The Pile O' RATs is GUP Tech's version of the classic Proco RAT distortion pedal.
This version comes with 3 clipping modes (the 8 toggle), the center position is LED clipping, left is the classic diodes, and right is the dual-diode level (more clipping).
A "Sweep" knob has been added (classic RAT mod) to shift the mid peak (leave it at 0 if you want the original RAT tone).
Comes stock with an OP07 but can come with an LM308 upon request!
Power consumption: 1 mA
Voltage: 9 Vdc Center Negative