This is a 10 band EQ module. Bands are spaced an octave apart ranging from 30hz to 16khz, each can cut or boost 12db. Zener diodes can be switched into the circuit to limit the output level and provide soft harmonic distortion.
This module is compatible with 12V and 15V systems without changing any values. All pots are PCB mounted, and only two jacks need to be wired.
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.
