Schematic
RUBY
R1
1M5
R2
3K9
R4
10R
C1
47n
C2
100n
C3
Empty
C4
47n
C5
Empty
C6
100n
C7
100u elec
C8
220u elec**
Q1
2N5457*
IC1
LM386-N1
VOL
10KB
GAIN
1KB
*Other FETs will work, such
as J201. This section is
working as a buffer and will
have little bearing on the
tone. Pads are provided for
through-hole or SMT FETs.
**We’ve been building these
for years will 100u at the
output. It’s plenty bassy.
