Sunday, October 08, 2023

BMC105 JFET Phaser

Demonstration video upload by boogdish

BMC105 schematic walkthrough

via Barton Musical Circuits

"This module is a 12-stage phaser or all-pass filter with resonance control. When the filter̢۪s output is mixed with the input, this creates notches in the frequency response. Classic phasing sounds are achieved by modulating the frequency control with an LFO. It can also be used as a 4-stage filter by removing the top PCB and jumpering pins 1 and 2 of the pin connectors together.

This module uses two circuit boards sandwhiched together. It's designed for 12V systems and can be easily modified for use with 15V systems."

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