On Nov 30, 2015 9:14 PM, "william degnan" <billdeg...@gmail.com> wrote: > > I have an 11/05 with ASR 33 for I/O. I am using the M9970 console card to make the connection. I have loaded papertape BASIC into core (16K) and it boots up from 000 000 to the TTY, I can type in programs, etc. > > Question - I'd like to switch over to a VT 50 in 20ma mode. Not sure if this is possible based on what I read here: > > http://www.retrocmp.com/how-tos/interfacing-to-a-pdp-1105/144-interfacing-with-a-pdp-1105-sorting-the-wires
To clarify, I meant I don't think you can interface with the vt50 with loop 20ma, so instead I wanted to split the IO between the TTY for program storage and vt50 using M7856 serial card. I am guessing this is the way to go, but I have never done this before. Good plan? Anyone have this kind of set up now? Bill
