DIY

Experimental VCA for Ciat-Lonbarde

I’ve built a Tetrazzi quad oscillator, a Quantussy quintuple modulator, a Roolz 5-6 dual LFO, and am about to built a Dubernator dual VCF. All of these from PC boards … Read More

SSSR Labs SM630 AWS Kit

SSSR Labs SM630 AWS (Alisa Wave Shaper) SSSR Labs AWS is the first collaborative design by Dmitry Shtatnov and Vyacheslav Grigoriev. The module is inspired by the «Harmonics» waveshaper section … Read More

Transient Modules 2M Kit

Looking for a small dual audio mixer, I found this kit from Transient Modules. The 2M is two unity gain mixers in parallel. Each mixer has level controls for the … Read More

Synthrotek M/DIV

M/DIV is a 4hp CV-controlled dual clock multiplier/divider with tap tempo. The M/DIV has three clock outputs: a master clock and two multiplied or divided clocks. Each channel can do … Read More

Yet Another Eurorack Case

I had not planned another case so soon, but I had bought a 4ms Row Power 35 supply, thinking that my Row Power 30 was broken. Not broken, just the … Read More

Large Patchable Tetrazzi

Features Four oscillators with independent controls and outputs Saw, Triangle, Ramp variable shape output Pulse output with variable width Rise rate pot and CV input Fall rate pot and CV … Read More

Tetrazzi Large PCB Test

I built up a part of the Tetrazzi circuit for test purposes. Only the core VCO part were installed, around the 4051 switch and the TL082 op amp, plus the … Read More

DIY Eurorack Case

It can be hard to find just the right Eurorack modular case. I’m picky about the power supply and distribution. Most small, powered cases don’t have the kind of power … Read More

Tetrazzi Large PCB

This PC board appeared in my mailbox, a gift from Josh Rodriquez. It’s hard to believe that it has been nine years since my Modular Tetrazzi project to put Peter … Read More