I’ll be playing at a local event, The Cesspool of Synths, on July 4th. The patch I’ll be using is pictured above, which uses my Ieaskul F. Mobenthey rack together … Read More

Peter Blasser put bounds modulation capability into many of his oscillators. But what is it? Consider an oscillator that bounces back and forth between an upper voltage and a lower … Read More

Left to right: Swoop Spokes, DIY Quantussy, Large Tetrazzi PCB, Roolz 5-6, Meng Qi Rollz-5. The Patch The five outputs of Swoop Spokes patch over to the five Quantussy petals … Read More

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

I noticed a discrepancy of resistor values on the Large Tetrazzi silkscreen and graphic at the spots where the Upton/Donton and Upmod/Dnmod controls attach. All of these come through a … Read More

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

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

What to do with the new 5-6-Roolz? (Insert scratchy head emoticon.) How about having it control Make Noise Mimeophon? Yeah, let’s make some noise! Patch is pictured above. The two … Read More

Most who are familiar with the circuit design work of Peter Blasser know about the Rollz. It first appeared as the ROLLZ-5 Drum Machine. The Rollz-5 PC board, designed by … Read More

I wanted to combine two of my recent modules, the Oakley Sound Discontinuity and the Erica Synths Black Stereo Delay. They are in there! The full patch audio starts out … Read More