Electrical
Parts
List—7D
14
Al
HIGH
FREQ
COUNTER
Circuit
Board Assembly
(cont)
Tektronix Serial/Model
No.
Ckt.
No.
Part
No.
Eft
Disc
Description
Transistors
(cont)
Q252
151-0345-00
B010100
B019999
Silicon
PNP
Micro-Tee, very
High Freq.
Q252
151-0362-00
8020000
Silicon
PNP
SMT1105
Q254
*151-0294-00
Silicon
PNP
High
Freq. Tek Spec
Q259
151-0220-00
Silicon
PNP
TO-18
2N4122
Q270
*151-0294-00
B010100
B010359
Silicon
PNP
High
Freq. Tek Spec
Q270
*153-0598-00
B010360
Silicon
PNP
Tek
selected
Q275
151-0345-00
B010100
B019999
Silicon
PNP
Micro-Tee,
very High
Freq.
Q275
151-0362-00
B020000
Silicon
PNP
SMT1105
Q278
151-0345-00
B010100
B019999
Silicon
PNP
Micro-Tee,
very
High Freq.
Q278
151-0362-00
B020000
Silicon
PNP
SMT1105
Q280
*151-0294-00
B010100
B010359
Silicon
PNP
High
Freq. Tek Spec
Q280
*153-0598-00
B010360
Silicon
PNP
Tek
selected
Q288
151-0190-00
Silicon
NPN
TO-92
2N3904
Q290
*151-0212-00
Silicon
NPN
TO-18
Tek
Spec
Q317
*151-0134-00
Silicon
PNP
TO-5
Replaceable
by 2N2905
Q339
151-0190-00
Silicon
NPN
TO-92 2N3904
Q341
151-0282-00
Silicon
NPN
TO-72 2N5179
Q345
151-0282-00
Silicon
NPN
TO-72
2N5179
Q353
151-0190-00
Silicon
NPN
TO-92
2N3904
Q356
151-0220-00
Silicon
PNP
TO-18
2N4122
Q359
151-0190-00
Silicon
NPN
TO-92
2N3904
Q362
*151-0230-00
B010100
B010359
Silicon
NPN
TO-105
Selected
from RCA 40235
Q362
151-0282-00
B010360
Silicon
NPN
TO-72
2N5179
Q364
*151-0230-00
B010100
B010359
Silicon
NPN
TO-105
Selected
from RCA 40235
Q364
*151-0259-00
B010360
Silicon
NPN
TO-106 Selected
from 2N3563
Q374
*151-0230-00
B010100
B010359
Silicon
NPN
TO-105
Selected
from RCA 40235
Q374
151-0282-00
B010360
Silicon
NPN
TO-72
2N5179
Q376
*151-0230-00
B010100
B010359
Silicon
NPN
TO-105
Selected from RCA 40235
Q376
151-0259-00
B010360
Silicon
NPN
TO-106
Selected
from 2N3563
Q382
*151-0230-00
B010100
B010359
Silicon
NPN
TO-105
Selected from RCA 40235
Q382
151-0282-00
B010360
Silicon
NPN
TO-72
2N5179
Q384
*151-0230-00
B010100
B010359
Silicon
NPN
TO-105
Selected from RCA 40235
Q384
151-0259-00
B010360
Silicon
NPN
TO-106 Selected from 2N3563
Q390
*151-0230-00
B010100
B010359
Silicon
NPN
TO-105 Selected from RCA 40235
Q390
151-0282-00
B010360
Silicon
NPN
TO-72 2N5179
Q392
*151-0230-00
B010100
B010359
Silicon
NPN
TO-105
Selected
from RCA 40235
Q392
151-0259-00
B010360
Silicon
NPN
TO-106
Selected from 2N3563
Q400
*151-0230-00
B010100
B010359
Silicon
NPN
TO-105
Selected from RCA 40235
Q400
151-0282-00
B010360
Silicon
NPN
TO-72 2N5179
Q402
*151-0230-00
B010100
B010359
Silicon
NPN
TO-105
Selected from RCA 40235
Q402
151-0259-00
B010360
Silicon
NPN
TO-106
Selected
from 2N3563
Q405
151-0282-00
Silicon
NPN
TO-72
2N5179
Q407
151-0282-00
Silicon
NPN
TO-72
2N51
79
Q418
151-0220-00
Silicon
NPN
TO-18
2N4122
Resistors
Resistors are fixed, composition, ±10% unless otherwise indicated.
R100
315-0625-00
6.2 MΩ
¼W
5%
R101
321-1485-00
1.11
MΩ
¼w
Prec
1%
R102
315-0395-00
3.9 MΩ
¼W
5%
R103
317-0510-00
51
Ω
¼W
5%
R104
321-0481-00
1 MΩ
¼w
Prec
1%
6-6
Summary of Contents for 7D14
Page 4: ...7D14 ...
Page 11: ...Operating Instructions 7D14 Fig 2 1 7D14 front panel controls and connectors 2 2 ...
Page 33: ... 3 13 Fig 3 11 Logic diagram for Zero Cancel Logic stage Circuit Description 7D14 ...
Page 38: ...3 18 Fig 3 16 Time Base and Control circuit detailed block diagram Circuit Description 7D14 ...
Page 44: ...NOTES ...
Page 46: ...NJ Fig 4 1 Electrode configuration for semiconductors in this instrument I ...
Page 68: ...NOTES ...
Page 96: ... 7DI 4 DIGITAL COUNTER UNIT ...
Page 98: ...GRS 0371 BLOCK DIAGRAM ...
Page 99: ......
Page 103: ...0 0 I 200 mV 500 µs 0 001 200 mV 500 µs 0 001 MHz 00 mV E 00 µs 0 001 MHz ...
Page 106: ...1 ...
Page 110: ...A2 Logic Circuit Board Assembly jQ798i 798 jc743 CR744t uni R724 R742 JL744S FrR796 ...
Page 113: ......
Page 114: ...P 0 A2 LOGIC BOARD ...
Page 121: ... A B D t F H J NPR Tj ZWX V A AC M AEA HUM qAZ DEF HJ N P R S T J V V7X y ABM APAI AA 7DI4 ...
Page 129: ......
Page 130: ...4 7D14 DIGITAL COUNTER ...