Double depression magnetic keyswitch

摘要

A keyswitch for a keyboard which may generate either a first signal or a second signal is formed by a pair of saturable magnetic cores and corresponding drive and sense line wires that are molded into a unitary support assembly in a keyswitch housing. A plunger and a magnet assembly that is depressible relative to the housing and which supports at least one permanent magnet and a pair of compressible springs allows for the unsaturation of one core and the compression of one spring upon depression of the plunger to a first position and for the unsaturation of the second core by the compression of the second spring upon further depression of the plunger and magnet assembly to a character second position.