Aging process for cathode ray tubes

Details Aging process for cathode ray tubes Aging process for cathode ray tubes

H - Electricity

01

J

316/11, 313/35.1

H01J 9/44 (2006.01) H01J 29/50 (2006.01)

Patent

CA 1304774

ABSTRACT: Improved aging process for cathode ray tubes. An improved aging process for a cathode ray tube in which the main focusing grid (G3) is aged at a potential below that of the G2 grid, resulting in significantly reduced incidence of dark center cathode. In a typical example of the process the G3 grid is at a voltage of at least 100 volts, which voltage is at least 50 volts less than the G2 grid voltage.

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