One Last Bug Solved

A project log for Magnetic Core Memory The Dr Cockroach Way

My not so fancy example of Magnetic Core Memory using fairly cheap cores and free parts from my junk box.

dr-cockroachDr. Cockroach 05/29/2023 at 22:320 Comments

May 29, 2023 - While working with this circuit I noticed that there were times that reading back a bit would be incorrect. It comes down to if I have all the power leads connected and the the power supply to the cores is turned on, then a current spike seems to get into the X and Y wires even if I have not pressed the pulse button. If I first turn on the power supply then connect the power leads, the cores read back their state correctly. I need to remember this for future builds.