PDP-11/05 restoration project - anyone has a M7810 or M781?

Mattis Lind mattislind at gmail.com
Sun Sep 27 15:25:29 CDT 2015

söndag 27 september 2015 skrev tony duell <ard at p850ug1.demon.co.uk>:

> >
> > 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

You're right of course.  Unlike the others I've worked with (11/04, 11/34,
11/03 and 11/23) this one  include a serial port. Hasn't worked with CPU
boards yet so I forgot the built-in serial port.

BTW. I do have omnibus, unibus and qbus stuff to trade with if there is


> -tony

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