Laa 500 Line Amp Pw A - Scully 280B Series Instruction And Maintenance Manual

Recorder-reproducer
Table of Contents

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Table
8-1. Schematic
Diagrams and Parts List
FIG_
QUAN
TITY
PER
ASSE
MB
LY
&
DESCRIPTION
PART
REF.
-01
NO.
8-69 Ref
LAA
5
0
0
li
ne
am2
PWA
,
"
A
"
12020
39-01
verS
.l
on
(
see
1">9.
8
68
ro
r
~
Cap
.
elctlt, 6.8
\.
F.
UO
V
1
6
4003
Cap, elctlt,
250
u
F.
l
cV
1
&40
52
Cap
.
1
kV
eer
disc
, 22
0
pF
120~
.
163000
I
Cap.
eer disc,
±20~.
50
0V
n
.
0
05 "F
163010
I
Cap.
me
t
po
ly,
f
l
at
22
uF
±
2
0
~
.
250V
f
ilm
.
167020
I
Cap.
cer disc,
±20%.
25V
0.02
uF
I
163016
Res,
var,
200
k
,
156043
Res,
carb,
I
n
!
Sl
.
1/2,1
149
1
36
10
Res.
c
arb
,
l
OO
n
15%
,
I/
UW
14
9
0
63
11
Re
s
,
1/
41-1
carb, 1.8 k
r.
!5'\;
,
1
4
9071
1
2
I
Re
s.
1/
4l-i
c
arb,
4.7 k
Q
!
5
~
,
1
49056
13
14
1
1
1
1
1
1
1
Res.
Res,
I/UW
carb,
ca
r
b,
33 k
n
i
s
'!.
I
/U
I"
1
149101
470
k~
±5
%.
149161
15
I
1
I
Xstr,
to 1
au
dio
pair
I
'lP'I/PNP
152010
16
Xstr
1
52
008
17
Xstr
1
52009
1
8
He atsink
I
dual
162365
~IFR.
PART
NO.
ET6P8
X0
40
A2
WH
11
0
5GA-T22
Type
Sfl
C28
0AE/P
220K
Type
H-2
5
3359
W2
0
4
2N4107
2N390
4
2N3906
H5C
-
2
Model 280B
Schematic Diagrams
and
Parts List
CODE
IDENT.
1\0.
8003
1
56289
5
6289
91418
80031
91418
80294
+
73445
0
U7
13
04713
73
4
4
5
1
75'1 6.B
jLf
25V
~
ACE
""--.
l
Figure
8-69.
LAA
500
Line Amp PW A
8-157/8-158

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