Soldano Supercharger G.T.O. Second Hand – Fanatic Guitars
Sushibox FX Soldano Supercharger GTO : r/diypedals
Blues City Music - Pure tone. Soldano GTO pedal/last one in orange, original KLON Centaur Overdrive pedal, and all original 1973 Fender Silver Face Princeton. | Facebook
Soldano Supercharger GTO CLONE High Voltage Tube Pedal Driver High Gain 9V g.t.o | eBay