Eurorack 3U

The AI106 West Coast Eurorack Mixer is a fully discrete mixer design that updates vintage West Coast synthesizer mixer designs into a modern form. The AI106 West Coast Eurorack Mixer takes inspiration from vintage mixer circuits from 60s and 70s West...

The AI017 Low Pass Gate Eurorack Module can be used as a Voltage Controlled Filter, Voltage controlled Amplifier, or both. The AI017 is an updated variation of the classic Buchla 200 Series Low Pass Gate, updated with a tunable resonance circuit, and a...

  Befaco Pony VCF Space-conscious lowpass filter and volume processor. A combination of VCF + VCA + Mixer that lets you mix three different sound sources, and shape their tone, and levels in a breeze. The Pony Filter is built around...

Befaco Pony VCO Analog Thru-Zero Wavefolding VCO/LFO Pony VCO is a fully analog Thru-Zero oscillator with wavefolder and dedicated VCA in only 4HP. The module offers great stability and tuning capabilities thanks to its powerful core, based on Sound...

AI Synthesis AI012 Eurorack Wave Animator The AI012 Eurorack Wave Animator produces two pulses per input wave cycle with voltage controlled pulse width, distance, and amplitude of the second pulse. This design was adapted (with permission and a few...

This module is a 24 stage phase shifter using LDRs in a black box. It is a little more complex to build than usual but most of the build is repetitious and not so difficult. I have added plenty of pics in this guide to help with the build. Probably the...