16 Bit Relay-based 2:1 Mux + Not Unit. Used to implement the Zero and Not functions of the Relay2Tetris ALU
Use PCB-GP for production. It has teardrops and ground-plane.
Relay2Tetris project details here: https://github.com/RJWoodhead/Relay2Tetris
NOTE: This board is being revised; see project notes for more details.