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Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 4, April 1951)
[ACTIVE]

A-C Magnetic Erase Heads

Metadata

Publisher
SMPTE — White Plains, NY, USA
Doc Type
Journal Article
Content Type
Original Research
Abbreviated Title
J SMPTE
Volume
56, No. 4, pp. 407–410
Abstract
Various types of a-c magnetic erase heads of the ring-shaped type are described. After a brief mathematical treatment of the magnetic flux density required for erasing, there are given the measurements of the amount of erasure obtained with various heads used both singly and in cascade. Also included are curves showing the rise in temperature on part of two heads as a function of the 70-kc erase-current through the head.
Publication Date
1951-04-01
DOI
10.5594/J06335
ISSN
Print: 0898-042X
Link
https://doi.org/10.5594/J06335
Author(s)
M. RettingerEngineering Products Dept., RCA Victor Div., 1560 N. Vine St., Hollywood 28, Calif
Copyright
© 1951 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1. Menard J. C. , “High frequency Magnetophon magnetic sound recorders,” U.S. Fiat Report No. 705, Government Printing Office , Washington, D.C. EXTERNAL
  • 2. Frayne J. G. Wolfe H. , “Magnetic recording in motion pictures,” Jour. SMPE , vol. 53 , (p. 225 ) pp. 217 – 235 , Sept. 1949 . EXTERNAL
  • 3. U.S. Patent No. 2,498,423 ( 1950 ). EXTERNAL
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M. Rettinger; A-C Magnetic Erase Heads, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 4, April 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J06335
Snippet:
M. Rettinger; A-C Magnetic Erase Heads, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 4, April 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J06335

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M. Rettinger; A-C Magnetic Erase Heads, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 4, April 1951); SMPTE, 1951. Available at https://doi.org/10.5594/J06335
Snippet:
<span class="citation">M. Rettinger; <cite>A-C Magnetic Erase Heads</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 4, April 1951); SMPTE, 1951. Available at <a href="https://doi.org/10.5594/J06335" target="_blank" rel="noopener">https://doi.org/10.5594/J06335</a></span>

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Preview:
M. Rettinger; A-C Magnetic Erase Heads, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 4, April 1951); SMPTE, 1951
doi: 10.5594/J06335
url: https://doi.org/10.5594/J06335
Snippet:
<li>
M. Rettinger; <cite id="bib-10-5594-j06335">A-C Magnetic Erase Heads</cite>, Journal of the Society of Motion Picture and Television Engineers ( Volume: 56, Issue: 4, April 1951); SMPTE, 1951
<span class="doi">10.5594/J06335</span>
</li>