RCA connector
A plug and socket for a coaxial cable that is widely used to connect audio and video components. They are found on every TV, DVD player, stereo amplifier, set-top box and countless other devices. Comprising two wires; an inner signal and an outer ground, RCA connectors are also known as "phono connectors." In the 1940s, RCA (Radio Corporation of America) designed them to cable a "phonograph" turntable to an amplifier (mono, not stereo).
Typically used for analog signals, RCA and mini-phone are the most widely used connector types on consumer equipment (see mini-phone connector). See coaxial cable and A/V ports.
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| RCA (Phono) Connector |
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| Although these cables are used for analog signals, RCA connectors may also be used for digital (see S/PDIF). The prong is 1/8" thick by 5/16" long. |
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| Ubiquitous Sockets |
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| Almost every kind of consumer audio and video equipment has RCA sockets. This is the back of an A/V receiver. |