Ongoing excavations - PDP-8/e

From: Ethan Dicks <ethan_dicks_at_yahoo.com>
Date: Wed Oct 27 15:37:03 1999

--- Tony Duell <ard_at_p850ug1.demon.co.uk> wrote:
> Well done!. The 8/e is a machine that I like -- it's pretty easy to
> understand, and an elegant instruction set...

My first -8 was an -8/L. I still have it, but it currently needs more help
than the -8/e. It does not have correct behavior of the front panel switches
and I haven't had time to start module testing.

> > ...I currently have the chassis and PSU sitting side by side on the table
> > leaving me enough room for a hex-height 16K MOS card to hang over
> > the side of the OMNIBUS.
>
> ROFL! Sounds like the sort of thing that I do :-). 'What do you mean this
> configuration is not supported by Digital? It works, doesn't it' :-)

It seems to work just fine, and I made a point of mentioning it for Lawrence
LeMay who has an -8/e and an RL8A. The same arrangement should work for him
to get it all working together without having to aquire a hex-height expansion
box and OMNIBUS cables.

> If you need any help, I have an RX8e + RX01 on my PDP8/e. I also have the
> full prints for everything... So feel free to ask questions.

I have the bound -8/e maintenance doc set, so I think I'm OK there. For now,
just getting through either an OS boot or diagnostics will be the hurdle.

I still haven't heard anyone cough up any info on the PR/S01 tape reader.
Worst
case, I'll stick a scope on it and time the start/stop bits to guess the baud
rate. ISTR 2400, but I have never used this particular device.

Thanks again,

-ethan


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Received on Wed Oct 27 1999 - 15:37:03 BST

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