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The LP (from long playing [2] or long play) is an analog sound storage medium, specifically a phonograph record format characterized by: a speed of 33 + 1 ⁄ 3 rpm; a 12- or 10-inch (30- or 25-cm) diameter; use of the "microgroove" groove specification; and a vinyl (a copolymer of vinyl chloride acetate) composition disk.
After the 1940s, "vinyl" records made from polyvinyl chloride (PVC) became standard replacing the old 78s and remain so to this day; they have since been produced in various sizes and speeds, most commonly 7-inch discs played at 45 rpm (typically for singles, also called 45s ("forty-fives")), and 12-inch discs played at 33⅓ rpm (known as an ...
The 78 RPM speed was used for some children's records of all sizes well into the 1960s, as nearly all record players still included it and it allowed an old disused 78-only player to be put to work as a toy, expendable if it got damaged by rough handling. [citation needed]
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16 2/3rpm vinyl record: A label close-up on a 16rpm vinyl Mechanical analog; lateral groove, horizontal stylus motion - played at half the regular speed of an LP 1951 Minifon P55 Minifon cassette Analog, magnetic wire on reel, 30 cm/s or about 11.8 ips was quickly adopted by many governments as being the ultimate "spy" recorder of its day 1957 ...
As Newsweek reported, record sales grew in 2014 by more than 50 percent to hit more than a million, the highest since 1996 -- and sales are continuing to increase. Record owners are also ...
Creating a vinyl record; YouTube — Record Making With Duke Ellington (1937) A look at how early 78 rpm records were made. Kiddie Records Weekly — Recordings and case images from children's records of the 1940s and 1950s.
Records accounted for 71% of revenues from non-digital music formats, and for the second time since 1987, vinyl outpaced CDs in total sold. United Record Pressing underwent its own evolution.
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