SetonixSynth Tidbit Audio Solar Gravity Vactrol VCA - Analog Eurorack Modular DIY Kit 4hp control voltage with one input and two

with one input and two possible outputs

one using positive voltage and the other using negative voltage

Developed by Robots Are Red & Tidbit Audio ©2026

LFOs and other “smooth” voltages

the more light

SetonixSynth Tidbit Audio Solar Gravity Vactrol VCA - Analog Eurorack Modular DIY Kit 4hp control voltage with one input and twoThe Solar Gravity is an analog vactrol based VCA designed to bring the lovely response of optocouplers into the realm of clean, performance based Eurorack VCAs. Starting with this simple concept, the Solar Gravity utilizes some neat active circuitry to significantly reduce the bleed inherent in vactrol based VCAs and to provide the user with lots of control over the level, direction, and response of incoming control voltage. Though its primarily