Aion Fx take on a pretty rare, forgotten and old fuzz box by Roland. Some useful addons is made. A gain control is added and a series resistor before the volume control is removed for more overall output.
I added a tone selector switch for the tone control since the factory schematic and Aion's schematic differs in that spot; the low pass filter cap in the big muff style tonestack toggles between 1nF(Aion mode) and 10nF(stock mode). The switch acts a Mid/SCoop switch.
'Schematic is avaiable HERE.