Jul 17
Electronics Archaeology: Building a Relay-Logic Line Cord Tester in 1978
By Cliff Potts, CSO, and Editor-in-Chief of WPS News Baybay City, Leyte, Philippines — July 17, 2026 A few years ago, I realized that I never really finished my electronics education. I attended Prosser Vocational High School in Chicago and studied electronics, but life took me in other directions. That realization is one of the reasons I started the Electronics Archaeology series. It gives me…