This is an all analog filter module that employs resistors with analog switches to control frequency cutoff. The module has two filters built in which share a common frequency control, these can be used in series or to process stereo signals.
The board features PC mounted pots for less wiring, and mounting holes for flexibility in panel layout. There are Eurorack and MOTM power connecters. The PCB was updated in August 2022 to improve response when switching between internal and external oscillators.
For complete descriptions of the way the module is used, and how to build it, including schematics and parts list; download this PDF file.
Boards are available now. Price for 1 PCB is $8.
Unfinished eurorack
panels are available for this project, they are 10HP and cost $8 each.
There is
more information here about panels. If you're interested in drilling your own panel for
this project, feel free to use my
drill guide. That image should be printed at 300dpi for proper
scaling.
