Deflection unit for cathode ray tubes

摘要

A deflection unit for a cathode ray tube, the deflection unit having saddle-shape sets of coils which are wound in slots which extend along the inside of a one-piece coil form. The coil form is flared so as to conform to the outer surface of the envelope of a cathode ray tube. The coils are wound so as to be interleaved in respective slots of the coil form thereby ensuring that the two sets of coils have substantially equal diameters with respect to a central longitudinal axis of the coil form. In further embodiments, apparatus is provided for rotatably affixing the deflection unit to the cathode ray tube so as to permit rotation of the cathode ray tube image. Such rotation may be achieved by an electric motor.