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

This post will cover the DIY build from a factory kit of the Beast-Tek Double Dragon Dual LFO. I bought the full kit from synthCube. Double Dragon is a digital … Read More

I got used to having lots of sample & holds in my Eurorack. Whenever I would patch the 5U MOTM, I’d lament having only four sample & holds. It suddenly … Read More

My Encore Frequency Shifter had been troublesome for years now. Sometimes it would come up with all lights bright and not working. It started doing this all the time, so … Read More

I have a CGS-83 Dual Positive Slew, version 1.0, built into my Serge/Bugbrand blue panel rack. I was looking at Prism Circuits and discovered that several versions of the dual … Read More

This post covers New Systems Instruments Inertia in High range, i.e. for use as an oscillator or filter. For audio oscillation, mode is usually set to Skew, which allows frequency … Read More

This post discusses scope trace pics of New Systems Instruments Inertia, in the Low rate mode. The Low rate mode is useful for envelopes, LFO, and slew limiting. Attack-Decay Envelope … Read More