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Koch TWINTONE II Drawings
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Normal
INPUTS
Bright Clean
R2
10K
R1
1M
+E
C10
C11
470p
470p
R11
150K
1W
C8
R14
470K
R15
220K
REL1
47n
6
V1B
R13
1M
7
8
C12
270p
4
5
C9
CW
R12
P5-A
2K7
680n
A500K
KOCH
GUITAR ELECTRONICS
Amersfoort
The Netherlands
+E
TREBLE
BASS
MID
R3
100K
1W
C2
1
270p
CW
R5
1
V1A
100K
C3
2
100n
CW
C4
3
C1
47n
CW
R4
1K5
22u
REL2
+E
C13
2n2
R18
100K
1W
C14
4n7
V2A
1
R20
220K
R17
2
47K
6
3
P5-B
A500K
CW
R16
R19
470K
1K5
C15
470n
DRIVE
Copyright 2005, Koch Guitar Electronics
+D
VOLUME
R6
100K
1W
C6
100n
P1
6
V2B
B200K
2
7
P2
A200K
8
P3
C5
CW
R7
B20K
P4
A1M
1K5
47n
R8
100K
+D
R24
R27
100K
100K
1W
1W
C17
C16
R22
470p
470K
47n
1
V3A
V3B
R25
470K
R21
2
7
470K
3
R23
R26
820E
1K5
470K
R9
220K
8
C7
R10
33K
22u
3
+D
TREBLE
BASS
MID
R30
C18
470K
7
P11
470p
CW
R29
B1M
P6
6
33K
C19
B200K
P7
C21
CW
22n
A1M
C20
8
120p
R28
P8
CW
22n
B20K
1W
C22
4n7
PRESENCE
DRAWN:
DATE:
TWINTONE II
Dolf Koch
25-07-2005
SERIAL NRS:
x1434 - x3070
V1
- 12AX7LM
V2,3 - 12AX7
REL3
to fx mixer
CW
C23
270p
R31
100K
1W
CW
P12
A200K
R32
220K
1W
VOLUME
MARK
2.0
PAGE:
PRE-AMP
1 of 5

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Summary of Contents for Koch TWINTONE II

  • Page 1 820E B20K 470K 470K 220K 680n A500K 470n DRIVE PRESENCE VOLUME KOCH DRAWN: DATE: MARK TWINTONE II GUITAR ELECTRONICS Dolf Koch 25-07-2005 Copyright 2005, Koch Guitar Electronics Amersfoort SERIAL NRS: PAGE: PRE-AMP The Netherlands x1434 - x3070 1 of 5...
  • Page 2 FX Mix REVERB 470K reverb can: Accutronics 220K 4AB3C1B 100n 100K KOCH DRAWN: DATE: MARK TWINTONE II GUITAR ELECTRONICS Dolf Koch 25-07-2005 Copyright 2005, Koch Guitar Electronics Amersfoort SERIAL NRS: PAGE: FX MIXER The Netherlands x1434 - x3070 2 of 5...
  • Page 3 470K 100n RECORDING 100u 220E 100mH 220E 470n 220E HEADPHONES KOCH DRAWN: DATE: MARK TWINTONE II GUITAR ELECTRONICS Dolf Koch 25-07-2005 Copyright 2005, Koch Guitar Electronics Amersfoort SERIAL NRS: PAGE: POWER AMP The Netherlands x1434 - x3070 3 of 5...
  • Page 4: Standby Power

    R104 R101 Green V1- V4 V5-V6 R102 STANDBY POWER filaments KOCH DRAWN: DATE: MARK TWINTONE II GUITAR ELECTRONICS Dolf Koch 25-07-2005 Copyright 2005, Koch Guitar Electronics Amersfoort SERIAL NRS: PAGE: POWER SUPPLY The Netherlands x1434 - x3070 4 of 5...
  • Page 5: Channel Switch

    REL 5 R121 R123 1N4148 1N4148 R120 R122 R124 Reverb Rhythm Volume KOCH DRAWN: DATE: MARK TWINTONE II GUITAR ELECTRONICS Dolf Koch 25-07-2005 Copyright 2005, Koch Guitar Electronics Amersfoort SERIAL NRS: PAGE: LOGIC The Netherlands x1434 - x3070 5 of 5...