Remotely-actuated biomedical switch
R. D. Lee · NASA STI Repository (National Aeronautics and Space Administration) · 1969
Remotely-actuated biomedical switching circuit using transistors consumes no power in the off position and can be actuated by a single-frequency telemetry pulse to control implanted instrumentation. Silicon controlled rectifiers permit the circuit design which imposes zero drain on supply batteries when not in use.