Squelch Pwa - Scully 280B Series Instruction And Maintenance Manual

Recorder-reproducer
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8-138
Table 8-1. Schematic Diagrams and Parts List
FTG.
QUANTITY PER ASSEMBLY
MFR.
CODE
PART
&
DESCRIPTION
PART
IDENT.
NO.
-01
REF.
l'-:O
.
NO.
I
I
Ref
8-60
Squelch PWA (see Fig. 8-56
200510-01
for NHA)
R8
1
Res, carb, 47 kQ ±5%,
1/
4W
149012
R6,
2
Res,
carb
,
1 kQ ±5%,
1/
4W
149011
R7
R4
1
Res,
carb
,
3.3 kQ ±5%,
149091
1/4W
R9,
2
Res, carb, 10 kQ ±5%,
1/4W
149070
Rl0
Rl1
1
Res,
carb
, 100
k
Q
±5%,
149073
1
/4~v
R3,
2
Res, carb, 1 Mll ± 5 %, 1/4W
1
49087
R12
Rl
,
2
Res,
carb,
180 kll ±5% ,
149097
R2
1/
4W
C3
1
Cap, flat film, 0.068 IlF
167018
C280AE/P68K
80031
±20%, 250V
C2
1
Cap, met polyest, rdl ld,
167080
MKT1822 ­
OOOOA
0.22 \1F ±10%, 100V
422
/
0
Cl
1
Cap, flat film, 0.22
\1
F
167020
C280AE/P220K
80031
±20%, 250V
C4
1
Cap, Ta, rdl ld, 10 \1F
171013
TAG-20-10
/
71468
±20%, 35V
35-20
R5
1
Res, carb, 47011 ±5%,
1/4W
149010
Q2-
3
Xstr
,
NPN, TO 92
152050
2N4401
04713
Q4
Ql
1
Xstr, FET, TO 92
152014
2N5461
04713
CR1-
5
Diode
153000
lN4148
03508
CR5
J01
1
Wafer assy, 8 ckt, 0.156
160011
A-2403-8A
27264
centers

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