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

I have been assembling a rack for noise improvisation, in the wood case that Kri Samadhi helped me build. Here’s the Modular Grid view. The blank panel on the right … Read More

Marsupial is a Dual AS3350 Voltage-Controlled Filter from SetonixSynth. I don’t use filters often in Eurorack, but I built this one for my Noise Rack (next post). I like the … Read More

EuroKastle is a Eurorack version of the Bastl Instruments Kastle or Drum Kastle Synth. This is the third PT Modular semi-kit I’ve purchased from Calsynth. It comes with a full … Read More

Another easy DIY module from Calsynth, the Stereo Total. It is a manual mono to stereo and stereo width controller. The first block A is a Stereo Simulator that creates … Read More

Ciat-Lonbarde instruments are getting older and sometimes need a replacement knob. I found a perfect match, Mouser part number 450-4660, also the same part number from Eagle Plastic Devices. It … Read More

I discovered that Calsynth offers populated PC boards for many ST Modular modules, which are all DIY. The cost for both populated PCBs plus the panel is only $59 plus … Read More

Toppobrillo’s TWF was designed in 2010 and is now discontinued. But you can still build one. SynthCube sells the PC board with several different panel options. I chose the black … Read More

Not long ago I built a DIY Cocoquantus Delay. I received a second PC board from Josh Rodriquez, and he reminded me to use it for tracing the delay circuit … Read More