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REPLACEABLE
PARTS
MODEL 615 ELECTROMETER
RESISTORS (Cont'd.)
circuit
De&?.
R303
X304
Value
1.5 kn
820 n
RatinK
lO%, l/4
w
lO%, l/4
w
Mfg.
Mfg.
Keithley
Fig.
Type
Code
Part No.
Part No.
Ref.
CO¶!JP
44655
KC07
R76-1.5K
24
camp
44655
RCO7
R76-820
24
TRANSISTORS
circuit
oeei*.
4301
Q302
Number
2N5184
2N5184
Mfg.
Keithley
Fig.
Code
Part No.
Ref.
02735
TG-67
24
02735
TG-67
24
READOUT BOARD (P.C.-229)
REPLACEABLE PARTS LIST
(Refer
to Schematic
Diagram
23451E for
circuit
designations).
circuit
Desig.
P401
P402
Mfg.
Mfg.
Description
Code
Part No.
Plug,
6 pins,
connect*
to 51206
73690
02-006-105-6-200
Plug,
22 pins,
connects
to 31207
73690
02-015-105-6-200
INTEGRATED CIRCUITS
Keithley
Fig.
Part No.
Ref.
w-223
25
cs-222
25
CirE"le
lIeaiR.
QA401
QA402
OA403
DeBCriDtion
Dual J-K Flip-Flop
Dual J-K Flip-Flop
Dual J-K Fliv-Flop
Mfg.
Mfg.
Ksithley
Fig.
Code
Pert NO.
Part
No.
Ref.
04713
MCS9lP
IC-9
25
04713
MC891P
IC-9
25
04713
MC89lP
IC-9
25
Dual J-K Pli&Flo;
04713
MC89OP
IC-8
Dual J-K Flip-Flop
04713
MCS9OP
IC-8
QA406
Dual J-K Flip-Flop
QA407
Quad 2 Input
Gate
QA408
Quad 2 Input
Gate
QA409
Dual J-K Flip-Flop
QA410
Dual J-K Flip-Flop
QA411
Dual J-K Flip-Flop
QA412
Dual J-K Flip-Flop
QA413
Dual J-K Flip-Flop
QA414
Dual J-K Flip-Flop
QA415
Decimal
Decoder/Driver
QA416
Decimal
Decoder/Driver
QA417
Decimal
DscodertDciver
04713
04713
04713
04713
04713
04713
04713
04713
04713
07263
07263
07263
READOUT TUBES
MC89lP
IC-8
25
MC824P
x-5
25
MCS24P
X-5
25
MC890P
IC-8
25
MC89OP
IC-8
25
MC89OP
IC-8
25
MC89OP
IC-8
25
MC89OP
IC-8
25
MC89OP
IC-8
25
U6B996079X
IC-3
25
U65996079X
IC-3
25
U6B996079X
IC-3
25
circuit
DWiR.
v401
V402
v403
"nits
Readout Tube
Tens Readout Tube
Hundreds
Readout
Tube
Mfg.
Mfg.
Keithley
Fig.
Coda
Part
No.
Part No.
Ref.
83594
85750
EV-5750
25
83594
85750
w-5750
25
83594
B5750
EV-5750
25
38
0671R
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