Abstract: A resistor-printed board built in a flyback transformer for a video display appliance with a reduced size as well as the resistance error of the printed resistors. A focus volume and a screen volume are printed on one surface of the resistor-printed board, and a bleeder resistor is printed on the other surface thereof, so that the size of the resistor-printed board is reduced, and a focus voltage and a screen voltage to be supplied to the appliance are stably adjusted, not affected by the printed error of the bleeder resistor.

Abstract: The present invention relates to an apparatus that removes howling phenomena in a video display appliance capable of absorbing and damping vibrations arising from the output of a loudspeaker to remove the howling phenomena produced by the transfer of the vibrations to a cathode-ray tube. The apparatus includes a vibration-absorbing section mounted on the loudspeaker for absorbing vibrations generated and propagated from the loudspeaker due to the output of the loudspeaker, and a vibration-damping section having a predetermined space for receiving the vibration-absorbing section therein. The vibration-damping section disperses and damps the remaining vibrations passing through the vibration-absorbing section in the space.

Abstract: The present invention releases anion out of a main body of an end product, driven by convection caused by heat from heating parts inside the main body. According to this apparatus, anions are released out of the main body by circulating convective air flow caused by heat from heating parts at the lowest part inside the main body. Thus an extra fan and the related circuits are unnecessary.