This module is a 4 channel saw wave divider/resonator/harmonizer. It features a "Tightness" control which forces the harmonziers to follow the input signal more closely, this control can be modified with CV.
This PCB requires some offboard Pot wiring, but no callibration. The documentation has instructions for using it with 15V systems.
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.