> -----Original Message----- > From: cctalk <cctalk-boun...@classiccmp.org> On Behalf Of Chuck Guzis via > cctalk > Sent: 18 April 2019 17:30 > To: Jim Manley via cctalk <cctalk@classiccmp.org> > Subject: Re: Plane of core memory > > On 4/18/19 9:02 AM, Jim Manley via cctalk wrote: > > 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?
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. > Magnetostrictive delay memory? > > --Chuck Dave Dave
