Well, this is not new as there have been so many FF projects lying around the net. And I just decided to do a layout since it's so very easy. Pots are mounted directly to the PCB and should be placed vertically like those in original zvex's. I used 125B type box with no problems. Please note that transistor values are my own choices. Components below the "STAB" pot(ie 4.7K, 390 ohms, and 22uF cap) is an LED anti-pop circuit.
Layout Download