Abstract
WHEN recording oscillograms by means of a camera, it is desirable to photograph at the same time the scale markings engraved on the oscilloscope graticule; if the graticule includes scales of distance along the two axes, direct measurements may then be made on a subsequent enlargement. It is also necessary to have some positive means of identification for each oscillogram, and the best method is one which allows the relevant data to be photographed at the same time as the cathode-ray tube trace.
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COPE, F. Photographic Recording of Cathode Ray Tube Traces. Nature 174, 137–138 (1954). https://doi.org/10.1038/174137a0
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DOI: https://doi.org/10.1038/174137a0
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