What circuit is this?

[mikepurcell]

Anyone know what circuit this is? I got it on a haul of parts from a guy that was getting out of making pedals.

Transistors are:
2N2222
2N3904
2N5088
2x green LED's

2x spst
3x pots - haven't pulled them to check values yet.

Some kind of distortion or fuzz circuit, it sounds cool but it's got some problems. Plus I'd rather build my own.

[Kevin Mitchell]

Just throwing darts here, may be a NPN Tone Machine with whatever parts the dude had laying around.

Send a photo of the backside and we'll reverse engineer it.

[mikepurcell]

As requested.



Additional info:
B5k - voltage sag pot
B25k - I'm guessing fuzz/distortion
A100k - Output pot

Looks like the switches are on each diode to take them in/out of the circuit. Diode 1 is connected to base of Q2, Diode 2 to base of Q3. Numbering them top to bottom from the top photo.

[mikepurcell]

Figured it out, it's a Dwarfcraft Shiva.

[Fancy Lime]

"... getting out of making pedals"? What is that? Never heard of it. Sounds serious. Please don't tell me it's contagious!