Abstract: A balanced demultiplexer for an FM stereophonic receiver includes a differentially connected switching circuit, a differentially connected crosstalk cancellation circuit and a differential amplifier circuit which is connected as a constant current source to the switching and cancellation circuits. The switching signal is applied to both the switching and cancellation circuits but in reverse phase. An input composite signal is applied to the differential amplifier which causes crosstalk components to appear in reverse phase at the outputs of the switching and cancellation circuits. In order to eliminate distortion due to nonlinearities of the input transistor in the differential amplifier, an operational amplifier is connected between the emitter and base circuits of the transistor to provide negative feedback.