Computeriter Emulator Hardware Design

As described here , the System Source Computer Museum asked me to build an electronic replacement for the non-repairable Soroban Computeriter used with the recently-acquired CDC 160A computer. One of my previous projects for the museum was board that plugged into the electronics of a Tempest -shielded Teletype Model 28. The Model 28 uses the 5-bit US-TTY character set, in our case at 75 bits per…