The CGS733 is a four input, multiple output bipolar or unipolar DC coupled mixer, for mixing control voltages. In cases where you require several different mixes from a common set of signals, this module is ideal.
Each output can be independently switched to operate in unipolar or bipolar mode.
When in unipolar mode, all pots feeding that output behave in regular fashion, that is when the knob is fully counter-clockwise, no signal from the associated input passes into the mix. As the knob is advanced clockwise, a greater portion of the signal passes into the mix.
In bipolar mode, each knob has a zero position mid-way through it's travel. Turning the knob anti-clockwise will add an increasing portion of a negative (inverted) version of the signal at the corresponding input, while turning the knob clockwise will add an increasing portion of the original signal to the mix.
The CGS733 can be used as an Audio Mixer although any DC offset in the IN signals will be present on the outputs .
Older panel design build available here