Audio research classic 120 pwr schematic

Page 1

R70 R31 5.11K
-35.7V

121K R33 420v

07 56 PF . +1 78V C11 .01 V3 3 R59
R47

PROPRIETARY NOTICE: THIS DRAWING CONTAINS PATENTED. +330V
PATENT APPLIED FOR, AND/OR OTHER CIRCUITRY CONSIDERED +32°V
PROPRIETARY BY AUDIO RESEARCH CORPORATION AND IS

FURNISHED ON A CONFIDENTAL BASIS FOR IDENTIFICATION
PURPOSES ONLY. + 31v

925 R27
82.5K 140K

1 .7K 1.7K

R40
1.7K 1.7K

AUDIO RESEARCH CORPORATION +330V

6801 SHINGLE CREEK PARKWAY 03 55 PF '
MINNEAPOLIS, MN 55430

2°" o CLASSIC 120 AMPLIFIER .
PAGE 1.0F 2 5-18-90 COM

Page 2

T2 53 R72 +41 3"
$015 300K . +42°V F2 .25A 973 l D s 1 N5359A 1 N9168 3°"
L FAN - . . Dz .
mu m + 031,361 201 mm
: : : - J 32 M4 G 5 352x320A1323 1 N4740A D3
A A ' +333.8V +316.2V R73
R71 \ 4.99K
r; czs-So 301K

FAN RED 6 x 2.0

D14
TRIM BLK GRN 56 .01 R83 I 1N9168
0 019-24 052
n V9 RS410 6 00 -01 204 392" +306"
- 1N5535A R76
- GRN 100

100K
GEN 885
WHT 100
GRN
GEN 100
BRN

RY1 1N4005 R67
' - 17.8K
- - 1.. I

r---

RVQ
00K '

' S
o 2017 R97
"1 a I-z' TL431 i
'- 127K
0" ' BLU ' 121K
""" - mm
. , .
3"" 1°° 7615CT +15,
F1 6 *2" m -
.629 w L22
" * HV
-
- C47 680 E R106
1K
1N4oos .3
R67 "
10
013
BLK WHT GRN 2N4401 1N91GB
CHASSIS

PROPRIETARY NOTICE: THIS DRAWING CONTAINS PATENTED.
120 VAC 50,60 HZ PATENT APPLIED FOR, AND/OR OTHER CIRCUITRY CONSIDERED CLASSIC 120 AMPLIFIER
PROPRIETARY BY AUDIO RESEARCH CORPORATION AND IS POWER SUPPLY

AUDIO RESEARCH CORPORATION

6801 SHINGLE CREEK PARKWAY
MINNEAPOLIS, MN 55430

FURNISHED ON A CONFIDENTAL BASIS FOR IDENTIFICATION
PURPOSES ONLY. PAGE 2 OF 2 5-25-90