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Table 6-2.
Model 177 Mother
Board,
Parts
List,
(Cent.)
Circuit
Desig.
Description
Location
Sch
Peb
Keithley
Part
No.
R166
Resistor,
80.6ka
1%,
VsW
R-88-80.6k
R167
Rdsistor,
100k0,
1%,
VsW
—
—
R-88-100k
S101
Switch,
Line
Selector
C7
A4
SW-318
S102
Switch,
Line
Battery
D7
B4
SW-397
S103
Swith,
12 Station
Pushbutton
Sev
E3
SW-407
T101
Transformer,
Power
(115,
230V)
D6
AS
TR-168
T101
Transformer,
Power
(100,
200V)
D6
A5
TR-169
U101
!C,
8-Pin
Op
Amp
JFET,
TL081
C4
C5
IC-196
U102
1C,
BI-FET,
Op Amp,
LF351
D4
C4
IC-176
U103
IC,
True
RMS-TO-DC
Converter,
AD536
(TO-100)
E4
D5
IC-172-1
U104
IC,
8-Pin
Op
Amp,
741
J1
A2
IC-42
U105
IC,
4>2
Digit
Analog-Processor,
8052
H3
A2
LSI-12
U106
IC, 41/2
Digit
Logic-Processor,
7130
H4
C2
LSI-11
U107
IC,
Linear
Op-Amp
8-Pin,
LM308
G1
C2
IC-203
U108
IC,
J-FET
Input
Op
Amp, LF355
(selected)
C5
C3
IC-205
U109
IC,
Linear
Op-Amp
8-Pin,
LM308
D5
C3
IC-203
U110
IC,
CMOS
14-Stage
Binary Converter,
4060
A6
B2
IC-197
U111
CMOS/MOS
Hex
Converter,
4069
A7
C2
IC-139
VR101
Regulator,
-+-5V,
3-Term,
TO-220,
7805
E7
B5
IC-93
VR102
Regulator,
+5V,
500mA,
78M15
E8
B5
IC-194
VR103
Regulator,
~15V,
500mA, 79M15
E8
B5
IC-195
VR104
Regulator, Diode,
Selected with
R137
27699A
VR105
Zener
Diode,
4.7V
F2
C3
DZ-67
Y101
Crystal,
Quartz,
±0.01%, 100kHz
A6
B3
CR-8
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