Search for: Your Source for DIY Pedal PCBs and NostalgiTone! › GuitarPCB Forum › Topic Tag: polarity klon mkc film electrolytic Viewing topic 1 (of 1 total) Topic Voices Posts Last Post 1uf electrolytic polarity if board outline is film box Started by: Anonymous in: GuitarPCB Build Support 3 6 3 years, 10 months ago Anonymous Viewing topic 1 (of 1 total)