Saturable reactor for pincushion distortion correction

Details Saturable reactor for pincushion distortion correction Saturable reactor for pincushion distortion correction

1974-03-14

1976-02-24

Wilbur, Maynard R.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315371, H01J 2956

Patent

active

039406628

ABSTRACT:
A saturable reactor for correction of pincushion distortion of a TV picture tube raster has, in one form, a magnetically saturable two window core. A single wire control coil is wound transversely around the central leg segment of the core and is connected with the vertical frequency sawtooth driver in a parabolic wave shaping network. A first load coil, wound transversely around one outer core leg, is connected in series circuit with the horizontal frequency sawtooth driver and the horizontal deflection coils. A second load coil is wound around the exterior of the core, in lengthwise embracing relation to its other outer leg, and is connected in series with the vertical deflection coils and also in a phase inverting resonant loop circuit.

REFERENCES:
patent: 3346765 (1967-10-01), Barkow
patent: 3433998 (1969-03-01), Wolber
patent: 3444422 (1969-05-01), Wolber
patent: 3609447 (1971-09-01), Hirota et al.
patent: 3611004 (1971-10-01), Smith et al.
patent: 3716748 (1973-02-01), Sohoma
patent: 3781500 (1973-12-01), Chapman

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