Here is the schematic to my new Behringer UM300 guitar distortion pedal. Most of the circuitry is pretty straightforward (a lot for the $22 I paid!) but can someone explain what the emitter follower circuits are doing in the feedback paths of op amps IC2A and IC2C? I'm guessing it's some kind of frequency response modification, but?
Also I'm thinking of copying the BOSS SD-1 pedal's "asymmetric clipping" by adding a second diode in one of the clipper legs. Anyone tried this?
Edit: @G36 just answered my question but I'm including the following for completeness…
I'm asking what transistor T2 and the associated components are doing in op amp IC2A's feedback path. The situation with IC2C is similar but there are two of these emitter followers in the feedback path.