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Journal Article

A New Profile for LP Records

Authors: Isom, Warren R.

Journal of the Audio Engineering Society · Volume 19 · Issue 7 · pp. 590–593 · July 1971

Abstract

A new dimension has been found for the thickness of the music groove area of the long playing 12-inch stereo record. The 30-mil thickness instead of 50 mils provides turbulent mixing during the molding of the record for better groove formation and increases the flexibility of the record for its rotational engagement with the turntable. This 90-gram record development is reviewed in full.

Details

Publication
Journal of the Audio Engineering Society
Volume
19
Issue
7
Pages
590–593
Publication date
July 6, 1971
Affiliation
RCA Records, Indianapolis, IN (See document for exact affiliation information.)
Type
Journal Article