In 1939, RCA introduced two radio-television floor consoles (TRK-9, TRK-12) which used the same internal connection concept but the audio output of the television chassis was connected to the radio/amplifier chassis via a male to male cable. Three lower-cost 1939 television models had an audio output connector on their rear panel instead of an integrated amplifier and speaker: RCA TT-5, Westinghouse WRT-700, GE HM-171. “An inexpensive RCA Victor record player will make a fine The rear panel of a 1939 RCA model 45EM vacuum tubeĭesktop AM radio with a female RCA jack. The amplifier chassis had female connectors which accepted male cables from the radio chassis and phonograph player Originally, the concept was intended as an easy method to unhook sources while troubleshooting the console during servicing.īy no later than 1938, RCA migrated the female connector to the rear panel of many of their desktop AM radio models to allow customers an easy method to attach an external phonograph or television at a later date. The connector was labelled on the back of radio with one of the following terms: “Victrola”, “Phono”, “Pick-up”, or “Television.” RCA later marketed a special turntable for 45 RPM records, the model 9JY. FROM THE 1930sīy no later than 1937, RCA introduced this design as an internal connector in their radio-phonograph floor consoles. Today, RCA jacks are often used in phono inputs, a set of input jacks usually located on the rear panel of a preamp, mixer or amplifier, especially on early radio sets, to which a phonograph or turntable is attached. They are also called an RCA phono connector or phono connector – the word phono in phono connector is an abbreviation of the word phonograph, because this connector actually was originally created to allow the connection of a phonograph turntable to a radio receiver. The basic definition of an RCA connector is that it is a type of electrical connector commonly used to carry audio and video signals.Īs you would imagine, the name RCA derives from the company Radio Corporation of America, which introduced the design in the 1930s. Hence, the connectors male plug and female jack are called RCA plug and RCA jack. And the only time a screwdriver was required was to mount the connector to something else. Old timers (Like me) Encountered a lot of these over the years. Inside this publication was more information about the original RCA connector, then simply called a Phono Tip Plug. With that in mind, have you ever wondered about the RCA Connectors history? Of course, as I showed you last time, they come in male versions:Īnd, again, while a bit more than the female version, they are reasonably priced too. (Yes, this appears to be a Phillips Head Screw and not a Green Colored driver. Starting at less than a dollar, you can put them right to work. You can now, and they are not expensive – just look at these Amazon prices SOMETHING NEWįor instance, could you use a female RCA connector in your work? This time, let us take a look at the, still very much in use, RCA or “Phono Connector.”įirst a look at what is new. Last time, I explored some of the newer, solderless, audio and DC power connectors. Simply finding ways to avoid using a soldering iron is good, but knowing more about the tools you use each day is not only interesting, but makes you aware of the “why” they were created. This time, he goes deeper into the “Phono Connector,” discussing what is available, but also delving into the history of the connector. Earlier in the year, Clay talked about the range of solderless connectors now available. Richard Haskey's: The Worst I've Ever Seen!.
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