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Title: Single gun color picture tube brightener

Abstract: A means is disclosed for selectively and collectively increasing the emission of each color cathode of a single gun color picture tube. By placing a variable resistance between each color cathode and the control grid, this provides a source for increasing the voltage between the control grid and the selected color cathode. As the resistance of the control is decreased the emission of that color cathode is increased, thereby making it possible to increase emission on any or all cathodes.


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Inventors: Anglin, Russell E. (San Jose, CA, US)

Application Number: 758422
Filing Date: 1977-01-11
Publication_date: 1979-02-13
Assignee:
Primary Class(es): 348/655 313/409, 313/441, 315/14, 348/691
Other Classes:
US Patent Ref:
3059140Oct, 1962Heuer315/13.
3927346Dec, 1975Spannhake358/74.
3967314Jun, 1976Anglin358/29.

Other Refs:
Primary Examiner: Richardson, Robert L.
Assistant Examiner:
Attorney: