The Amplitude and Tone controller is a totally discrete VCA with simultaneous exponential and linear CV input. It also contains an all discrete, Vactrol based VCF with diode limited resonance. It also has a discrete input gain stage. Careful balancing of the input gain and resonance control sets the mix of self oscillation and input signal, distorted on the VCA input if desired.
Strøm: 30mA @ +12V
20mA @ -12V