Abstract: An electric power saving transformer for three-phase current with an automatic voltage transferring device, in an autotransformer of a three-phase three-wire system or a three-phase four-wire system, has phase-winding of one set or plural sets of main coils which are connected to input terminals on a three-phase core-type core; connecting plural sets of exciting coils mutually connected in series to wind the three-phase core-type core between the ends of the main coils by means of plural combinations of connection; connecting plural electric switches between the ends of the main coils and the exciting coils which are switched to ON/OFF based on a voltage value detected at the input or output terminals; and connecting and disconnecting between the ends of the main coils and the exciting coils, by switching ON/OFF of the electric switches stepwise on the same value of voltages or currents between the phases in order to automatically change output voltage correspondingly to input voltage onto voltage transferrin

Abstract: This invention relates to a deflection yoke device provided with a correction circuit in which horizontal and vertical misconvergences appearing on a screen of a color cathode-ray tube are corrected.

Abstract: The deflection yoke apparatus comprises the deflection yoke and the correction coil device which is fitted to the deflection yoke. The deflection yoke is provided with a pair of horizontal deflection coils and a pair of vertical deflection coils which are electrically separated from one another by the coil separator, and the deflection core made of magnetic material and is constructed so that the deflection magnetic field is generated in which the misconvergence of rasters appearing on the screen when three electron beams in the in-line arrangement are deflected is of only the horizontal component. The correction coil device comprises a pair of magnetic cores and correction coils wound around the pair of magnetic cores and shifts the both-side electron beams in the horizontal direction when the paraboloidal wave current is supplied to dynamically converge the electron beams in the full range of the screen.

Abstract: The deflection yoke comprises a pair of horizontal deflection coils, a pair of vertical deflection coils which are toroidally wound around the annular core and a coil separator which separates both coils one from another. The winding guide frame which has the winding engaging members is fitted to both open ends of the annular core. By use of these winding engaging members, the vertical deflection coils are wound around the frame core so that the winding turns are concentrated at a partial region of the winding guide frame at the screen side and the winding turns are divided into two regions of the winding guide frame at the electron gun side, in the form of V-shape.