Keithley 177 Instruction Manual page 46

Microvolt dmm, battery pack
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Table
6-3.
Model
1788
Battery
Pack,
Parts
List
Circuit
Desig.
Description
Location
Sch
Pcb
Keithley
Part
No.
BT301
D
Cells for
BT301
(4
required)
E2
BA-33
C301
Capacitor,
4.7/iF,
20V
D3
E3
C-179-4.7
C302
Capacitor, 4.7
/aF,
20V
D4
E3
C-1
79-4.7
C303
Capacitor,
1.0/iF,
250V
E4
E3
C-256-1
C304
Capacitor,
100/^F,
35V
B5
F4
C-295-100
C305
Capacitor,
lOO^F,
35V
B5
F3
C-295-100
CR301
Diode,
Silicon,
1N4148
B3
D4
RF-28
CR302
Diode,
Silicon,
1N4148
D4
E3
RF-28
CR303
Diode,
Silicon,
1N4148
D4
E3
RF-28
CR304
Diode,
Silicon,
1N4148
C5
F4
RF-28
CR305
Diode,
Silicon,
1N4148
C5
F4
RF-28
F301
Fuse,
2A, 250V,
3AG,
Ouick
blow
El
C3
FU-13
Q301
Thyristor,
SCR,
106F1
B2
C4
TG-132
Q302
Transistor,
NPN, 2N3904
B3
C3
TG-47
Q303
Transistor,
PNP,
Silicon,
TO-92
Case,
2N3905
D3
D4
TG-53
0304
Transistor,
NPN,
2N^04
D3
E4
TG-47
0305
Transistor,
NPN, 2N3904
C4
E4
TG-47
0306
Transistor,
PNP,
Silicon,
2N3905
C4
E4
TG-53
0307
Transistor,
NPN, 2N3725
D3
E3
TG-131
0308
Transistor,
NPN, 2N3725
D4
E3
TG-131
0309
Transistor,
PNP,
Silicon,
MPS-U95
C2
D3
TG-133
0310
Transistor,
PNP,
Silicon,
TO-92
Case,
2N3905
C2
D3
TG-53
R301
Resistor, 20kfi,
10%, Cermet Trimmer
C3
C3
RP-97-20k
R302
Resistor,
3300,
10%, 'AW,
Composition
B3
C3
R-76-330
R303
Resistor,
IkO,
10%,
AW,
Composition
B3
D4
R-76-1k
R304
Resistor,
3.9k0,
20%, 3W,
Wire
Wound
B2
D4
R-268-3.9k
R305
Resistor,
4.7k0,
10%,
AW,
Composition
B4
D3
R-76-4.7k
R306
Resistor,
3.3kO,
10%,
AW,
Composition
B4
C3
R-76-3.3k
R307
Resistor,
820,
10%,
AW,
Composition
D4
E3
R-76-82
R308
Resistor,
820,
10%,
AW,
Composition
D4
E3
R-76-82
R309
Resistor,
100,
10%,
AW,
Composition
B5
F4
R-76-10
R310
Resistor,
100.
10%,
AW,
Composition
B5
F4
R-76-10
R311
Resistor,
lOOkO,
1%, 1/8W,
Composition
D2
E3
R-76-100k
R312
Resistor,
lOOkO,
1%, 1/8W,
Composition
D2
E3
R-76-100k
R313
Resistor,
100k0,
1%, 1/8W,
Composition
D2
E3
R-76-100k
R314
Resistor,
6.8M,
10%,
AW,
Composition
D2
E3
R-76-6.8M
R315
Resistor,
576kO,
1%,
1/8W
D2
E3
R-88-576k
R316
Resistor,
lOOkO,
1%,
1/8W
D2
E3
R-88-100k
U301
1C,
Dual
D-Type
Flip-Flop,
4013
C4
D3
IC-103
U302
1C,
1.1V Micro-Power
Detector,
ICL8211
D2
E3
IC-177
VR301
Regulator, 8.2V, Zener,
1N765A
B3
C3
DZ-61

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