Phase modulation transmitter

Claim 1

IN A HIGH FREQUENCY PHASE MODULATED TRANSMITTER OF IMPROVED STABILITY, A CRYSTAL CONTROLLED TRANSISTOR OSCILLATOR INCLUDING A TRANSISTOR HAVING EMITTER, COLLECTOR, AND BASE ELEMENTS, AND A CRYSTAL INTERCONNECTING THE BASE AND COLLECTOR ELEMENTS, RESISTANCE MEANS PROVIDING A D.-C. BIAS ON THE BASE ELEMENT AND MEANS APPLYING A D.-C. POTENTIAL ACROSS THE EMITTER AND COLLECTOR ELEMENTS, A GROUNDED BASE TRANSISTOR PHASE MODULATOR COMPRISING A TRANSISTOR HAVING BASE, COLLECTOR AND EMITTER ELEMENTS, MEANS COUPLING THE COLLECTOR ELEMENT OF THE OSCILLATOR TRANSISTOR TO THE EMITTER ELEMENT OF THE MODULATOR TRANSISTOR, AND MEANS INTRODUCING A MODULATING SIGNAL INTERMEDIATE THE GROUND CONNECTION AND THE BASE ELEMENT OF THE MODULATOR TRANSISTOR, A PLURALITY OF TRANSISTOR FREQUENCY MULTIPLICATION STAGES AND TUNED CIRCUIT COUPLING MEANS INTERCONNECTING SAID MODULATOR AND SAID FREQUENCY MULTIPLIER STAGES IN CASCADED RELATION.