Color picture display device with a circuit for generating a scr

Details Color picture display device with a circuit for generating a scr Color picture display device with a circuit for generating a scr

1978-08-08

1980-02-05

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315371, 358220, H01J 2952

Patent

active

041874510

ABSTRACT:
A color picture display device having a circuit for generating a screen grid voltage derived from the line deflection generator, while the high tension generator is separated. Via a resistance element, the screen grid is coupled to a source which generates a parabolic voltage of the field frequency with a curvature opposite to that obtained by rectifying the line flyback pulses owing to the east-west modulation, the resistance element, for example a voltage-dependent resistor, having in operation, a dynamic resistance which is many times lower than the static resistance thereof.

REFERENCES:
patent: 3185886 (1965-05-01), Leitich et al.
patent: 3407330 (1968-10-01), Wilmarth
patent: 4084115 (1978-04-01), Peer

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