Schematic
+ BOM
R1
1M
R2
10K
R3
1M
(22K)
R4
1M
(22K)
R5
1M
(470K)
R6
1M
R7
4K7
R8
10K
C1
10p*
(empty)
C2
10n
C3
47n
C4
10p
(22p)
C5
1n
C6
10u elec
C7
1u elec
(4u7)
D1
Jumper**
D2
1N4148
D4
1N4148
D5-6
3MM LED***
IC1
LM741
GAIN
500KC
‡
VOL
50KA
(100KA)
BOM shows Dis. Values in blue should be substituted for OD250.
*Lots of conflicting info on schematics out there for this value. A lot of them show 1n, but that’ll
suck a lot of top end. By all means do that, but we prefer to keep it small and retain the top.
We’ll supply 10p, 220p and 1n.
**You can add another 1N4148 in D1 if you want to see how the circuit sounds with asymetrical
clipping.
***Extra pads are provided for a second clipping option. See overleaf.
‡
Originally 1MB, but the sweep is terrible. 500KC is much more useable.
