I built a rabbit hole that is an oscillator rather than a fuzz ,checked all the components ,wired it at first just off the main board and had fuzz and oscillator so then I wired it as from the pdf with the daughter board now only have oscillation, the runt worked the first time .only reading that is slightly out is Q3 C: 04.46v B: 0.64v
First I would controll are resistors from Basis of transistors to ground. Especially that Q3. And after that, capacitors from Collector to Basis of all transistors. And pcb tracks of course. Because of crackles or tin dirt between tracks.