Ferrite core memory was the dominant computer memory technology from the 1950s to the late 1970s. Before we delve into the repair of our Apollo AGC core memory, I thought it would be good to explain how they work, as they are very different from modern semiconductor memory.

Check out our Russian core memory follow up video here:    • Playing with Soviet Era Ferrite Core Memor...  

Ken Shirriff has some of the best core memory write ups I know of, here:
www.righto.com/2015/08/examining-core-memory-modul…
This one details the AGC core memory:
www.righto.com/2019/01/inside-apollo-guidance-comp…
We also found this page from Brent Hilpert very helpful:
madrona.ca/e/coremem/index.html

Our sponsor for PCBs: www.pcbway.com/
Support the team on Patreon: www.patreon.com/curiousmarc
Merch on Teespring: teespring.com/stores/curiousmarcs-store
Learn more on companion site: www.curiousmarc.com/
Contact info: youtube.com/curiousmarc/about

Music Credits: Crinoline Dreams Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
creativecommons.org/licenses/by/3.0/