Intel MCS-85 Restoration

4/17/2021

Reseated all of the chips because the MCS-85 would not reliably run.

Made a cable to connect an ASR-33 Teletype to the MCS-85, and replaced the jumper that determines if the keypad or the Teletype is used as the console. Now we can save and load programs to/from paper tape. To use the Teletype, the board must be reset while the terminal is already connected and the switch has been set to TTY (up, on this particular example).

The Molex connector and pinout matches a DEC VT-220 terminal, and all of the Teletypes at the RICM.
The pinout for the Terminal/TTY cable: