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Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 3, March 1931)
[ACTIVE]

Recent Developments in RCA Photophone Portable Recording Equipment

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
This paper describes improvements made in the RCA Photophone Portable Recorder since the publication of the original paper describing this equipment. The new optical system and galvanometer, which require much less power for its operation, are described and illustrated. The new amplifier, considerably smaller and lighter than the previous one, is also described. Illustrations and electrical characteristics are given. This recorder is mounted upon a standard Mitchell camera and records by the Photophone variable-area method. The complete equipment weighs 450 pounds, including carrying cases and all accessories.
Publication Date
1931-03-01
DOI
10.5594/J13008
Link
https://doi.org/10.5594/J13008
Author(s)
P. M. Robillard, E. B. Lyford
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J13008.json

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P. M. Robillard and E. B. Lyford; Recent Developments in RCA Photophone Portable Recording Equipment, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 3, March 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J13008
Snippet:
P. M. Robillard and E. B. Lyford; Recent Developments in RCA Photophone Portable Recording Equipment, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 3, March 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J13008

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P. M. Robillard and E. B. Lyford; Recent Developments in RCA Photophone Portable Recording Equipment, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 3, March 1931); SMPTE, 1931. Available at https://doi.org/10.5594/J13008
Snippet:
<span class="citation">P. M. Robillard and E. B. Lyford; <cite>Recent Developments in RCA Photophone Portable Recording Equipment</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 3, March 1931); SMPTE, 1931. Available at <a href="https://doi.org/10.5594/J13008" target="_blank" rel="noopener">https://doi.org/10.5594/J13008</a></span>

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Preview:
P. M. Robillard and E. B. Lyford; Recent Developments in RCA Photophone Portable Recording Equipment, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 3, March 1931); SMPTE, 1931
doi: 10.5594/J13008
url: https://doi.org/10.5594/J13008
Snippet:
<li>
P. M. Robillard and E. B. Lyford; <cite id="bib-10-5594-j13008">Recent Developments in RCA Photophone Portable Recording Equipment</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 16, Issue: 3, March 1931); SMPTE, 1931
<span class="doi">10.5594/J13008</span>
</li>