This module provides three logic gates that share a single input. By swapping CMOS logic chips the gates can be set up as AND, OR, XOR, NAND, NOR or XNOR. It outputs +5V gates and accepts any signal as an input. I've found it most useful when used as an AND gate, applying a clock to the common input to synchronize timing signals.
The PCB is layed out for Eurorack style systems only with PCB mounted jacks.
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 4HP and cost $7 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.