘ N t\l J2 N a s ® o cc g

CD CO CO

CC CC

G O O

DC

CO o

C615

n

C737

C613 C614

L610

<r*

ID ^

O £ to cc

F610

R733

16 17 18 19 20 2122 23 24 25

FIG. 9-7. A 4—Power supply circuit board (below) SNB020475.

A4

POWER SUPPLY http://manoman.sqhill.com

REV JULY 1974 ®

SEE

DIA6

< 5 >

P 6I0

9 0 - 2 5 0 V AC

3 8 - 6 2 HH

8 0 - 2 5 0 V DC

22.1 O S C I L L O S C O P E

R.EV. F ,M A Y J 9 7 6

1S 73-33

POWER SUPPLY <$>

S E E

DIA6

<§>

VO LTAG ES A N D W AVEFORMS

Oscilloscope

ITEM



SPECIFICATIONS


Input impedance: 10 MS2

Range: 0 — 1 kV

RECOMMENDED TYPE







PRESET).




The 221 Oscilloscope under test: The vertical deflection is set to 1 V w ith a four vo lt square wave connected to the probe tip , and the SEC/DIV switch is set fo r 0.5 m. The TRIGGER LEVEL/SLOPE set to


(HORIZ-MAG 10X).


The test oscilloscope is internally triggered; the vertical deflection factor and horizontal tim ing is indicated on the waveform photograph. The vertical input is AC coupled, so repositioning o f the display is not necessary after checking difference test points. The tolerance o f the voltages and waveforms is 20%.

2 Z i O S C I L L O S C O P E 1 5 7 3 - 3 4

REV C , F E S | <5 -7 <

C R . T C I e c u IT <S>

W-E.


REPLACEABLE

MECHANICAL PARTS

PARTS ORDERING IN FO R M A TIO N

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

IN D E N TA TIO N SYSTEM

This mechanical parts list is indented to Indicate item relationships. Following is an example of the indentation system used in the description column.

1 2 3 4 5 N a m e & D e s c r i p t i o n

A s s e m b l y a n d / o r C o m p o n e n t

A t t a c h i n g p a r t s f o r A s s e m b l y a n d / o r C o m p o n e n t

*

D e t a i l P a r t o f A s s e m b l y a n d / o r C o m p o n e n t

A t t a c h i n g p a r t s f o r D e t a i l P a r t

P a r ts o f D e t a i l P a r t

A t t a c h i n g p a r t s f o r P a r t s o f D e t a i l P a r t

Attaching Parts always appear in the same indentation as the item it mounts, while the detail parts are indented to the right.

Indented items are part of, and included with, the next higher indentation. The separation symbol — * — indicates the end of attaching parts.

Attaching parts must be purchased separately, unless otherwise specified.

FIGURE AND INDEX NUM BERS

Items in this section are referenced by figure and index numbers to the illustrations.

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.

ft

ACTR

ADPTR

ALIGN

AL

ASSEM

ASSY

ATTEN

AWG

BD

BRKT

BRS

BRZ

BSHG

CAB

CAP

CER

CHAS

CKT

COMP

CONN

COV

CPLG

CRT

DEG

DWR

INCH

NUMBER SIZE

ACTUATOR

ADAPTER

ALIGNMENT

ALUM INUM

ASSEMBLED

ASSEMBLY

ATTENUATOR

AMERICAN WIRE GAGE

BOARD

BRACKET

BRASS

BRONZE

BUSHING

CABINET

CAPACITOR

CERAMIC

CHASSIS

CIRC UIT

CO M PO SITIO N

CONNECTOR

COVER

CO UPLING

CATHODE RAY TUBE

DEGREE

DRAWER

ELCTRN

ELEC

ELCTLT

ELECTRON

ELECTRICAL

ELEM

EPL

EQPT

EXT

FIL

FLEX

FLH

ELECTROLYTIC

ELEMENT

ELECTRICAL PARTS LIST

EQ UIPM ENT

EXTERNAL

FILLISTER HEAD

FLEXIBLE

FLTR

FR

FSTNR

FT

FXD

GSKT

HV

1C

ID

IDENT

IMPLR

FLAT HEAD

FILTER

FRAME or FRONT

FASTENER

FOOT

FIXED

GASKET

HDL

HEX

HEX HD

HANDLE

HEXAGON

HEXAGONAL HEAD

HEX SOC HEXAGONAL SOCKET

HLCPS

HLEXT

HELICAL COMPRESSION

HELICAL EXTENSION

HIG H VOLTAGE

INTEGRATED C IR C U IT

INSIDE DIAMETER

ID EN TIFIC A TIO N

IMPELLER

ABBREVIATIONS

IN

INCAND

INSUL

INTL

MECH

MTG

NIP

INCH

INCANDESCENT

INSULATOR

INTERNAL

LAMPHOLDER LPHLDR

MACH M ACHINE

M ECHANICAL

M O U NTING

NIPPLE

NON WIRE NOT WIRE WOUND

OBD ORDER BY DESCRIPTION

OD

OVH

OUTSIDE DIAMETER

OVAL HEAD

PH BRZ

PL

PLSTC

PN

PNH

PHOSPHOR BRONZE

PLAIN or PLATE

PLASTIC

PART NUMBER

PAN HEAD

PWR

RCPT

RES

RGD

RLF

RTNR

SCH

SCOPE

SCR

POWER

RECEPTACLE

RESISTOR

RIGID

RELIEF

RETAINER

SOCKET HEAD

OSCILLOSCOPE

SCREW

SQ

SST

STL

SW

T

TERM

THD

THK

TNSN

TPG

TRH

SE

SECT

SINGLE END

SECTION

SEM ICO ND SEM ICO ND UC TOR

SHLD SHIELD

SHLDR SHOULDERED

SKT

SL

SLFLKG

SLVG

SPR

SOCKET

SLIDE

SELF-LOCKING

SLEEVING

SPRING

V

VAR

W/

WSHR

XFMR

XSTR

SQUARE

STAINLESS STEEL

STEEL

SW ITCH

TUBE

TERM INAL

THREAD

T H IC K

TENSION

TAPPING

TRUSS HEAD

VOLTAGE

VARIABLE

WITH

WASHER

TRANSFORMER

TRANSISTOR

REV C, FEB 1979

10-1

Replaceable Mechanical Parts—221 Service

CROSS IN D E X -M F R . CODE NUMBER TO MANUFACTURER

22526

23050

49671

73743

76545

77250

79727

80009

80710

83385

95987

98278

Mfr. Code

00779

01295

04963

08530

16428

18121

19209

Manufacturer Address

AMP, INC.

TEXAS INSTRUMENTS, INC., SEMICONDUCTOR

GROUP

MINNESOTA MINING AND MFG. CO., ADHESIVES

COATINGS AND SEALERS DIVISION

RELIANCE MICA CORP.

BELDEN CORP.

WILSHIRE FOAM PRODUCTS, INC.

GENERAL ELECTRIC CO., ELECTRONIC

CAPACITOR AND BATTERY PRODUCTS DEPT.

BATTERY PRODUCTS SEC.

BERG ELECTRONICS, INC.

PRODUCT COMPONENTS CORP

RCA CORPORATION

FISCHER SPECIAL MFG. CO.

MUELLER ELECTRIC CO.

PHEOLL MANUFACTURING CO., DIVISION

OF ALLIED PRODUCTS CORP.

C-W INDUSTRIES

TEKTRONIX, INC.

ALLEGHENY LUDLUM STEEL CORP., A DIVISION

OF ALLEGHENY LUDLUM INDUSTRIES, INC.

CENTRAL SCREW CO.

WECKESSER CO., INC.

MALCO A MICRODOT COMPANY, INC.

CONNECTOR AND CABLE DIVISION

P 0 BOX 3608

P 0 BOX 5012, 13500 N CENTRAL

EXPRESSWAY

3M CENTER

342-39TH ST.

P. 0..BOX 1331

2665 COLUMBIA ST.

P. 0. BOX 114

YOUK EXPRESSWAY

30 LORRAINE AVE.

30 ROCKEFELLER PLAZA

446 MORGAN ST.

1583 EAST 31ST ST.

5700 W. ROOSEVELT RD.

550 DAVISVILLE RD.,P 0 BOX 96

P 0 BOX 500

BRACKENRIDGE WORKS, RIVER AVE.

2530 CRESCENT DR.

4444 WEST IRVING PARK RD.

220 PASADENA AVE.

City, State, Zip

HARRISBURG, PA 17105

DALLAS, TX 75222

ST. PAUL, MN 55101

BROOKLYN, NY 11232

RICHMOND, IN 47374

TORRANCE, CA 90503

GAINESVILLE, FL 32601

NEW CUMBERLAND, PA 17070

MT VERNON, NY 10553

NEW YORK, NY 10020

CINCINNATI, OH 45206

CLEVELAND, OH 44114

CHICAGO, IL 60650

WARMINISTER, PA 18974

BEAVERTON, OR 97077

BRACKENRIDGE, PA 15014

BROADVIEW, IL 60153

CHICAGO, IL 60641

SOUTH PASADENA, CA 91030

10-2 REV E, JAN 1980


Fig. &

Index Tektronix Serial/Model No.

No. Part No. Eft Dscont Qty 1 2 3 4 5 Name

&

Description

Mfr


1-1

-2

-3

-4

-5

-6

-7

-8

-9

366-1337-04

214-1616-00

366-1337-03

214-1616-00

366-1322-04

366-1322-06

366-1322-02

366-1322-01

333-1444-02

672-0058-00

211-0016-00

-10 337-1845-00

-11 211-0069-00

210-0405-00

-12 337-1870-00

-13 211-0069-00

-14 200-1232-00

-15 210-0405-00

-16 401-0127-01

-17

-18 136-0252-04

-19 136-0327-01 BO

136-0263-04 B021785

-20 129-0437-00

-21

-22 380-0322-00

-23 401-0127-01

-24 337-1844-00

-25 211-0069-00

-26 200-1232-00

-27 210-0405-00

-28 401-0127-01

-29 214-1863-01

-30 214-1875-01

-31 214-1579-00

-32 214-1127-00

-33 380-0244-01

-34 380-0244-00

-35

-36 337-1877-00

-37 211-0069-00

-38 129-0437-00

-39 129-0436-00 B010100 B022132

129-0436-01 B022133

337-1868-00 B010100 B022132

337-1868-01 B022133

-40 129-0312-00

2

1

1

1

1

2

1

1

1

1

1

2

2

1

1

1

1

1

1 KNOB:GRAY— VOLTS/DI

1 . SPR,HLCL,TRSN:0.23 ID X 0.282 OD X 0.15"L

1 KNOB:

1 SPR,HLCL,TRSN:0.23 ID X 0.282 OD X 0.15"L

1 KNOB:

1 KNOB:GRAY— INT

2 KNOB: DARK GRAY— VAR

2 KNOB: GRAY— POS

1 METER,ELEC FREQ:(SEE M676 EPL)

1 PANEL,SIDE:221

1 CKT BOARD ASSY:INPUT HORIZ AND VERTICAL

(ATTACHING PARTS)

2 SCREW.MACHINE:4-40 X 0.625 INCH.PNH STL

-

1

1

1

CKT BOARD ASSY INCLUDES:

SHLD,ELECTRICAL:PREAMPLIFIER,INNER


SCREW,MACHINE:2-56 X 0.125 INCH.PNH STL

NUT,PLAIN,HEX.:2-56 X 0.188 INCH.BRS

1

2

1

1

26

1

1

1

5

5

1

1

1

1

3

SHLD,ELECTRICAL:ATTENUATOR FRONT



COVER,RTRY SW:CIRCUIT BOARD



80009

77250

80009

337-1870-00

OBD

200-1232-00

73743 2X12157-402

ROTOR,ELEC SW:W/CONTACTS

CKT BOARD ASSY:— PREAMPLIFIER(SEE A2 EPL)

80009

22526

00779

SOCKET,PIN TERM:FOR 0.025 INCH SQUARE PIN 22526

80009

401-0127-01

75060-007

86281-2

48059

129-0437-00

HOUSING,SWITCH:POLYCARBONATE


SHLD.ELECTRICAL:PREAMPLIFIER,OUTER



COVER,RTRY SW:CIRCUIT BOARD






SPRING,DETENT:0.59 ID X 0.08 W X 0.01 THK

ROLLER,DETENT:0.125 DIA X 0.125 INCH L



CKT BOARD ASSY:INPUT(SEE A1 EPL)

SHLD,ELECTRICAL:INPUT CPLG SWITCH,REAR


80009

80009

80009

80009

80009

80009

80009

80009

80009

80009

83385

80009

77250

73743

80009

80009

80009

77250

366-1337-04

214-1616-00

366-1337-03

214-1616-00

366-1322-04

366-1322-06

366-1322-02

366-1322-01

333-1444-02

672-0058-00

OBD

337-1845-00

OBD

2X12157-402

380-0322-00

401-0127-01

337-1844-00

OBD

80009 200-1232-00

73743 2X12157-402

80009

80009

80009

80009

80009

80009

80009

401-0127-01

214-1863-01

214-1875-01

214-1579-00

214-1127-00

380-0244-01

380-0244-00

80009 337-1877-00

77250 OBD

SPACER,POST:0.165 L.W/2-56 TAP 1 END,BRS 80009

80009

.

80009

SHLD,ELECTRICAL:VOLTS PER DIVISION SWITCH 80009

.

SHIELD,ELEC:TIME-VOLTS DIV 221 80009

80009

129-0437-00

129-0436-00

129-0436-01

337-1868-00

337-1868-01

129-0312-00

REV I, JAN 1980 10-3


Fig. &

Index Tektronix Serial/Model No.

No. Part No. Eft Dscont Qty 1 2 3 4 5

1-41 361-0569-00

-42 131-0787-00

-43

131-0608-00

136-0252-04

-44 136-0350-01

-45 136-0366-01

-46 210-0774-00

-47 210-0775-00

-48 337-1869-00

-49 260-0984-01

-50 260-0723-00

-51

-52 210-0933-00

Name & Description

Mfr


1

30

. .

. .

80009 361-0569-00

22526 47359

2 . .

22526 47357

43 . .

22526 75060-007

13 . .

1 . .

80009

80009

136-0350-01

136-0366-01

1 .

EYELET,METALLIC:0.152 00 X 0.245 INCH L,BRS 80009 210-0774-00

1 . .

80009 210-0775-00

1 . .

SHLD,ELECTRICAL:INPUT CPLG SW FRONT 80009 337-1869-00

1

2

. .

. .

2 . .


79727 G-128SPC/

79727 GF126-0028

2 .

.

08530 OBD

-53

-54 210-0933-00

4 . .


4 .

.

08530 OBD

-55

-56

-57

-58

337-1868-00

200-1480-00

200-1468-00

437-0146-01

-59 211-0019-00

-60 211-0166-00

1 . . SHLD,ELECTRICAL:VOLTS PER DIVISION SWITCH 80009 337-1868-00

3 COVER,SLIDE SW:DARK GRAY PLASTIC 80009 200-1480-00

1 COVER,CORD WRAP:PROBE,UPPER

1 CABINET,SCOPE:TOP & BOTTOM

80009

80009

200-1468-00

437-0146-01


2 SCREW,MACHINE:4-40 X 1.0 INCH.PNH STL

2 SCREW,MACHINE:4-40 X 1.750,PNH,STL,CD PL

83385 OBD

83385 OBD

-

-61

-62 131-0608-00

-63 131-1172-00

-64

-65

-66

-67 342-0205-00

136-0582-00

-68 136-0555-00

131-0371-00 BO

-76 378-0691-00

-77

-78

-79

-80

348-0254-01

136-0252-04

136-0328-02

253-0154-00

331-0445-00 XB023860

386-1999-00

361-0593-00

354-0423-00

337-1458-00

4 .

1 CKT BOARD ASSY:— AMPLIFIER(SEE A3 EPL)

3 .

TERMINAL,PIN:0.365 L X 0.25 PH,BRZ,GOLD PL

1 .

76 .

15

4

1

1 .

1 .

SKT,PL-IN ELEK:ELECTRON TUBE,11 CONTACT

7 . . CONTACT,ELEC:FOR NO.26 AWG WIRE

1

.

.

.

SHLD,ELECTRON T:CATHODE RAY TUBE

80009 348-0254-01

22526 47357

80009

22526

131-1172-00

75060-007

80009 136-0555-00

98278 122-0182-019

-69

-70

-74

-75

131-1109-01 B023170

131-0707-00 BO

131-0707-00 B023170

352-0163-01

198-2209-00

198-3183-00 B023550

131-0707-00

352-0161-00

B010100 B023549

11

4

.

. .

-71 200-1238-02 B010100 B023549

200-1238-01 B023550

4 .

4 . COVER.BAT SET:PLASTIC,BLACK

-72 253-0153-00 FT .

-73 146-0016-01 B010100 B023549 PK .

146-0026-00 B023550 PK .

80009

22526

131-1109-01

47439

11 . . CONNECTOR,TERM.:22-26 AWG,BRS& CU BE GOLD 22526 47439

1 .

CONN BODY,PL,EL:5 WIRE BROWN 80009 352-0163-01

-

2 BATTERY ASSY:(SEE BT632/BT633 EPL)

1 . WIRE SET,ELEC:

80009

80009

18121

19209

19209

200-1238-02

200-1238-01

P7/PVC

41B906F003-G1

41B906FD02-G1

80009 198-2209-00

1 .

1 .

HLDR.TERM CONN:3 WIRE BLACK

80009 198-3183-00

1 .

CONNECTOR,TERM. : 22526 47439

80009 352-0161-00

1 FILTER,LT,CRT:BLUE

1 MASK,CRT SCALE:

1 SUPPORT,CRT:FRONT

1 SPACER,ELCTRN T:FRONT

1 RING,SPRT,CRT:RUBBER

00779 86282-2

18121 MT8

80009 343-0205-00

80009 136-0582-00

80009 378-0691-00

80009 331-0445-00

80009 386-1999-00

80009 361-0593-00

80009 354-0423-00

80710 337-1458-OO-D

-81

-82

386-2679-00

211-0213-00


1 SPRT,CRT SHLD:REAR

1 SCREW,MACHINE:4-40 X 0.312 INCH.PNH NYLON

80009

23050

386-2679-00

OBD

10-4 REV I, JAN 1980


Fig.

&

Index

No.

1-83

-84

-85

-86

-87

-88

-89

-90

-91

-92

-93

Tektronix

Part No.

131-0608-00

131-1172-00

136-0252-04

136-0328-02

161-0078-00

214-0579-00

253-0056-00

253-0154-00

342-0213-00

337-1871-00

-94 211-0163-00

Serial/Mode! No

Eff Dscont Qty 1 2 3 4 5 Name

&

Description

1 CRT BOARD A S S Y : — P O WER SUPPLY(SEE A4 EPL)

10 . T E R M I N A L , P I N :0.365 L X 0.25 PH,BRE,GOLD PL

1 . CONTACT,E L E C : C R T CARD GROUND

33 . SOCRET.PIN T E RM:U/W 0.016-0.018 DIA PINS

10 . SOCRET.PIN TERM .-HORIZONTAL

1 . CABLE A S S Y ,P W R , :2 W I R E , 48 INCH LONG

5 . TERM,TEST P O I N T :BRS CD PL

1 . C U S H I O N :POLYURETHANE FOAM,PRESSURE SENS

4 . T A P E , P R E S S . S E N S : 0 .125"THR

1 . INSULATOR,FILM:ELECTRON TUBE SHIELD

1 . SHLD, ELE C T R I C A L .-TRANSFORMER

(ATTACHING PARTS)

1 S C R E W , M A C H I N E :2-56 X 0.188 I N C H ,FLH NYLON

-95

-96

129-0439-00

-97

-98

-99

210-0406-00

211-0008-00

210-1178-00

1

2

S P A C E R , P O S T : 0 . 690 L.W/2-56 THD,BRASS

TRANSISTOR:(SEE Q622.Q626 EPL)

2

2

(ATTACHING PARTS)

N U T , P L A I N ,H E X . :4-40 X 0.188 INCH,BRS

S C R E W , M A C H I N E :4-40 X 0.25 INCH.PNH STL

2 .

-100 342-0202-00 B010100 B022705

342-0332-00 B022706

-101 344-0255-00

-102 342-0176-01

-103 200-1467-00

-104 334-2117-00

-105 348-0254-00

-106 348-0285-00

-107 355-0181-00

-108 200-1400-00

010-0269-00 B010100 B022874

010-0269-01 B022875

-109 013-0107-02

- n o

204-0594-00 B010100

B022874

- i n

-112

204-0594-04 B022875

200-1280-00

344-0024-00

B010100 B022874X

BO 10100 B022874X

-113 200-1281-00 BO 10100 B022874X

175-0940-01 B022875

-114 175-1498-00 B010100

B022874

175-1498-01 B022875

2 . I N S U L A T OR,PLATE:TRANSISTOR

2 INSULATOR PLATE:TRANSISTOR,SILICONE RUBBER

2 C L I P , E L ECTRICAL:FUSE MOUNT

1 . I N SULATOR,FILMiPOWER SUPPLY CARD

1 COVER,CORD W R A P:PROBE,LOWER

1 LABEL,I D E N T : W A R N I N G FOR 22

4 F O O T , C A B I N E T : 0 . 344 H X 0.285 W X 0.8"L

1 F L I P - S T A N D , C A B : 1 94 H X 3.424 INCH WIDE

2 S T U D , C R Y G , H D L : 0 . 312 DIA X 0.50 INCH LONG

1 COVER,PLU G : P O W E R CORD

1 PROBE,VOLTAGE:

1 P R O B E , V O L T A G E :1M OHM/200K OHM,DARK GRAY

1 . T I P ,TEST PROD:RETRACTABLE HOOK

1 . B O D Y , P R O B E : 5 X

1 . BODY ASSY,PROBE:

1 . COVER,ELEC CLIP:YELLOW VINYL

1 . C L I P , E L E CTRICAL:ALLIGATOR TYPE

1 . CABLE N I P ,E L E C :0.125 ID-0 174 SQ X 0.75

1 . L E A D , ELECTRICAL:PROBE COMMON W/CLIP

1 . CABLE A SSY,SP:48.55 INCH LONG

1 . CABLE A S S Y , R F :

Mfr


22526 47357

80009 131-1172-00

22526

00779

75060-007

86282-2

16428 KG 1212 7

80009 214-0579-00

04963 4116

18121 MTS

80009 343-0213-00

80009 337-1871-00

95987 N - 2 5 - 0 .19

80009 129-0439-00

73743 2X12161-402

83385 OBD

49671 DF 137A

01295 10-21-023-106

08530 OBD

80009 344-0255-00

80009 342-0176-00

80009 200-1467-00

80009 334-2117-00

80009 348-0254-00

80009 348-0285-00

80009 355-0181-00

80009 200-1400-00

80009 010-0269-00

80009 010-0269-01

80009 013-0107-02

80009 204-0594-00

80009 204-0594-04

80009 200-1280-00

76545 56896-000

80009 200-1281-00

80009

80009

80009

175-0940-01

175-1498-00

175-1498-01

REV G, JAN 1980 http://manoman.sqhill.com

221 OSCILLOSCOPE

ACCESSORIES

Fig. &

Index

No.

2 - 1

- 2

- 3

-4

Tektronix

Part No.

0 1 6 - 0 1 9 9 - 0 1

0 1 6 - 0 5 1 2 - 0 0

3 4 6 - 0 1 0 4 - 0 0

1 5 9 - 0 0 8 0 - 0 0

0 7 0 - 1 5 7 2 - 0 0

0 7 0 - 1 5 7 3 - 0 1 ,

Serial/Model No.

Eff Dscont

1

1

1

2

1

1

Qty

1 2 3 4 5

Name & Description

V I E W I N G H O O D :

C A S E , C A R R Y I N G :

S T R A P , C A R R Y I N G :

F U S E ,C A R T R I D G E : 0 . 2 A ,2 5 0 V , S L O W - B L O W

M A N U A L , T E C H : O P E R A T O R S ( N O T S H O W N )

M A N U A L , T E C H : S E R V I C E ( N O T S H O W N )

Mfr

Code M fr Part Number

8 0 0 0 9

8 0 0 0 9

1 7 5 1 6

7 5 9 1 5

8 0 0 0 9

8 0 0 0 9

0 1 6 - 0 1 9 9 - 0 1

0 1 6 - 0 5 1 2 - 0 0

4 1 8 8 - B A

2 1 3 2 0 0

0 7 0 - 1 5 7 2 - 0 0

0 7 0 - 1 5 7 3 - 0 0

REV. C FEB 1976

221 OSCILLOSCOPE

CALIBRATION TEST EQUIPMENT REPLACEMENT

Calibration Test Equipment Chart

This chart compares TM 500 product performance to that of older Tektronix equipment. Only those characteristics where significant specification differences occur, are listed. In some cases the new instrument may not be a total functional replacement. Additional support instrumentation may be needed or a change in calibration procedure may be necessary.

Comparison of Main Characteristics

DM 501 re p la c e s 7D13

PG 501 re p la c e s 107

108

PG 501 - R is e tim e less th a n

3.5 ns in to 50 fJ.

PG 501 - 5 V o u tp u t pulse;

3.5 ns R isetim e

107 - R is e tim e less th a n

3.0 ns in to 50 O.

108 - 10 V o u tp u t p u lse

1 ns R isetim e


108

111

PG 502 - 5 V o u tp u t

PG 502 - R is e tim e less th a n

1 ns; 10 ns

P re trig g e r p u ls e d e la y

108 - 10 V o u tp u t

111 - R is e tim e 0.5 ns; 30 to 250 ns

P re trig g e r p u lse d e la y

PG 508 rep la ce s 114

115

2101


P e rfo rm a n c e o f re p la c e m e n t e q u ip m e n t is th e sam e or b e tte r th a n e q u ip m e n t b e in g re p la ce d .

PG 506 - P o s itiv e -g o in g trig g e r o u tp u t s ig nal at least 1 V;

H ig h A m p litu d e o u tput, 60 V.

106 - P o s itiv e a n d N e g a tive g o in g trig g e r o u tp u t sig n a l, 50 ns and 1 V;

H ig h A m p litu d e o u tp u t,

100 V.

067-0502-01 PG 506 - Does n o t have c h o p p e d fe a tu re .

0502-01 - C o m p a ra to r o u tp u t can be a lte rn a te ly c h o p p e d t o a re fe r e n ce volta ge .

SG 503 re p la c e s 190,

190A, 190B SG 503 - A m p litu d e ra n g e

5 m V t o 5.5 V p-p.

190B - A m p litu d e ra n g e 40 mV to 10 V p-p.

191

067-0532-01 SG 503 - F re q u e n c y ran g e

250 k H z to 250 M Hz.

0532-01 - F re q u e n c y ran ge

65 M H z to 500 MHz.

SG 504 rep la ces

067-0532-01 SG 504 - F re q u e n c y ran g e

245 M H z to 1050 M Hz.

0532-01 - F re q u e n c y ran g e

65 M H z to 500 MHz.

067-0650-00

T G 501 rep la ce s 180,

180A

181

184

2901

TG 501 - T rig g e r o u tp u tslaved to m a rke r o u tp u t fro m 5 sec th ro u g h 100 ns. O ne tim e -m a rk can be g e n e ra te d at a tim e .

T G 501 - T rig g e r o u tp u tslaved to m a rke t o u tp u t fro m 5 sec th ro u g h 100 ns. O ne tim e -m a rk ca n be g e n e ra te d at a tim e .

T G 501 - T rig g e r o u tp u tslaved to m a rk e r o u tp u t fro m 5 sec th ro u g h 100 ns.

O ne tim e -m a rk ca n be g e n e ra te d at a tim e.

180A - T rig g e r p u ls e s 1 ,1 0 ,

100 Hz; 1 ,1 0 , and

100 kHz. M u ltip le tim e -m a rk s can be g e n e ra te d s im u lta n eo usly.

181 - M u ltip le tim e -m a rk s

184 - S ep a ra te trig g e r pu lse s of 1 and 0.1

sec; 10, 1, and 0.1

ms; 10 and 1 /is.

2901 - S e p a ra te trig g e r pulses, fro m 5 sec to 0.1 /is.

M u ltip le tim e -m a rk s can be g e n e ra te d s im u lta n eo usly.

NOTE: All TM 500 generator outputs are short-proof. All TM 500 plug-in instruments require TM 500-Series Power Module.

REV B, JUN 1978

Tektronix 221 Instruction Manual

TEKTRONIX

OSCILLOSCOPE

SERVICE

INSTRUCTION MANUAL

TABLE OF CONTENTS

OPERATING INFORMATION

AND SPECIFICATIONS

FUNCTIONS OF

CONTROLS AND CONNECTORS

PREVENTIVE MAINTENANCE

CIRCUIT DESCRIPTION

BLOCK DIAGRAM

CIRCUIT OPERATION

CALIBRATION

TROUBLESHOOTING AIDS

CORRECTIVE MAINTENANCE

REPLACEABLE

ELECTRICAL PARTS

CROSS INDEX— MFR. CODE NUMBER TO MANUFACTURER

DIAGRAMS

CIRCUIT BOARD ILLUSTRATIONS

BLOCK DIAGRAM

REV. APR 1974

VO LTAG ES AND W AVEFORM S

Voltage Measurements

Waveform Measurements

Test Oscilloscope

\

/

n

REPLACEABLE

MECHANICAL PARTS

ABBREVIATIONS

CROSS IN D E X -M F R . CODE NUMBER TO MANUFACTURER

CALIBRATION TEST EQUIPMENT REPLACEMENT

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