Control Unit

I started building the control unit on perfboard but didn't get very far with the soldering before taking a break to do a different project. This (unrelated) project used professionally made PCBs and was so easy to build it made me stop and think about using PCBs for LEO-1. After having great success and ease of construction making the Register Unit and ALU on individual PCBs, I decided to start the Control Unit again and do it on a PCB as well. I'm currently writing a complete list and description of all the signals on this board and then I'll start designing the PCB.