I haven’t built a pedal with PNP transistors until this one, so I’m wondering about the power supply. I use the One Spot for my pedal board, but would I need to get a center positive adapter to run the Industrial Fuzz? And can I run it with other pedals on the board? The build docs show a 9V battery wired standard as well. I appreciate any light shed on this.
Guitar PCB’s “Industrial Fuzz” does NOT require any special power supply treatment. A positive center power supply is not needed. If you take note of the schematic in the circuit’s build document, you note that Q2 & Q3 are wired in reverse polarity as compared to Q1. Hope this helps.