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  • Other Sources  (4)
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  • 1
    Publication Date: 2019-06-27
    Description: Small magnetic sweep deflection circuits operate a hand-held lunar television camera. They convert timing signals from the synchronizer into waveforms that provide a raster on the vidicon target. Raster size remains constant and linear during wide voltage and temperature fluctuations.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: MSC-1263
    Format: application/pdf
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  • 2
    Publication Date: 2019-06-27
    Description: Electromagnetic deflection yoke stores energy during the scan and releases it in the flyback or retrace. The operation of the device involves a method of switching to a voltage high enough to dissipate the flyback pulse during the retrace time and then operating during the scan time at a much lower voltage.
    Keywords: ELECTRONIC COMPONENTS AND CIRCUITS
    Type: MSC-11597
    Format: application/pdf
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  • 3
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    In:  Other Sources
    Publication Date: 2019-07-13
    Description: Electronic imaging systems with TV vidicon competition with film photography for spaceborne solar astronomy, comparing resolution, sensitivity and SNR
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Seminar-in-Depth on Instrumentation in astronomy; Mar 13, 1972 - Mar 15, 1972; Tucson, AZ
    Format: text
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  • 4
    Publication Date: 2019-07-13
    Description: The development of the electronic subsystems used for the photoheliograph and its application for a high resolution study of the sun are discussed. Basic considerations are as follows: (1) determination of characteristics of solar activity within the spectral response of the photoheliograph, (2) determination of the space vehicles capable of carrying the photoheliograph, (3) analysis of the capability of the ground based data gathering network to assimilate the generated information, and (4) the characteristics of the photoheliograph and the associated spectral filters.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-CR-125690
    Format: application/pdf
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