Society of Motion Picture and Television Engineers - Some Considerations Affecting the Design of Phonograph Needles

Author(s): R. T. Friebus
Publisher: Society of Motion Picture and Television Engineers
Publication Date: 1 October 1930
Volume: 15
Page(s): 484 - 493
ISSN (Paper): 0097-5834
DOI: 10.5594/J14774
Regular:

However simple a piece of apparatus the phonograph needle appears to be, as a necessary link in the chain of reproducing equipment it must be as strong qualitatively as every other link, or the... View More

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