Cathode ray tube socket with controlled spark gaps

Details Cathode ray tube socket with controlled spark gaps Cathode ray tube socket with controlled spark gaps

1979-11-09

1981-11-03

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Miscellaneous discharge devices

313318, 361129, 361130, H01J 1700, H01J 2100

Patent

active

042988152

ABSTRACT:
A cathode ray tube socket assembly incorporating controlled, or tuned, spark gaps coupling the high voltage focus grid system to ground to prevent television receiver damage caused by CRT arc-over. Incorporated within the CRT socket assembly are a high voltage spark gap connected to the CRT's G.sub.4 focusing grid and a lower voltage spark gap connected to G.sub.3 focusing grids, each spark gap including ridged sections defining an inter-electrode aperture. By varying the size of the inter-electrode aperture and its distance from each electrode, the spark gap's arc-over threshold voltage and breakdown voltage range from initial arc-over to continuous corona discharge may be precisely controlled.

REFERENCES:
patent: 3636412 (1972-01-01), Simovits et al.
patent: 3716819 (1973-02-01), Borth
patent: 3748521 (1973-07-01), Wright et al.
patent: 3805108 (1974-04-01), Suzuki
patent: 3869633 (1975-03-01), Dumas et al.
patent: 3916238 (1975-10-01), Suzuki
patent: 4056753 (1977-11-01), Keikichi et al.
patent: 4119878 (1978-10-01), Uda

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