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Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 3, March 1949)
[ACTIVE]

Frequency - Modulated Audio-Frequency Oscillator for Calibrating Flutter-Measuring Equipment

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
This paper describes an electronically frequency-modulated oscillator of the resistance-capacitance type which has been developed to facilitate rapid and accurate calibration and testing of flutter-measuring equipment; specifically, of the portable flutter indicator used in theater service work. It supersedes mechanically driven capacitor devices for producing the frequency-modulated 3000-cycle signal used for flutter-indicator calibration. It possesses the advantages of better frequency stability, purer wave form, and absence of spurious output impulses.
Publication Date
1949-03-01
DOI
10.5594/J12530
Link
https://doi.org/10.5594/J12530
Author(s)
P. V. Smith, Edward Stanko
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J12530.json

Reference this Doc

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P. V. Smith and Edward Stanko; Frequency - Modulated Audio-Frequency Oscillator for Calibrating Flutter-Measuring Equipment, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 3, March 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J12530
Snippet:
P. V. Smith and Edward Stanko; Frequency - Modulated Audio-Frequency Oscillator for Calibrating Flutter-Measuring Equipment, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 3, March 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J12530

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P. V. Smith and Edward Stanko; Frequency - Modulated Audio-Frequency Oscillator for Calibrating Flutter-Measuring Equipment, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 3, March 1949); SMPTE, 1949. Available at https://doi.org/10.5594/J12530
Snippet:
<span class="citation">P. V. Smith and Edward Stanko; <cite>Frequency - Modulated Audio-Frequency Oscillator for Calibrating Flutter-Measuring Equipment</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 3, March 1949); SMPTE, 1949. Available at <a href="https://doi.org/10.5594/J12530" target="_blank" rel="noopener">https://doi.org/10.5594/J12530</a></span>

SMPTE Icon SMPTE's HTML Pub

Preview:
P. V. Smith and Edward Stanko; Frequency - Modulated Audio-Frequency Oscillator for Calibrating Flutter-Measuring Equipment, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 3, March 1949); SMPTE, 1949
doi: 10.5594/J12530
url: https://doi.org/10.5594/J12530
Snippet:
<li>
P. V. Smith and Edward Stanko; <cite id="bib-10-5594-j12530">Frequency - Modulated Audio-Frequency Oscillator for Calibrating Flutter-Measuring Equipment</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 52, Issue: 3, March 1949); SMPTE, 1949
<span class="doi">10.5594/J12530</span>
</li>