I had only one stereo filter in Eurorack, the Vult Freak. Freak is a versatile digital filter, but I wanted to get an analog stereo filter. Some searching brought me … Read More

A friend asked me to build him a manual switch box for MIDI. I had built a similar box for him before, but that was a metal box. This time … Read More

I found Audrey II on Modular Grid, even though it is not a Eurorack module. That listing led me to Synthux Academy, where I found lots of information about the … Read More

I will soon be posting about Audrey II from Synthux Academy. The diagram above is a screenshot from a video explaining the design of Audrey II. It shows a feedback … Read More

Sometimes you need a small mixer for a specific purpose. I was updating my Mocante rack and had 4hp of space for a three or four input mono mixer. Searching … Read More

I remembered looking at the Rise and Fall gate outputs on After Later Audio Tilt and Joranalogue Contour 1 slewing modules and finding unexpected behaviors. Recently I remarked about this … Read More

I patch and play my customized Rollz-5, built on a PC board by Meng Qi with circuits designed by Peter Blasser of Ciat-Lonbarde. These circuits are early versions of what … Read More

Here is Doppio from ThreeTom Modular. Doppio is a compact stereo amplifier, drive, and soft limiter module, stereo in and out with manual controls. I built it from a Thonk … Read More

This patch came out of playing with ALM Busy Circuits Jumble Henge. Four little voices are mixed in Jumble Henge to various placements in the stereo field. Each voice is … Read More