Then there’s the “phono” plug and jack — which I’ve always called RCA connectors. Just remember the next time you plug in those high-end headphones, the plug in your hand has way over a ...

An RCA connector is also known as a "phono connector," because in the 1940s, Radio Corporation of America (RCA) designed it to wire an RCA Victor "phonograph" turntable to the radio to amplify the ...