Horizontal width control circuit for image display apparatus

Details Horizontal width control circuit for image display apparatus Horizontal width control circuit for image display apparatus

1980-09-22

1982-06-08

Hubler, Malcolm F.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315370, 315379, 315397, H01J 2970

Patent

active

043341730

ABSTRACT:
A horizontal width control circuit for use with an image display apparatus includes first and second variable inductors connected in series and shunt relationship respectively with a horizontal deflection coil. The inductance of the inductors are variable in opposite directions for controlling the extent of horizontal deflection through a relatively large range of values without detuning the horizontal deflection circuits.

REFERENCES:
patent: 2900565 (1959-08-01), Moore
patent: 3769542 (1973-10-01), Pieters
patent: 3914650 (1975-10-01), Verbeij

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