This is an all analog synthesizer module used to create new timbres and waveforms with your existing VCOs. It uses a CD4046 phase locked loop chip in combination with a binary counter to multiply the frequency of the input signal. It then has 7 outputs divided down from that multiplied frequency which are mixed together. It's simple to use and has a distinct sound.
This module can be built for 12V or 15V systems and has no jacks attached to the PCB/
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 12HP 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.