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Vinyl records are discs with a single groove on each side. The groove has undulations which are picked up by a stylus (needle in crude terms) and a transducer (cartridge) into which the stylus is inserted. The disc rotates at a constant speed and the stylus rides the groove. The signal generated by the cartridge in amplified many thousands of times and is reproduced by loudspeakers. Vinyl is the material which replaced the earlier shellac and even earlier wax as "unbreakable" records.

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9y ago

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