Koch TWINTONE Wiring Diagram

R1
low
68K
R2
INPUTS
high 68K
R3
1M
+E
R12
150K
1W
C7
C9
47n
470p
6
V1B
R14
470p
470K
R16
7
8
C8
R15
R13 470KG
470K
2K7
680n
KOCH
GUITAR ELECTRONICS
Amersfoort
The Netherlands
+E
TREBLE
BASS
MID
R4
100K
1W
C2
270p
CW
R6
1
V1A
100K C3
2
100n CW
C4
3
C1
47n CW
R5
1K5
22u
+E
R18
100K
1W
C11
4n7
C10
R20
V2A
1
220K
220K
R17
2
220K
3
P5-B
470KG
P5-A
CW CW
R19
C12
1K5
470n
DRIVE
c
Copyright 1995, Koch Guitar Electronics
+D
VOLUME
R8
100K
1W
100n
P1
6
V2B
220KN
7
P2
220KG
8
P3
CW
R9
22KN P4
1K5
1MG
+D
R23
R27
100K
100K
1W
1W
C14
47n
1
V3A V3B
R25
R21 470K
2 7
470K
3
R26
R22
C13
470K
470K
C15
470p
R24
1K5 22u
C5
R10
220K
C6
R11
33K
22u
+D TREBLE
BASS
MID
C16
R30
470K
470p CW
R29
P6
6
33K C17
220KN
P7
CW
22n
1MG
C18
8
P8 C20
CW
22n
R28
22KN
820
4n7
1W
PRESENCE
DRAWN: DATE:
TWINTONE
Dolf Koch march 2001
SERIAL NRS:
x631 - x760
V1 - 12AX7WA/EH
V2,3 - 12AX7
REL1
to fx mixer
P9
CW C19
1MN
270p
R31
100K
CW
1W
P10
220KG
R32
220K
VOLUME
MARK:
4.0
PAGE:
PRE-AMP
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