This module provides two separate two-input logic gates and a master logic gate output fed from the output of the other two gates. By swapping what chip in the CD4000 series you use, you can have gates for AND, OR, XOR, NAND, NOR and XNOR logic functions.
The PCB uses PC mounted jacks so there is no wiring when building for Eurorack. The PCB has mounting holes so offboard jacks can be used for building in other formats.
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.
