[PDP8-Lovers] how to clean a PDP8/A, dishwasher?

From: Loboyko Steve <sloboyko_at_yahoo.com>
Date: Sat Dec 15 22:10:44 2001

I've looked into this too. Problems are many. It's
definitely not a trivial project, lots of analog and
electromagnetic voodoo, and the chips that made it
easier are very hard to find. I've got a small
capacity large doughnut ca. 1960 core plane from an
IBM machine and a 4K by 16 plane from the 70's with
very tiny doughnuts, both unused, and I'd love to
demonstrate how it worked.

--- ajp166 <ajp166_at_bellatlantic.net> wrote:
> From: John Allain <allain_at_panix.com>
> >I have a Question for the other core users out
> there:
> >How would I test-signal a board, for demos, that is
> >just a core frame, IE one sacrificed from its stack
> >and sold at the e- flea market?
> It's a non trivial thing to do. Core by definition
> is destructive
> read out memory. So to demo a core you need to
> provide
> the coincident current (x,y) and the
> inhibit/write/read signals
> with the associated timing. Both the currents and
> the
> timing are critical. takes a lot of stuff to do
> that.
> Allison

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Received on Sat Dec 15 2001 - 22:10:44 GMT

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