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Highway Hi-Fi was a system of proprietary players and seven-inch phonograph records with standard LP center holes designed for use in automobiles. Designed and developed by Peter Goldmark, [1] who also developed the LP microgroove, the discs utilized 135 grams of vinyl each, enough to press a standard 10-inch LP (12-inch LPs of the period commonly used 160 grams of vinyl each and 45s used ...
The most common diameter sizes for gramophone records are 12-inch, 10-inch, and 7-inch (300 mm, 250 mm, and 180 mm). [1] Early American shellac records were all 7-inch until 1901, when 10-inch records were introduced. 12-inch records joined them in 1903. [2]
Three vinyl records of different formats, from left to right: a 12 inch LP, a 10 inch LP, a 7 inch single. A phonograph record (also known as a gramophone record, especially in British English) or a vinyl record (for later varieties only) is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove.
A major reversal of Berliner's fortunes occurred when the mastering plant in Washington, D.C. burned down on September 29, 1897, destroying a hundred unissued masters and all of his record manufacturing equipment. [7] Within a few months, however, Berliner was up and running again, with some record production aspects moved to Philadelphia.
By 1977, BSR's factories were producing over 250,000 units a week; the majority of record changers installed in console stereos and bookshelf stereo systems during this era were manufactured by BSR. [2] BSR also made tape recorder mechanisms. [3] Bang & Olufsen used BSR's TD2 tape deck in their Beocord Belcanto from 1962. [4]
Best Wireless Surround Sound Systems. Best for Audio Fanatics: Nakamichi Shockwafe Elite. Best Theater Sound: Sony HT-A7000. Best Value: VIZIO M-Series 5.1. Best Upgrade For A Wired System ...
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