When Pro Co brought out the first Rat pedal they sold it as a Fuzz.
There was no precedent for a dirt pedal designed in this way.
It was in fact the first true OD ever made. It was based on the now defunct LM308 Op-Amp.
S.U.F. have recreated it using NOS chips.
The pedal is all about aggression and attitude. This pedal has a lot!
I can not help but love the sound!