Remember the late sixties? Jimi turning everyone on to wild fuzz stuff? Maybe not. But you don't have to be old enough to be a hippie to get off on this wild pedal. The circuit uses a combination of germanium diode and transistor fuzz generation and a ring modulator to turn simple chords into nutso note combinations and complex chords into incredible noise...and makes solos soar impossibly high.Controls IN:_Far right knob controls input (drive) level. Use just enough for fun but not too much if you need less noise during quiet spots. OUT:_Output level is on the left Watch out when you turn it up TONE:Turn to right for mid scoop tone ( mellow)...to left for more mids (aggressive).