Patent ID: 8023360

Claim:
A detector of an electromagnetic seismic precursor comprising: (a) an antenna to receive electromagnetic radiation; (b) a transducer selectively conducting in response to receipt of said electromagnetic radiation by said antenna; and (c) a transistor including a collector-base junction at an interface of a base and a collector and a base-emitter junction at an interface of said base and an emitter, said base and said collector conductively connected to a first electrical potential such that said collector-base junction is reverse biased and said emitter conductively connected to said transducer such that when said transducer conducts said emitter is connected to a second source of electrical potential such that said base-emitter junction is forward biased initiating an initial current in said base-emitter junction, said initial current reversing said bias of said base-emitter junction and enabling a resonating current in said base-emitter junction at a voltage substantially less than a junction forward voltage of said base-emitter junction, said reverse bias being of insufficient magnitude to cause an avalanche breakdown of said base-emitter junction.