This panel is one of five that comprise a set of modules from CGS.  It contains three different functions: A group of four passive attenuator pots Two CGS 64 VCA … Read More

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

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

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

When patching to CV inputs on Ciat-Lonbarde instruments (Cocoquantus, Plumbutter, Sidrax) it can be useful to add some attenuating ability.  For example, if I want to control the frequency of … Read More

Sometimes you cannot find a PC board with just the right circuit.  This was one of those times.  I work with a lot of stereo sources, such as the Ciat-Lonbarde … Read More

Quantity 1 From Control: The e560 is a triple-mode effects module: thru-zero frequency shifter, phaser and ring mod. What sets the e560 apart from other DSP effect modules is the … Read More

Quantity: 1 The Synthesis Technology e580 resampling mini-delay emulates the classic sounds of digital, bbd and tape-based delays with four parameters under voltage control. The E580 recreates the pitch-shift modulating … Read More

I was late to make DIY builds of the Synthesis Technology e560 and e580 modules.  A post on the Synthtech email list alerted me to Dave Brown’s builds. E560 Deflector … Read More

This is the Rollz-5+ PC Board by Meng Qi.  The circuits follow fairly closely the original paper circuits, designed by Peter Blasser.  I am building it with modifications of my … Read More