The designer of this pedal goes to a great length to detail the many pedals that were designed by using the original and all that followed it. Including well known brands like Wampler, JHS and Fulltone. Even this pedal is not the makers first but more of a deluxe version. Like the original it is a OpAmp with clipping diodes pedal. As I have stressed in the past these can be more easily made cheaply where OD's using FET transistors that are more tube like can as a rule not be. Yes like all pedals there