Schematics / CV Mega Mixer By Ken Stone
C.V. Mega Mixer by Ken Stone http://www.cgs.synth.net/modules/cgs23_cv_mega_mixer.html ,from the notes on the page : This module is an enhanced version of the D.C. mixer designed for both audio and CV mixing. It has both non-inverting (adding) and inverting (subtracting) inputs, as well as a master level control. It also features two inverting outputs, one (out2) that is offset by the master level control, and the other (out3) which has independent offset and center inputs.
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