CRT Spot suppression circuit
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United States of America Patent
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Jul 20, 1982
Grant Date -
N/A
app pub date -
Sep 24, 1979
filing date -
Sep 24, 1979
priority date (Note) -
Expired
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Abstract
In a CRT system having a cathode coupled to a source of first potential voltage and a control grid biased negatively with respect to the cathode, means coupled between a source of second potential voltage and control grid for superimposing negative-going transitions in the second potential voltage upon the control grid so as to suppress the appearance of spots upon the face of the CRT subsequent to the de-energization of that system.
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