A base voltage of a regulator transistor (Q2) is developed during normal operation in a filter capacitor (C2) coupled to a flyback transformer (24) of a horizontal deflection circuit (Q5,LY,CS). After a transition to a standby mode of operation, the deflection circuit is disabled and the capacitor begins discharging. The emitter of the transistor is coupled to a load circuit (L3). A supply voltage (+V1) is coupled to the collector of the transistor during both standby and normal mode. To reduce the loading of a standby power supply that generates the collector voltage as long as the capacitor is not fully discharged, an active turnoff (Q3) of the regulator transistor is provided immediately after the receiver goes into the standby mode of operation so as to actively turnoff the current drawn by the transistor.
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