18 Apr
2019
18 Apr
'19
3:07 p.m.
-----Original Message-----
From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Chuck Guzis via
cctalk
Sent: 18 April 2019 17:30
To: Jim Manley via cctalk <cctalk at classiccmp.org>
Subject: Re: Plane of core memory
On 4/18/19 9:02 AM, Jim Manley via cctalk wrote:
Whilst MSI Manchester run the Manchester Baby replica several days a week, and it does
have (mostly) working Williams tubes, its often operated on semi-conductor memory as that
allows us to talk to visitors, and not have to keep tweaking the store.
The EDSAC replica at TNMOC uses delay lines as a ton of Mercury was too expensive and had
health and safety implications.
Jussi Kilpelainen's page cited above (
https://www.tindie.com/products/kilpelaj/core-memory-shield-for-arduin
o/) refers to the work of Ben North and Oliver Nash to create another
core memory shield for Arduino Unos. Their site inspired Jussi to
create his shield kit, which can be viewed at:
http://www.corememoryshield.com
<http://www.corememoryshield.com/report.html>
I remember seeing that one some time ago.
Anyone with a Williams tube project? Mercury delay lines? Magnetostrictive delay memory?
--Chuck
Dave
Dave