Deflection system for a cathode ray tube

Details Deflection system for a cathode ray tube Deflection system for a cathode ray tube

1974-06-12

1976-06-08

Farley, Richard A.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315365, 315389, 340324A, H01J 2970

Patent

active

039626040

ABSTRACT:
Deflection system for a cathode ray tube used in synthetic generators of curves comprising a vertical deflection device and a horizontal deflection device. Each of the devices comprises a main loop with a main deflection coil producing a deflection having a high amplitude with a slow variation and a secondary loop with a secondary coil producing a deflection having a low amplitude with a rapid variation; the main loop is fed by a deflection signal and produces an error signal feeding the secondary loop. Compensation for the delay and for the faults inserted by the main loop and use of only one deflection signal for each device is provided.

REFERENCES:
patent: 3449620 (1969-06-01), Caron et al.
patent: 3757162 (1973-09-01), Johnson

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