Rare "Tone knob" version of the Jumbo circuit in a thin box. Linear tone, logarithmic taper volume & fuzz pots. Super fuzzy & dynamic with massive bottom end, it does thick and thin...and sounds good doing it. Loaded with tropical fish caps; this lean, mean (partially green) doom machine is ready to melt faces.All original down to the oversized Arrow footswitch, its wear is cosmetic. The foam battery pad has seen better days, no other issues to speak of. I'm the second owner and it's been cared for throughout its life, since its 1970s childhood. Give'r a good home and get heavy.Ships worldwide via GSP