Plane of core memory
dkelvey at hotmail.com
Thu Apr 18 11:59:56 CDT 2019
My understanding was that the mercury delay lines needed periodic repairs ( not sure what the cause was but mercury does dissolve into many metals ). If I were going to make a delay line memory, I'd go with the magnetostrictive. These are practical to make. One just needs a little ingenuity and a spool of piano wire.
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Al Kossow via cctalk <cctalk at classiccmp.org>
Sent: Thursday, April 18, 2019 9:42 AM
To: cctalk at classiccmp.org
Subject: Re: Plane of core memory
On 4/18/19 9:30 AM, Chuck Guzis via cctalk wrote:
> Anyone with a Williams tube project?
The 1401 guys at CHM were working on one using a real 701 tube.
I don't think it was ever finished.
@tubetimeus built a small core array with Bulgarian cores
Discussion of the EDSAC rebuild
Haven't heard if anyone has tried to get one of the Russian MR
lines on eBay to do anything, or if anyone has a running Packard-Bell PB-250
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