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Journal Article

The Limiting Tracking Weight of Gramophone Pickups for Negligible Groove Damage

Authors: Barlow, D. A.

Journal of the Audio Engineering Society · Volume 6 · Issue 4 · pp. 216–219 · October 1958

Abstract

It has been observed that when spherical styli are dragged over flat vinyl surfaces, scratches are produced under loads considerably exceeding the elastic limit as calculated from theory. The author, in this paper, describes the results of his experiments which bear out his argument that under load the point of yield begins below the surface; and reaches the surface, producing visible tracks, only after the calculated yield load is exceeded. This critical value of load for styli of various radii has been measured and found to be equivalent to, for a 1-mil stylus, 0.64 gm. for a 90° record groove. No size or skin effect was found with the vinyl material tested.

Details

Publication
Journal of the Audio Engineering Society
Volume
6
Issue
4
Pages
216–219
Publication date
October 6, 1958
Affiliation
Aluminium Laboratories, Ltd., Banbury, Oxon., England (See document for exact affiliation information.)
Type
Journal Article