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Number of Records Matching Query: 1
 
45 RPM GRAMOPHONE RECORD
EVENT
 
Event Date: Saturday 1 January 1949
Description: 7 remained the standard size for vinyl singles, 12 singles were introduced for use by DJs in discos in the 1970s.
Summary: 45 rpm gramophone record. The most common form of the vinyl single is the 45 or 7 inch, the names are derived from its play speed, 45 rpm and the standard diameter 7 (18 cm). The 7 45 rpm record was introduced in 1949 by RCA as a smaller, more durable and higher-fidelity replacement for the 78 rpm shellac discs.

 

 
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