This project has two goals.  1) The ability to take some modules on the road, 2) More expansion space for the modular studio.  The cabinets are EWI Tourcase Model R10UE-10 … Read More

The MOTM-480 CS-80 Resonant Filter consists of two identical state-variable Voltage Controlled Filters. Each filter circuit features: 1V/Octave frequency control input FM input with reversible attenuator VC resonance input High … Read More

I decided to build a VCO using Ken Stone’s CGS 48 PC board. My version is minimal; it omits the additional waveshapers that are on the board. I was interested … Read More

UPDATED FOR 2006 This 1U-wide MOTM-format utility module combines a two-input mixer with an inverter and a comparator to create a versatile signal processor. I’ll describe the circuits first, and … Read More

This DIY random voltage generator is based on the #3 Standard WoggleBug Circuit schematics given by Grant Richter on his website, together with the block diagrams of the Wogglebug on … Read More

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