microgroove record


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microgroove record

[′mī·krə‚grüv ‚rek·ərd]
(engineering acoustics)
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1931: Long-playing records (33rpm) were demonstrated in New York by RCA-Victor, but the venture failed because of the high price of the players and the first real microgroove records did not appear until 1948.
1931: Long-playing records (33 rpm) were demonstrated in New York by RCA-Victor, but the venture failed because of the high price of the players, and the first real microgroove records did not appear until 1948.
1931: Long-playing records (33rpm) were demonstrated in New Yorkby RCA-Victor, but the venture failed because of the high price of the players, and the first real microgroove records did not appear until 1948.