PDP-8/L restoration

Hi All, Got the PDP-8/L memory working today! 4 bad diodes and a bad power resistor. I made a test board that plugs in place of the front panel that has a RasPI and 5 MCP23017s on it to test memory. https://www.outerworldapps.com/pdp8l-with-pipanel.jpg Anyway next will be getting the TTY port working so I can connect it to the RasPI and have it download and run diagnostics. Mike