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INSTRUCTION MANUAL
Digital MultImeter
Modal,
172A.
173A
REPLACEABLE
PARTS
TRANSISTORS
(Q)
Circuit
Mfr.
Mfr.
Keithley
Desig.
Description
Code
Desig.
Part
No.
"300"
SERIES
(Schematic
274040)
Q401
-
~402
Q403
Q404
Q4o5
Q50 1
Q5o2
Q601
~602
PNP, Case TO-106
........
F-l
2N4355
TG-90
PNP, Case TO-106
........
F-l
2N4355
TG-90
PNP, Case TO-106
........
F-l
2N4355
TG-90
PNP, Case TO-106
........
F-l
2N4355
TG-90
PNP, Case TO-106
........
F-l
2N4355
TG-90
PNP, Case TO-106
........
F-l
2N4355
TG-90
PNP, Case R-110.
........
F-l
51763
TG-33
PNP, Case R-110.
........
F-l
Sl763 !
X-33
PNP, Case R-110.
........
F-l
Sl7638
TG-33
PNP, Case R-110.
........
F-l
Sl7638
TG-33
PNP, Case R-110.
........
F-l
Sl7638
TG-33
PNP, Case R-110.
........
F-l
517638
TG-33
PNP, Case R-110.
........
F-l
517638
TG-33
PNP, Case R-110.
........
F-l
Sl7638
TG-33
"400"
SERIES
(Schematic
26758C)
PNP, Case TO-5
. . . . . . . . .
RCA
2N4032
NPN, Case TO-33.
. . . . . . . .
MOT
2N3300S
PNP, Case TO-5
. . . . . . . . .
RCA
2N4032
NPN, Case TO-106
. . . . . . . .
F-l
PNP, Case TO-92
MOT
"500"
SERIES
(Schematic
29145E)
(PC-Board
446)
TG-92
TG-II7
TG-92
TG-39
TG-61
Transistor
Array
-
Ill-Pin
DIP
. . RCA
CA3086
NPN, Case TO-106.
. . . . . . . . F-l
2N5134
"600"
SERIES
(Schematic
29145E)
(PC-Board
446)
IC-53
TG-65
N-Chan,
JFET.
. . . . . . .
. . K-l
-----
TG-128
Transistor,
TG-128,
(Selected).
. K-l
___--
28958A
N-Ghan,
JFET.
. . . . . . . . . . K-l
_----
TG-128
Transistor,
TG-128,
(Selected).
. K-l
-----
28958A
7-17.
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