Another one of Tim
Escobedo's Circuit Snippets. The envelope control mod is way cool. Go listen
to it at Tim's web
site. Mine came out sounding exactly the same as his, except for the 'Freek
mod' that I did, that is.The Freek knob is a 50K pot
wired between the input and output. The Freek switch is a SPST that switches the
Freek pot in and out. Switching it in drops the volume a bit, but also gives a
big low frequency (bass) boost.
BTW
- this is an older version of the circuit (v.4) using
2n3904 transistors instead of the LM386 driver in the
newer version. Here's
my layout.





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