> > The plan is to get it to work with the 8kW core memory, M7800 connected to > a good old teletype and PC05 paper-tape reader / punch and then run paper > tape BASIC on it or other paper tape software.
> The problem is that I am lacking in the M7810 board. Since I do have a M105 > and M7821 a M781 could do as well. Why do you need a second serial port? The PDP11/05 CPU board set has a built-in UART set to the console port address. In general it was set to be 110 baud, and has a current loop interface, but that's just what you need for a teletype. -tony
