Superregenerative transistor transceiver

Claim 1

A TRANSCEIVER CIRCUIT COMPRISING A TRANSISTOR HAVING A BASE, AN EMITTER AND A COLLECTOR, A VOLTAGE SOURCE HAVING FIRST AND SECOND TERMINALS AND AN INTERMEDIATE TERMINAL, SAID BASE BEING CONNECTED TO SAID INTERMEDIATE TERMINAL, A FIRST INDUCTOR CONNECTED AT ONE END TO SAID COLLECTOR, ANTENNA MEANS COUPLED TO SAID FIRST INDUCTOR, A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONDARY WINDING, A LOUDSPEAKER, MEANS FOR SELECTIVELY CONNECTING THE OTHER END OF SAID FIRST INDUCTOR TO SAID FIRST TERMINAL THROUGH ONE OF SAID PRIMARY WINDING AND SAID LOUDSPEAKER, CAPACITIVE MEANS HAVING A LOW IMPEDANCE ABOVE AUDIO FREQUENCIES CONNECTED BETWEEN SAID OTHER END OF SAID FIRST INDUCTOR AND SAID SECOND TERMINAL, A FIRST CAPACITOR CONNECTED ACROSS SAID COLLECTOR AND EMITTER, A SECOND CAPACITOR CONNECTING SAID EMITTER TO SAID SECOND TERMINAL, SAID FIRST INDUCTOR ALONG WITH SAID FIRST AND SECOND CAPACITORS FORMING A TANK CIRCUIT RESONANT AT A RADIO FREQUENCY, A SECOND INDUCTOR CONNECTED TO SAID EMITTER, A RESISTOR CONNECTING SAID SECOND INDUCTOR TO SAID SECOND TERMINAL, A THIRD CAPACITOR CONNECTED ACROSS SAID RESISTOR TO PROVIDE QUENCHING OF OSCILLATIONS AT A GIVEN FREQUENCY, MEANS FOR SELECTIVELY SHORTING SAID THIRD CAPACITOR, A FOURTH CAPACITOR HAVING A LOW IMPEDANCE AT SAID RADIO FREQUENCY, A CRYSTAL SHARPLY TUNED TO SAID RADIO FREQUENCY, MEANS FOR SELECTIVELY CONNECTING ONE OF SAID CRYSTAL AND SAID FOURTH CAPACITOR BETWEEN SAID BASE AND SAID SECOND TERMINAL, AN AUDIO AMPLIFIER INCLUDING A TRANSISTOR AND HAVING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, A MICROPHONE, AND MEANS FOR SELECTIVELY CONNECTING ONE OF SAID MICROPHONE AND SAID SECONDARY WINDING IN SAID INPUT CIRCUIT OF SAID AUDIO AMPLIFIER, SAID LOUDSPEAKER BEING CONNECTED IN SAID OUTPUT CIRCUIT OF SAID AUDIO AMPLIFIER.