Projects

Zlob Dual VCA

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

Cell 90 Case with Zeus Power

I bought a pair of used Cell 90 cases by Pittsburgh Modular.  The power supply that came with each of these was a simple analog supply with a 12 volt … Read More

Making Patch Cables

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

Eurorack Controller

A controller for use mostly by hands, but also with brain waves. I don’t use piano-like keyboards, but I wanted to have more ways to interact in real time to … Read More

Biometric Synthesizer

Here’s a miniature synthesizer, purpose built to work with my biometric modules.  In addition to the brainwave and muscle sensing control modules, it has two VCOs, two VCA/ring modulators, and … Read More

Pittsburgh Modular Cell 48 Case

I decided to aggregate my two biometric modules — the SoundMachines Brain Wave interface and the ADDAC Systems Muscle Sensing — into a small Eurorack case that would also hold … Read More

Rollz-5 Modification – Added 3-Rolls

When I built the Meng Qi Rollz-5 PC board, among the many modifications I made was to simplify the rolls oscillators by making them all just two-transistor circuits, i.e. ‘2-rolls’.  … Read More

Large CGS Serge Project

I am finally getting around to the assembly phase of this project, which I began to design almost a year ago.  Ken Stone has been producing PC boards by agreement … Read More

Rollz 5 patched running

Rollz-5 Completed

Here’s the assembled Rollz-5 project! The whole assembly can operate outside of its box.  Here it is being tested.  To the right you can see the power inlet, ground jack, … Read More

Rollz-5 Assembly Progress

The Meng Qi Rollz-5 PC board project in mid-assembly stage. The image above shows the PC board mounted behind a clear plexiglass panel that holds pots, jacks, switches, etc., sitting … Read More