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7B53A/7B53AN 

OPTION 5

PARTS

 LIST

The 

following

 changes

 should be made to

 the appropriate parts list for this modified instrument. When ordering 

replacement

 parts specify instrument type, serial number,

 and mod number. Include the circuit number, part number, and 

description 

of

 the desired

 item.

*Parts identified 

by

 an asterisk 

are 

unique to this modified product and are not normally stocked.

Electrical 

Parts

 List

Capacitors

C900

Add

283-0092-00

0.03 µf

cer

200

 V

+80% -20%

C904

Add

290-0517-00

6.8

 µf

emt

35 V

C908

Add

281-0550-00

120 

pf

cer

500 

V

10%

C920

Add

283-0092-00

0.03 µf

cer

200

 V

+80%-20%

C924

Add

281-0511-00

22 pf

cer

500 V

10%

C926

Add

281-0605-00

200 

pf

cer

500

 

V

C929

Add

283-0010-00

0.05 

µf

cer

50

 V

C932

Add

283-0092-00

0.03

 µf

cer

200 V

+80% -20%

Diodes

CR908

Add

152-0075-00

Germanium

Tek 

Spec

CR909

Add

152-0141-02

Silicon

1N4152

CR912

Add

152-0141-02

Silicon

1N4152

CR913

Add

152-0141-02

Silicon

1N4152

CR916

Add

152-0195-00

Zener

1N751A

0.4 W, 5.1 

V,5%

CR917

Add

152-0075-00

Germanium

Tek Spec

CR918

Add

152-0141-02

Silicon

1N4152

CR920

Add

152-0195-00

Zener

1N751A

0.4 W, 5.1

 

V, 5%

CR921

Add

152-0075-00

Germanium

Tek Spec

CR932

Add

152-0075-00

Germanium

Tek Spec

Transistors

Q904

Add

151-0188-00

Silicon

2N3906

Q908

Add

151-0188-00

Silicon

2N3906

Q920

Add

151-0192-00

Silicon

Replaceable by MPS-6521

Q924

Add

151-0192-00

Silicon

Replaceable by MPS-6521

Q932

Add

151-0188-01

Silicon

Replaceable by 2N3251

Resistors

R900

Add

315-0221-00

220

 

Ω

1/4 W

5%

R904

Add

315-0563-00

56 

k

1/4 W

5%

R905

Add

315-0471-00

470 Ω

1/4 W

5%

R907

Add

315-0681-00

680

 

Ω

1/4 W

5%

R908

Add

315-0203-00

20 

k

1/4 W

5%

6

Summary of Contents for 7B53A

Page 1: ...MANUAL SUPPLEMENT TEKTRONIX 7B53A 7B53AN DUAL TIME BASE OPTION 5 INSTRUCTION MANUAL Tektronix Inc 070 1471 00 P O Box 500 Beaverton Oregon 97005 772...

Page 2: ...ect all requests for service or replacement parts to the nearest Tektronix Service Center or Field Office include the type or part number of the product and its serial number Copyright 1972 by Tektron...

Page 3: ...de to P903 or P904 Compatability The TV Sync Separator can be used with 7400 7500 7600 7700 and 7900 Series real time TEKTRONIX oscilloscopes External Graticules External graticules for the main frame...

Page 4: ...less than two fields LINE DISPLAYS 1 Variable Line Selector To obtain Variable Line Selector capabilities the DLY D TRIG control must be set to the RUNS AFTER DLY TIME position Pull the TIME DIV knob...

Page 5: ...e of Q924 The negative pulses will pass through CR918 since during the greater percentage of their duty cycle the line or horizontal sync pulses are positive and will appear to CR918 as positive pulse...

Page 6: ...in a stable display b Adjust the Clipping Level control R914 by rotating the control fully clockwise Then rotate the control counterclockwise until one or more negative going pulses in a group are dis...

Page 7: ...Triggering Amplifier SOURCE switch to TV LINE Adjust the LEVEL control to obtain a triggered display b Rotate the DLY D TRIG control out of the RUNS AFTER DLY TIME position and adjust this control to...

Page 8: ...cer 50 V C932 Add 283 0092 00 0 03 f cer 200 V 80 20 Diodes CR908 Add 152 0075 00 Germanium Tek Spec CR909 Add 152 0141 02 Silicon 1N4152 CR912 Add 152 0141 02 Silicon 1N4152 CR913 Add 152 0141 02 Sil...

Page 9: ...00 150 k 1 4 W 5 R928 Add 315 0822 00 8 2 k 1 4 W 5 R929 Add 315 0123 00 12 k 1 4 W 5 R932 Add 315 0822 00 8 2 k 1 4 W 5 R940 Add 315 0102 00 1 k 1 4 W 5 R941 Add 315 0102 00 1 k 1 4 W 5 S10 Change Sw...

Page 10: ......

Page 11: ...7B53A 7B53AN OPTION 5 TV partial SYNC SEPARATOR TRIGGER PREAMP...

Page 12: ...ince the change information sheets are carried in the manual until all changes are permanently entered some duplication may occur If no such change pages appear following this page your manual is corr...

Page 13: ...ositive and Negative going trigger output signal 50 ns and 1 V High Amplitude output 100 V 0502 01 Comparator output can be alternately chopped to a refer ence voltage SG 503 replaces 190 190A 190B 19...

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