Amplitude regulated oscillator circuit

Claim 1

A REGULATED OSCILLATOR CIRCUIT COMPRISING AN AMPLIFIER DEVICE HAVING AN INPUT CIRCUIT MEANS AND AN OUTPUT CIRCUIT MEANS FOR PRODUCING AN OUTPUT SIGNAL, A FEEDBACK ELECTRICAL CIRCUIT MEANS CONNECTED BETWEEN SAID OUTPUT CIRCUIT MEANS AND SAID INPUT CIRCUIT MEANS FOR RETURNING A PORTION OF SAID OUTPUT SIGNAL AS A FEEDBACK SIGNAL TO SAID INPUT CIRCUIT MEANS IN SUCH A PHASE SENSE THAT SAID FEEDBACK SIGNAL TENDS TO INCREASE THE AMPLITUDE OF SAID OUTPUT SIGNAL THEREBY PRODUCING OSCILLATIONS IN SAID AMPLIFIER DEVICE, A FREQUENCY SELECTING ELEMENT IN SAID FEEDBACK ELECTRICAL CIRCUIT MEANS FOR DETERMINING THE FREQUENCY OF SAID OSCILLATIONS, A VARIABLE ATTENUATING CIRCUIT MEANS CONNECTED IN SHUNT WITH SAID FEEDBACK CIRCUIT MEANS WHEREBY THE MAGNITUDE OF SAID FEEDBACK SIGNAL MAY BE REGULATED BY VARYING THE IMPEDANCE THEREOF FOR REGULATING SAID OUTPUT SIGNAL MAGNITUDE, MEANS RESPONSIVE TO THE MAGNITUDE OF SAID FEEDBACK SIGNAL CONNECTED IN SHUNT WITH AT LEAST A PORTION OF SAID VARIABLE ATTENUATING CIRCUIT MEANS FOR VARYING THE IMPEDANCE OF SAID VARIABLE ATTENUATING CIRCUIT MEANS, AND SYSTEM OUTPUT CIRCUIT MEANS FOR CONNECTING SAID REGULATED OSCILLATOR CIRCUIT TO UTILIZATION CIRCUIT MEANS.