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

Modules for DIY in Eurorack use 3.5mm mono jacks that come in three basic types, each with a different PCB footprint. The part numbers for each of these is different … Read More

Signal attenuation was a function missing from my collection of DIY things based on designs by Peter Blasser. All of these devices use a single +9 volt supply (Peter wanted … Read More

Josh Rodriquez again gifted me two PC boards! This time they are replicas of the delay lines in the Cocoquants v1. One of the boards was partially assembled and Josh … Read More

Rubin Sponar, the module designer, posted the following mods. R2, R3: change from 100k to 110k for offset of Triangle output, also improves sine roundness.R85, R92: change from 100k to … Read More