Abstract: In a standby power supply for a television receiver, a rectifier arrangement, electrically nonisolated from a source of AC mains supply voltage, develops a first, nonisolated direct voltage that is present during both the on-state and the standby state of an on-off command signal generated by a remote control circuit. The primary winding of a standby transformer is coupled to the rectifier arrangement and to the AC voltage source for developing a second, nonisolated direct voltage of lower magnitude than the first direct voltage. The control circuit of a switched mode power supply is energized by the second direct voltage and is responsive to the on-off command signal for changing operation of the switched mode power supply between a standby mode and a run-mode. An electrically isolated secondary winding of the standby transformer develops a third direct voltage for energizing the remote control circuit during standby.