DYNACO Stereo 80 - Audio Circuit Schematic Diagram

C3
C5B
C2
R19
R9
R4
R1
2M
.47uF
.22uF
2.0K
100pF/400v
1/2 12AT7
49
8
7
6
3
2
1
1M
V1
630V
R10
1
2
3
9
301
LEFT
INPUT
R2
301
00601P 1 3
STEREO 80 AUDIO SECTION
3 MAR 95 OFREV PAGE DWG#
R3
301
R5
301
R12 27K
3W
301
R11
6
7
8
C4
.22uF
630V
11K R13
3W
R15
R18
1K 1K
3
4
8
FB-2
EL34
V3
6DJ8
V2
EL34
V4
5
3
8
1
4
FB-3
+480V
8 ohm 4 ohm 2 ohm
C
R14 30K
5W
400V
R16
270K
R17
270K
LEFT
OUTPUTS
TRIODE ULTRALINEAR
FB-1
K1-A
FB-4
TRIODE ULTRALINEAR
K1-B
5
1
R20
2
R21
T2
3W AND 5W RESISTORS ARE METAL OXIDE
1/2W AND 1W RESISTORS ARE METAL FILM
YEL
ORN
BRN
BLK
BLU
GRN
RED
GRN/WHT
BLU/WHT
R6 2K
C1
220pF
400V
R8
6.04K
R7
12.7K
5W
2
5W
C103
C105B
C102
R119
R109
R104
R101
2M
.47uF
.22uF
2.0K
100pF/400v
1/2 12AT7
49
8
7
6
3
2
1
1M
V5
630V
R110
1
2
3
9
301
R102
301
R103
301
R105
301
R112
27K
3W
301
R111
6
7
8
C104
.22uF
630V
11K
R113
3W
R115 R118
1K 1K
3
4
8
FB-6
EL34
V7
6DJ8
V6
EL34
V8
5
3
8
1
4
FB-7
8 ohm 4 ohm 2 ohm
C
R114
30K
5W
400V
R116 270K R117 270K
RIGHT
OUTPUTS
TRIODE ULTRALINEAR
FB-5
K2-A
FB-8
TRIODE ULTRALINEAR
K2-B
5
1
R120
2
R121
T3
YEL
ORN
BRN
BLK
RED
R106
2K
C101
220pF
400V
R108
6.04K
R107
12.7K
5W
2
5W
Y3 Y4 Y7 Y8
P3 P7 P8
R22
300, 3W
R23
300, 3W
R122
300, 3W
R123
300, 3W
P4
T2F
T2G
T3G
T3F
BLU
GRN
GRN/WHT
BLU/WHT
C5A 330pF/400v
C105A 330pF/400v
P1A
50K
L IN
RIGHT
INPUT
P1B
50K
R IN
SENSITIVITY
INPUT
SENSITIVITY
INPUT
+475V
A
+475V
B
+475V
B
+475V
C
+475V
D
+475V
D
+480V
1/2 12AT7
V1
1/2 12AT7
V5