a horizontal deflection output circuit , such as used in a tv receiver or a display device , includes a series circuit composed of a ringing preventing resistor and a one - way switching element connected in parallel with a linearity correcting coil . that one - way switching element is turned on at the beginning of a horizontal scanning period to feed a current to the ringing preventing resistor but is turned off in the vicinity of a fly - back period to block the flow of the current to the ringing preventing resistor . thus , the power loss due to the current flowing through the ringing preventing resistor for the fly - back period can be reduced according to the present invention .