What was the recommended inspiration for Harold P. Kopp's Zap Trap, according to his high school classmate David Quagliana?

Answer

A suggestion from a store clerk in Buffalo

The conceptual spark for Harold P. Kopp’s Zap Trap in 1941 reportedly came from an interaction during a visit to an electronics store in Buffalo. According to his contemporary, David Quagliana, the store clerk suggested a rudimentary method of protection involving soldering Metal Oxide Varistors (MOVs)—though Kopp’s device likely used different technology—onto the power wire and grounding the other side to absorb electrical shocks. This real-world suggestion, intended for basic protection, prompted Kopp to engineer the Zap Trap as a small, self-contained box designed to absorb these electrical shocks before they reached sensitive electronics like a television, establishing the foundational concept of electronic surge suppression for consumers.

What was the recommended inspiration for Harold P. Kopp's Zap Trap, according to his high school classmate David Quagliana?
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