Dual Expression Pedal Interface for Kosmo Format Modular Synth

This is a panel for a dual expression pedal interface for an analog modular synth.

Note: the knob that I labeled as "bias" would be more accurately labeled as "range." You can decorate your panel any way you like.

This panel is in the Kosmo format, popularized by Look Mum No Computer. This module allows you to use a foot operated expression pedal to modulate a DC control voltage to in-turn modulate any CV input on your synth. Alternately, you may plug in an external control voltage (such as an envelope or LFO), and the expression pedal will act as an attenuator for the incoming signal. Lastly, in the absence of an expression pedal, the "range" knob can be used to attenuate the incoming Control Voltage, or (if no control voltage input is present), provide a variable DC output for driving other inputs high in your modular synth. This is an extremely useful module, developed in the Look Mum No Computer forums. Here is the thread:

https://lookmumnocomputer.discourse.group/t/proto