FuzzDog JenFuzz, Instructions Manual

Page: 3 / 10

Sch BOM
R1 1M
R2 10K
R3 33K
R4 150K
R5 4K7
R6 22R
R7 1K
C1 10n
‡
C2 10n
‡
C3 Empty
C4 1n2
C5 22u elec
C6 15n
C7 100u elec
D1-2 BAT46*
D3 1N5817
Q1-3 Low gain NPN BJT**
BIAS 22K trimmer
FUzz 1KB
VOL 50KA***
*Original diodes are SA815. Try what you like here - they’ll make a big difference to
the feel of the fuzz.
**Aim for 200-250 for Q1, 300-350 for Q2-3. Originals used BC238B and BC239C.
We’ve designed the PCB to take both TO-18 and TO-92 packages. See page 6 for
orientation information.
**100KA works much better - honestly.
‡
If you want to beef up the sound, swap C1 and C2 for larger values, such as 47n.