Stereo Rca
An In-depth Knowledge About RCA Cable
RCA cables, or connectors, are a kind of an electrical medium used for carrying video and audio signals. Also renowned as the phono or cinch connector, its name is the abbreviation of the Radio Corporation of America, who was responsible for introducing the design, during the early years of 1940, so as to facilitate connection between phonograph players and amplifiers. In fact, RCA cables replaced the old fashioned TRS connectors, which were more prevalent those during those days. By 1950, these cables completely eradicated the use of TRS cables from the market. Nowadays, these cables find application in most modern consumer level audio-visual devices, like home theaters, DVD and VCD players, TVs.
RCA cable comes as a trio of plugs, each with a unique and distinguishable color. The color code has a certain meaning. The yellow colored plug stands for composite video, and delivers the video signal from the device to the monitor. The other two sockets, red and white in colored, deal with the right and left channels of the stereo audio. In fact, by utilizing these two sockets, analog audio signals get converted into stereo. Recent RCA cables have been using a black socket instead of the white, but the function remains the same.
Most modern video and audio equipment possess RCA sockets, where the RCA plugs fit into. Since the plugs are color coded, the same rule applies for the jacks or sockets as well. Only the same color combination between the plug and the socket would establish a successful connection, else the signals won’t be transmitted. Modern day televisions, camcorders, and video players have at least one set of these sockets present. It is via these sockets that these devices can be connected. Quality is also one of the determining factors, which affects signal transmission and reception. Varying nature of cable quality, poor quality of shielding and impedance mismatch can result in unsuccessful transmission of digital audio and component video signals.
Although RCA cables have transformed connectivity, and took it to an entirely new level, one problem persists with these cables. The internal signal connection is made before the screening connection is achieved. This can be harmful to the device, as it can often time produces a buzz. If the device is not switched off, potential damage cannot be averted. Also, each signal transmitted through these cables requires its own plug. Although attempts have been made to combine the audio/video connectors, for combined transmission of direct signal, it has not been implemented on a large scale, due to several issues in the analog realm.
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About the Author
1958 RCA Victor Hi-Fi Stereo Console with turntable
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