40k Ferrite Memory Core

I received this request for information on a core memory stack - does anyone recognize it? I passed on some general info to him about core memory and how they work. Mike Loewen mloewen at cpumagic.scol.pa.us Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/ ---------- Forwarded message ---------- Date: Tue, 28 Oct 2008 20:36:53 EDT From: BALLSHOP at aol.com To: mloewen at cpumagic.scol.pa.us Subject: 40k Ferrite Memory Core Hello, I was hoping you could help me figure out what I have here. I bought it an estate and it had a note attached that said "40k Ferrite Memory Core". It's pretty amazing to look at, there are thousands of tiny wires and it has little black "doughnuts" at the intersection of each wire. Any help in identifying this would be greatly appreciated. Thank You, Scott http://www.thegolfballshop.com/oct28/1.jpg http://www.thegolfballshop.com/oct28/2.jpg http://www.thegolfballshop.com/oct28/3.jpg http://www.thegolfballshop.com/oct28/4.jpg http://www.thegolfballshop.com/oct28/5.jpg