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The first commercially successful type of electrical phonograph pickup was introduced in 1925. Although electromagnetic, its resemblance to later magnetic cartridges is remote: it employed a bulky horseshoe magnet and used the same single-use steel needles which had been standard since the first mechanical transfer disc record players appeared in the 1890s.
Crosley Radio is an audio electronic manufacturing company headquartered in Louisville, Kentucky. It is a modern incarnation of the original Crosley Corporation which existed from 1921 to 1956. Modern Marketing Concepts resurrected the Crosley name after the original brand was discontinued by parent company Avco in 1956, due to declining sales.
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An advertisement for Edison New Standard Phonograph, 1898 An advertisement for the Columbia Grafonola. This is a list of phonograph manufacturers.The phonograph, in its later forms also called a gramophone, record player or turntable, is a device introduced in 1877 for the mechanical recording and reproduction of sound.
The World Record Controller was an attachment for ordinary record players that slowed the turntable down when playing the outside of the record and allowed it to gradually speed up as the needle was carried inward by the groove. Of course, only special World records could be used. The World system was a commercial failure.
Crosley operated the facilities for the government until 1963. In 1945, the Crosley interests were purchased by Aviation Corporation. The radio and appliance manufacturing arm changed its name to Avco, but the broadcast operations continued to operate under the Crosley name until they adopted the Avco name in 1968.
Crosley's best year was 1948, when it sold 24,871 cars, but sales began to fall in 1949. Adding the Crosley "Hotshot" sports model and an all-purpose vehicle called the "Farm-O-Road" model in 1950 did not stop the decline. Only 1,522 Crosley vehicles were sold in 1952. Crosley sold about 84,000 cars before closing down the operation on July 3 ...
William K. Heine presented a paper "A Laser Scanning Phonograph Record Player" to the 57th Audio Engineering Society (AES) convention in May 1977. [1] The paper details a method developed by Heine that employs a single 2.2 mW helium–neon laser for both tracking a record groove and reproducing the stereo audio of a phonograph in real time.