Walco Fuzz Tone Generator

Couldn't find any demos for the original unit. This could indicate one of the two reasons. First, the circuit sounds so horrible that no one has wasted their time to record a demo, or second, the unit is rare and highly undervalued. Either way, designwise it does have distinct differences from other fuzzes of the era. Internet search shows that Mr. Albini has one at Electrical Audio studios, so i guess it can't be all wrong. I added polarity protection and pulldown resistor for this layout. I also tweaked couple of the values to match the ones you have (as there should be 500K resistors and 50n caps..). Same thing with the transistors. Original has 2SC828s in it, but you should be golden with 2N5088s or similar. If you are building this, consider swapping the 47p cap for something a bit higher. Like 10n.

Edit: According to FSB thread on the subject, the 47p cap on the schematic should be in fact 470p. Layout edited accordingly. Oh. This also makes this 1:1 with Kent EA-3 Fuzz Tone Bender.