A magnetic time division multiplexer for use in control circuits

The essentially magnetic multiplexing system described uses saturable inductors and diodes interconnected so that sending and receiving ends of the information link operate as synchronous switches slaved to the ac line. The switching rate is proportional to the number of channels desired. The information may be encoded singly, simultaneously or serially; or in combination, simultaneously or serially; provided the pilot devices remain energized for at least one cycle of the ac supply voltage.