A Crystal-Controlled Cordless Drive Motor for Motion-Picture Cameras

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 80, No. 6, pp. 486–488
Abstract: A crystal-controlled cordless universal motor has been developed to be compatible with the Nagra tape recorder, and to streamline camera equipment. A temperature-compensated crystal or tuning fork is used as a stable oscillator. The motor uses a highly efficient dc motor which operates in phase lock reference with a crystal source. Total system efficiency runs as high as 70%. The camera drive provides increased flexibility of movement of the camera. The absence of drive gearing, the use of sealed permanently lubricated bearings and all solid-state circuitry make this motor an extremely reliable, long-life device.
Publication Date: 1971-06-01
DOI: 10.5594/J05789
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J05789
Author(s): Edmund M. DigiulioCinema Product Development Co., 2044 Cotner Ave., Los Angeles, CA 90025.
Copyright: © 1971 Society of Motion Picture and Television Engineers, Inc.

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Edmund M. Digiulio; A Crystal-Controlled Cordless Drive Motor for Motion-Picture Cameras, Journal of the SMPTE ( Volume: 80, Issue: 6, June 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05789

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Edmund M. Digiulio; A Crystal-Controlled Cordless Drive Motor for Motion-Picture Cameras, Journal of the SMPTE ( Volume: 80, Issue: 6, June 1971); SMPTE, 1971. Available at https://doi.org/10.5594/J05789

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<span class="citation">Edmund M. Digiulio; <cite>A Crystal-Controlled Cordless Drive Motor for Motion-Picture Cameras</cite>, Journal of the SMPTE ( Volume: 80, Issue: 6, June 1971); SMPTE, 1971. Available at <a href="https://doi.org/10.5594/J05789" target="_blank" rel="noopener">https://doi.org/10.5594/J05789</a></span>

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Edmund M. Digiulio; A Crystal-Controlled Cordless Drive Motor for Motion-Picture Cameras, Journal of the SMPTE ( Volume: 80, Issue: 6, June 1971); SMPTE, 1971
doi: 10.5594/J05789
url: https://doi.org/10.5594/J05789

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<li>
Edmund M. Digiulio; <cite id="bib-10-5594-j05789">A Crystal-Controlled Cordless Drive Motor for Motion-Picture Cameras</cite>, Journal of the SMPTE ( Volume: 80, Issue: 6, June 1971); SMPTE, 1971
<span class="doi">10.5594/J05789</span>
</li>