"New" PDP-8

From: Heinz Wolter <h.wolter_at_sympatico.ca>
Date: Sat Mar 30 10:49:34 2002

Being a hardware guy - I want to know - did you (or Mr. A)
fully emulate a DEC drive (RK05??) or other drive
with a microcontroller ? or did you write a device
driver to support the IDE drive under OS8? Either trick would
be very slick indeed ;)

Regards and congratulations on getting your baby running.
Once and a while you see these Intersil 61xx chips appear
on ebay.. maybe others could duplicate your efforts..

Cheers, Heinz

Re:
From: "Loboyko Steve" <sloboyko_at_yahoo.com>
Subject: "New" PDP-8


> I just completed the very nasty job of downloading the
> operating system and a few BASIC programs to my "new"
> PDP8, which is built from Robert Armstrong's design.
> It only draws about 5 watts, so it isn't a problem to
> keep on all the time, unlike others that people on
> this list might own!
>
> I made a comment to Mr.Armstrong that I removed the
> IBM logo from the drive because I didn't think it
> would work correctly with a DEC design. Strangely,
> this actually came true to a degree; I had a slow PPI
> chip that didn't get data from the drive quickly
> enough. I tried to save a dollar buying an 82C55
> instead of an 82C55-5.
Received on Sat Mar 30 2002 - 10:49:34 GMT