This module takes two voltage inputs and performs either XOR, AND, Summing or Difference operations on the voltages to create an output voltage. This is useful for low frequency waveshaping or altering a sequencer's output temporarily without altering the actual sequence.
An expander is available which takes the 10 bits of the output voltage and gives each bit it's own output. This is useful for turning voltages into ryhtms.
The main PCB has PC mounted pots for convenience as well as mounting holes for flexibility. There are footprints for Eurorack and MOTM style power connecters. The Expander is Eurorack only, all components for the expander are directly soldered to the PCB, so there is no wiring.
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. A PCB/PIC set for the main board is $18.
The Expander PCB is for sale at $7
Unfinished eurorack
panels are available for this project, they are 10HP for the main board and 8hp for the expander, they 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 for the main board. For the expander, use this drill guide. Those images should be printed at 300dpi for proper
scaling.