Keithley 485 Instruction Manual page 54

Autoranging picoammeter
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Circuit
Desig.
BTlOl
Cl01
Cl02
CR101
JlOlO
JlOll
P1009
RlOI
R102
RI03
R104
RI05
RTlOl
cl101
UlOl
u102
-
Table 6-3. Model 1768 Battery Pack, Parts List
Description
Battery Assembly, 9.6V sealed rechargeable Ni Cad
Capacitor, 250~F. 25VDC. Aluminum
Electrolytic
Capacitor, lOpF, 25VDC, Aluminum
Electrolytic
Rectifier, Schottky
Barrier, 1 N5620
Pin
Pin
Cable Assembly, 10 Conductor
Resistor, 4.7B, lo%,
lf2W.
Composition
Resistor, 4.7g, 5%, 1/4W, Composition
Resistor, 30.lkD.
l%,
1/8W, Metal Film
Resistor, 39.2kg, 1%. 1/8W, Metal Film
Resistor, 1.2Mg. 5%. ll4W.
Composition
PTC Thermister
Transistor, NPN, High Voltage (TIP-49)
Voltage Converter, 517661
Voltage Comparator, LM393
Heat Sink (used on UlOll
Standoff (Battery Board to Shield)
Battery Bracket
E2
C3
R-l-4.7
El
C2
R-764.7
E3
E3
R-88-30.1 k
Figure 6-7. Battery Pack, Component
Location Drawing.
Dwg. No. 1758-100
6-16

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