We hook up two Soviet era ferrite core memory planes obtained on eBay. And they still work!
The 4k core plane is likely from a Saratov-2 core stack:
https://rusue.com/cemetery-of-soviet-computers/
The 1k plane is likely from an M-4 memory stack, see:
http://www.mirebs.com/fozu/ru/_mod_ru.html
This would have been used in several military computers says Ralph Mirebs, the author of the web site.
Full schematic of the setup I use in this video:
https://www.curiousmarc.com/computing/core-memory
Previous video explaining core memory:
https://youtu.be/AwsInQLmjXc
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