I thought I had this vintage octave circuit solved after swapping the 2N3906, only for the effect to flicker in and out again with the lightest board pressure. Turned out there was a hairline fracture wrapped right around the pin socket, hiding in plain sight and only showing itself once the transistor fault was cleared. These tiny battles are what make vintage repairs so addictive and so satisfying when you finally crack them. #GuitarMods #VintageVibes #ToneCrafter #GuitarCommunity #PedalRepair