Filtered semi-conductor resonant feedback oscillator

Claim 1

A FEEDBACK SEMICONDUCTOR OSCILLATOR COMPRISING A TRANSFORMER HAVING A PRIMARY AND A SECONDARY; A TRANSISTOR HAVING A BASE, AN EMITTER, AND A COLLECTOR; A SOURCE OF DIRECT CURRENT CONNECTED TO THE EMITTER; CONDENSER MEANS HAVING SUBSTANTIALLY UNIFORM CAPACITY AT AMBIENT TEMPERATURE CONNECTED BETWEEN THE SECONDARY OF THE TRANSFORMER AND THE BASE OF THE TRANSISTOR; A THERMISTOR IN HEAT TRANSMITTING PROXIMITY TO THE TRANSFORMER AND THE TRANSISTOR CONNECTED BETWEEN THE SECONDARY AND THE PRIMARY; A LINE CONNECTING THE PRIMARY TO THE COLLECTOR, WHEREBY THE SECONDARY, THE THERMISTOR, THE TRANSISTOR, THE PRIMARY, THE COLLECTOR, THE BASE AND THE CONDENSER MEANS ARE CONNECTED IN SERIES TO PROVIDE A SERIES RESONANT CIRCUIT; RESISTANCE MEANS CONNECTED BETWEEN THE PRIMARY AND THE BASE TO EFFECT A FORWARD BIAS ON THE BASE; AND A LINE TO OUTPUT CONNECTED TO THE TRANSFORMER SECONDARY.