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