Plane of core memory

[Brent Hilpert]

On 2019-Apr-18, at 9:30 AM, Chuck Guzis via cctalk wrote:
> 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-arduino/)
>> 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?


- The Manchester Baby replica recreated Williams tube memory (aka Williams-Kilburn tube memory).
Williams tube memory uses conventional oscope CRTs, so it wasn't that difficult.
(i.e. it's Williams 'tube memory', rather than 'Williams tube' memory.)

Holding-beam CRT memory ala Whirlwind would be another matter as the tubes were highly specialised.


- The EDSAC replica is using a new-production magnetostrictive delay-line memory to substitute for the mercury tanks.
From what I've seen of it (utube), it's a standard MR looped-wire design using modern components and production techniques.