This is my prototype of Bipolar CV Mixer. Nothing really special here but very practical module in modular setup. Four in… | Mixer, Dc circuit, Electronics projects
Ken Stone's Modular Synthesizer
Yamaha MG12X CV 12-Input Mixer with Built-In FX MG12X CV B&H
AI002 Audio and CV Mixer – Full DIY Kit – Thonk – DIY Synthesizer Kits & Components