I've built a Parentheses fuzz. None of the Distortion, Octave or Boost are working. I've started tracing the signal and it seems to stop at Q1. I've got my input signal at pin 3 and +9v at pin 1 but don't seem to be getting anything from pin 2 - should I be seeing an amplified version of the signal there? I sourced my PF5102 from a supposedly reputable seller on ebay but is it possible it's defective?