DocumentCode
1122221
Title
The pyramid stylus
Author
O´Neal, C.
Author_Institution
Fidelitone, Inc., Chicago, Ill
Issue
6
fYear
1959
Firstpage
140
Lastpage
147
Abstract
A new shape for a phonograph needle stylus is described which greatly improves the reproduction possibilities from phonograph records. The new stylus was specifically produced for use with 45°-45° stereo recordings, but will perform equally well on all microgrooved monaural recordings. The scheme described evolves a shape of reproducing stylus having a basic geometry relating to the cutting stylus used in forming all microgrooves. Computations, experimental data and charts are also used to support the improvements to be expected in reproduction performance.
Keywords
Acoustic noise; Acoustical engineering; Audio systems; Electronics packaging; Geometry; Mechanical factors; Microscopy; Needles; Production; Shape;
fLanguage
English
Journal_Title
Audio, IRE Transactions on
Publisher
ieee
ISSN
0096-1981
Type
jour
DOI
10.1109/TAU.1959.1166221
Filename
1166221
Link To Document