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Phonograph - Wikipedia
A phonograph, in its later forms also called a gramophone (as a trademark since 1887, as a generic name in the UK since 1910) or since the 1940s called a record player, is a device for the mechanical and analogue recording and reproduction of sound. The sound vibration waveforms are
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Xem thêmUsage of terminology is not uniform across the English-speaking world (see below). In more modern usage, the playback device is often called a "turntable", "record player", or "record changer",
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Xem thêmPredecessors to the phonograph
Several inventors devised machines to record sound prior to Thomas Edison's phonograph, Edison being...
Xem thêmAlexander Graham Bell and his two associates took Edison's tinfoil phonograph and modified it considerably to make it reproduce sound from wax instead of tinfoil. They began their work at Bell's Volta Laboratoryin Washington, D. C., in 1879, and continued until they
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Xem thêmDiscs are not inherently better than cylinders at providing audio fidelity. Rather, the advantages of the format are seen in the manufacturing
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Xem thêmBerliner's lateral disc record was the ancestor of the 78 rpm, 45 rpm, 33⅓ rpm, and all other analogue disc records popular for use in sound recording. See gramophone record.
The 1920s brought improved radiotechnology. Radio sales...
Xem thêmTurntable construction
Inexpensive record players typically used a flanged steel stamping for the turntable structure. A rubber disc would be secured to the top of the stamping...
Xem thêmThe tone arm (or tonearm) holds the pickup cartridge over the groove, the stylus tracking the groove with the desired force to give the optimal
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Phonograph record - Wikipedia
A phonograph disc record (also known as a gramophone disc record, especially in British English), or simply a phonograph record, gramophone record, disc record, long-playing record, or record, is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiralgroove. The groove usually starts near the periphery and ends near the center of the disc. At first, the disc…
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Phonograph – Wikipedia
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Category:Phonographs - Wikimedia Commons
Phonographe — Wikipédia
Phonograph - Engineering and Technology History Wiki
History of the Cylinder Phonograph | History of Edison ...