Fidelipac
Magnetic tape sound recording format used in broadcasting / From Wikipedia, the free encyclopedia
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The Fidelipac, commonly known as a "NAB cartridge" or simply "cart", is a magnetic tape sound recording format used for radio broadcasting for playback of material over the air including radio commercials, jingles, station identifications, and music as well as for indoor background music. Fidelipac is the official name of the industry standard audio tape cartridge.
It was developed in 1954[1][2] by inventor George Eash[3][4] (although the invention of the Fidelipac cartridge has also been credited to Vern Nolte of the Automatic Tape Company[5][6]); it was commercially introduced in 1959 by Collins Radio Co. at the 1959 NAB Convention. The cartridge was often used at radio stations until the late 1990s, when such formats as MiniDisc and computerized broadcast automation were predominant.