REFRACTOR PROFESSIONAL OVERDRIVE
22
SCHEMATIC
VA: 9V
VB: 18V
-VA: -9V
VR: 4.5V
TL072P
TL072P
TL072P
TL072P
TC1044
10k
2M
10
0k
560R
5k
1
10k
1k5
1k
5
1k
2k
15k
422k
1k
22
k
47k
27
k
12
k
15k
392k
1k8
100k
4k7
100k
560R
27k
27
k
10
0n
10
0n
68n
68n
390n
82n
390pF
1u
F
1u
F
2n2
27n
820pF
3n
9
1N
47
42
1N
34
A
1N
34
A
10
kB
10
kB
1N4001
1N4001
GND
GND
GND
GND
GND
GND
VR
VR
GND
VR
GND
100kB
10
0k
B
68k
68k
10
0k
-VA
-VA
VB
VR
PWR_GND
VB
VA
PWR_GND
GND
PWR_GND
PWR_GND
VR
1uF
VA
2M
GND
100uF
47uF
4u
7
4u
7
10uF
10
uF
10
uF
10uF
A2
A3
A1
FSA
C2
C3
C1
FSC
1B-1
D.SW
IN
EFFECT OUT
BUFFER OUT
2
3
1
IC1A
6
5
7
IC1B
8
4
2
3
1
IC2A
6
5
7
IC2B
8
4
IC3
1
2
3
4
5
6
7
8
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R1
5
R16
R1
7
R1
8
R19
R20
R21
R22
R23
R24
R25
R29
R3
0
C1
C3
C4
C5
C6
C7
C8
C9
C1
0
C11
C12
C13
C1
4
Z1
D1
D2
TO
NE
1
2
3
VO
LU
M
E
1
2
3
D3
D4
1
2
3
GAINA
GA
IN
B
1
2
3
R26
R27
R2
8
C16
2
3
1
SW1A
SW1B
5
6
4
SW1C
8
9
7
RP
D
C17
C18
C2
C1
5
C19
C2
0
C2
1
C22
GND
PCB IN
TO
FROM
BUFFER
OUT
FROM
EFFECT
OUT
INPUT
TO
JACK
OUTPUT
TO
JACK
TRUE BYPASS / BUFFER
SLIDE SWITCH
