Search for: Your Source for DIY Pedal PCBs and NostalgiTone! › GuitarPCB Forum › Topic Tag: Boogie 57 Bias Viewing topic 1 (of 1 total) Topic Voices Posts Last Post Boogie 57 Biasing problem Started by: Colterml in: GuitarPCB Build Support 2 5 2 years, 8 months ago Barry Viewing topic 1 (of 1 total)