what is 33 1 3 rpm vinyl record?
Both the microgroove LP 33 1 ⁄ 3 rpm record and the 45 rpm single records are made from vinyl plastic that is flexible and unbreakable in normal use. The vinyl records are easier to scratch or gouge, and much more prone to warping. - read more
The 33, a.k.a. the "LP" (Long Playing record) or "album", pictured above at left, was invented in 1948. These LPs were popular until around 1990 when CDs were popular enough to take over. ... Records of 33 1/3 rpm were developed in conjunction with films. - read more
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