See this important circuit update for a fix to the noise floor. Befaco A*B+C is a dual four-quadrant multiplier with VC offset, a Eurorack utility module with a distinctive design. … Read More

L-1 Stereo VC Mixer replaces the Verbos Scan & Pan for my output mixer. Features 4 stereo channels with voltage controlled level and panning Voltage controlled sum out level Stereo … Read More

Peter Blasser’s paper circuits are made by printing out a graphic, such as the above, at the right scale to match up with the physical sizes of the actual components, … Read More

The world of Eurorack modular cases and power supplies is wild and woolly.  I put together a motley collection of six different cases, five of them small, and the larger … Read More

I upgraded a second Pittsburgh Modular Cell 90 skiff case to a better power supply.  See my previous post about upgrading the same type of case with Zeus Studio Bus … Read More

I had purchased an ADDAC Systems Muscle Sensing module to use in collaboration with a dancer.  But I needed more than one sensor, and so I also built my own, … Read More

I had 2 HP of space left in my Synthrotek portable Eurorack case, after shuffling some modules.   Looking around for 2 HP modules, I found this little gem, from Zlob … Read More

I bought a used Cell 90 case by Pittsburgh Modular.  The power supply that came with it was a simple analog supply with a 12 volt AC wall wart that … Read More

Mattson VC Mixer Taking stock of all my VCA modules, I realized that while I had at least two of each type, I had built only one of George Mattson’s … Read More

With more Eurorack modules added to the studio, I had a need for yet more adapter cables.  Previously, I had made cables for patching between banana systems and 5U quarter-inch … Read More