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

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

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

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

Quantity: 1 Description: Ian Fritz’s circuit produces chaotic oscillations according to a third-order differential, or ‘jerk’, equation.  The panel, bracket, and PCB are available from Bridechamber: Fritz Jerkster Panel Three … Read More

Quantity: 0 Description:  Blacet Research Model DF2420 manually controlled state variable filters.  Two filters in a single 1U panel. From the Blacet website: Two high quality state variable filters in … Read More

Quantity: 1 Description: Dual Tellun Lag Processor in a Bridechamber panel. Tellun Project Page Bridechamber Panel Page The project is built on two MUUB-4 prototyping boards, stacked on top of … Read More

This is a panel of 32 jacks divided into two sets of 4 cascaded multiple.  

Quantity: 2 From Tellun Corporation. Modifications: I chose the bright LEDs. See the chart below for details. The pattern is a reverse-S shape of my own design. I use green … Read More

Quantity: 1 A stereo output mixer of my own design Front-Panel-Express MOTM style panel A simple 4-IN, 2-OUT matrix mixer. Inside are two identical 4-input mixers. Each input is sent … Read More