The Dual Benjolin is finished, racked and patched. I rearranged the rack cases in my studio to accommodate the Benjolin, as well as to plan ahead for the upcoming 4U … Read More

Need to drive a bi-color LED in one of your DIY projects? I needed some of these for the added LEDs in my Dual Benjolin project. I had a circuit … Read More

Made a lot of progress since the first post about the Dual Benjolin project. At that point I had one assembled and tested board. Since then I’ve built the second … Read More

Another easy to build Eurorack module from ST Modular, purchased from Calsynth. CV SCAN is a bi-directional 4-way switch that operates manually or by control voltage. Though mainly intended for … Read More

I was gifted the above PC board, which is a Fyrall by Ciat-Lonbarde (Peter Blasser). While awaiting the panel for my Dual Benjolin project (previous post), I dug into the … Read More

I was gifted a pair of Benjolin PC boards by Alan Rosetti. The Benjolin was originally designed by the late Rob Hordijk. There’s a good article about it on Perfect … Read More

It’s not too difficult to test the voltage outputs from a Eurorack power supply, but it isn’t as easy to test current, because you have to put the meter in … Read More

Another 4hp digital LFO kit for Eurorack, the CCTV Coven LFO is an addition to my Noise Rack. Coven LFO is a 4 HP modulation source in an easy-to-build DIY … Read More

One of the simplest DIY builds, the AI Synthesis AI010 Switching Attenuator was also a test to see if I could find a better quality “tall trimmer” potentiometer. But first, … Read More

I built this neat little LFO from Frequency Central. I had a need for some smaller LFOs to use in racks built for improvisation, so I got two kits for … Read More