Degaussing device for a color television display tube

Details Degaussing device for a color television display tube Degaussing device for a color television display tube

1974-09-03

1976-06-22

Segal, Robert

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Pulse storing

H01J 2907, H01J 2984, H01F 1300

Patent

active

039653862

ABSTRACT:
A degaussing device for a color television display tube having three electron guns arranged in one horizontal plane and vertically directed phosphor strips on the display screen, comprising degaussing coils which envelop a major part of the conical surface of the tube and are arranged such as to generate a vertically directed magnetic field, and a capacitor connected parallel to the degaussing coils, the impedance of the capacitor being high at the frequency of the degaussing current and low at the frequency of the line deflection current.

REFERENCES:
patent: 3286122 (1966-11-01), Dietch
patent: 3340417 (1967-09-01), Panis et al.
patent: 3571652 (1971-03-01), Shiobara et al.
patent: 3588583 (1971-06-01), Ciecierski
patent: 3784868 (1974-01-01), Shinkai et al.
patent: 3872347 (1975-03-01), Matsushima et al.

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