DEGAUSSING COIL

PURPOSE: To suppress disturbing radiation by winding a conductive tape to the degaussing coil entirely to prevent undesired disturbing radio wave from a deflection circuit, a power supply circuit and a video circuit or the like and the emission of an electromagnetic wave and an electric field wave. CONSTITUTION: A conductive tape 2 being a nonmagnetic material is wound to the outer sheath of the degaussing coil 1. In order to avoid insulation breakdown, an insulation tape 5 is wound in advance. Since the overlapped conductive tapes 2 causes short-circuit, the tape 2 is wound overlappingly through an insulation material 7 to reduce the effect. Moreover, an earthing circuit 6 to connect electrically the conductive tape 2 to ground is provided to apply electrostatic shielding to the coil 1. The conductive tape 2 is used for the outer sheath of the coil 1 and the coil 1 is shielded, then the reduction in the magnetic reluctance is prevented and disturbing radiation from the coil 1 itself is suppressed by keeping the electrostatic shield effect. Furthermore, a metallic case covering a cathode ray tube is not required, the display monitor is made light in its weight.