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