BugBrand SYN2B and SYN2BX

The SYN2B is a Quadrature Sine VCO.  It sports a precision 10-turn frequency dial and two FM inputs, 1V/Octave, and an attenuated FM input that is switchable between Exponential and … Read More

Modular Tetrazzi

After I received my Ciat-Lonbarde Tetrazzi Organ, I spent a lot of time delving into its design.  I wanted to understand it as well as possible in order to be … Read More

Buchla Dual 281 FG

This is a DIY Buchla 281 Function Generator, built on the printed circuit board by Toppobrillo.  The discussion on Muff’s message board has the details.  It’s actually one half of … Read More

Ciat-Lonbarde Cocoquantus

The Cocoquantus from Ciat-Lonbarde is a most unusual instrument for electronic music.  Not many electronic instrument can claim, “materials include: Walnut, Sassafras, Juniper, Cherry, circuit board, transistors, capacitors, and resistors… … Read More

Mattson VCF

Quantity 1 Here is a DIY Mattson Mini Modular VCF in a MOTM panel.  George Mattson’s description: 4-Pole, 24dB/Octave State Variable Filter jointly designed by Synth DIY guru Jim Patchell … Read More