Contact Duplication of Transverse Videotape Recordings

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Broadcast-quality copies of quadruplex transverse videotape recordings have been produced in the laboratory by the contact-duplication process. The program material is recorded on high-coercivity tape in a mirror-image format. The oxide surfaces of this master tape and a conventional tape are pressed together and are passed through a transfer field to effect the duplication of the video material, while the audio, cue and control tracks are played back and re-recorded on the slave. Topics discussed include choices of production techniques for obtaining the high-coercivity master recording, comparison of the two basic configurations for a duplicating system, the copy rates obtainable with each of these configurations, and the major parameters to be considered in selecting a copy tape as well as a high-coercivity master. Performance characteristics which can be expected on distribution copies made by the contact duplication technique are presented.
Publication Date: 1970-10-01
DOI: 10.5594/J13581
Link: https://doi.org/10.5594/J13581
Author(s): Daniel D. Esterly

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Daniel D. Esterly; Contact Duplication of Transverse Videotape Recordings, Journal of the SMPTE ( Volume: 79, Issue: 10, October 1970); SMPTE, 1970. Available at https://doi.org/10.5594/J13581

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Daniel D. Esterly; Contact Duplication of Transverse Videotape Recordings, Journal of the SMPTE ( Volume: 79, Issue: 10, October 1970); SMPTE, 1970. Available at https://doi.org/10.5594/J13581

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Daniel D. Esterly; Contact Duplication of Transverse Videotape Recordings, Journal of the SMPTE ( Volume: 79, Issue: 10, October 1970); SMPTE, 1970. Available at https://doi.org/10.5594/J13581

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<span class="citation">Daniel D. Esterly; <cite>Contact Duplication of Transverse Videotape Recordings</cite>, Journal of the SMPTE ( Volume: 79, Issue: 10, October 1970); SMPTE, 1970. Available at <a href="https://doi.org/10.5594/J13581" target="_blank" rel="noopener">https://doi.org/10.5594/J13581</a></span>

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Daniel D. Esterly; Contact Duplication of Transverse Videotape Recordings, Journal of the SMPTE ( Volume: 79, Issue: 10, October 1970); SMPTE, 1970
doi: 10.5594/J13581
url: https://doi.org/10.5594/J13581

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<li>
Daniel D. Esterly; <cite id="bib-10-5594-j13581">Contact Duplication of Transverse Videotape Recordings</cite>, Journal of the SMPTE ( Volume: 79, Issue: 10, October 1970); SMPTE, 1970
<span class="doi">10.5594/J13581</span>
</li>