On 1/1/20 8:35 AM, Paul Koning wrote: > KO has an interesting history with ferrite devices. One of the things DEC built early on were core memory testers Ken and Stan Olsen, Harlan Anderson, Ben Gurley, etc. all worked at Lincoln Labs in the 50s The other interesting thing I found out was that the Whirlwind used magnetic logic for core decoding that Ken invented.