Quantity: 2 Description:  Mattson Mini-Modular Voltage Controlled Mixer Here is a MOTM-ized Mattson VC Mixer!  From the Mattson website: The VC Mixer consists of 4 channels. Each channel has an … Read More

Quantity: 1 Description: Mattson Mini-Modular Quad Buffer I took Mattson’s DIY Quad Buffer board and added four attenuator pots to turn it into a quad buffered attenuator.  I call it … Read More

Quantity: 1 in a 1U-wide panel Ken Stone’s CGS 21 PC Board: This module is a much expanded version of the Psycho LFO, featuring six free-running oscillators, each variable between … Read More

Quantity: 2 in one 1U panel Ken Stone’s CGS 62 Slope Detector: The slope detector is an event-driven gate/trigger generating device. It monitors a control voltage, and responds according to … Read More

Quantity: 2 (of course) This module is derivative of the Buchla 292c Lopass Gate.  The PC board and assembly instructions were made by Thomas White, described on his site on … Read More

Ian Fritz, January 2009 This module is a sawtooth-based VCO capable of frequency modulation (FM) extending past zero frequency into the negative-frequency regime. Thru-zero FM provides a much wider and … Read More

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I designed this module mainly for the purpose of increasing the resonance of the Cynthia/Buchla Quad Low Pass Gates.  There are quite a few low pass gates circuits around the … Read More

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I added this board to my portable cabinet that contains a three-voltage power supply.   The CGS 63 Power Supply Delay: The Power Supply Delay is a support module of sorts. … Read More

Quantity: 0 From the Synthesis Technology website: The MOTM-730 is used to “divide down” an input signal (usually from a LFO or VCO) to produce multiple square wave outputs. Fixed … Read More

Quantity: 1 Description:  Magic Smoke “Mankato” Voltage Controlled Filter / Low Frequency Oscillator / Slew Limiter From the Magic Smoke website: Designed by well known synth DIY guru Thomas Henry, … Read More