Transistor voltage converter

Claim 1

A SELF-OSCILLATING CIRCUIT ARRANGEMENT FOR CONVERTING A LOW DIRECT VOLTAGE INTO A HIGHER ALTERNATING VOLTAGE, COMPRISING TWO PUSH-PULL CONNECTED JUNCTION TRANSISTORS EACH HAVING BASE-, EMITTER- AND COLLECTOR-ELECTRODES, A WINDING CONNECTED BETWEEN THE COLLECTOR ELECTRODES OF SAID TRANSISTORS, SAID WINDING HAVING A CENTER TAP CONNECTED TO ONE TERMINAL OF A SOURCE OF LOW DIRECT VOLTAGE, THE OTHER TERMINAL OF SAID SOURCE BEING CONNECTED TO THE EMITTER-ELECTRODES OF SAID TRANSISTORS, A CAPACITOR COUPLED WITH SAID WINDING, SAID CAPACITOR CONSTITUTING A RESONANT CIRCUIT IN COMBINATION WITH THE INDUCTANCE OF SAID WINDING EFFECTIVE IN THE COLLECTOR CIRCUITS OF THE TRANSISTORS, THE RESONANCE FREQUENCY OF SAID RESONANT CIRCUIT PRINCIPALLY DETERMINING THE OPERATING FREQUENCY OF THE ARRANGEMENT, AND REGENERATIVE FEEDBACK MEANS INTERCOUPLING THE BASE ELECTRODE OF EACH TRANSISTOR AND THE COLLECTOR-ELECTRODE OF THE OTHER TRANSISTOR, THE COLLECTOR-EMITTER CIRCUIT OF EACH TRANSISTOR INCLUDING AN INDUCTOR CONNECTED IN SERIES THEREIN, SAID INDUCTOR PREVENTING A SHORT-CIRCUIT OF THE COLLECTOR-EMITTER CIRCUIT BY THE SAID CAPACITOR WHEN AN ASSOCIATED TRANSISTOR BECOMES CONDUCTIVE AND ALSO PROLONGING THE EFFECT OF SAID REGENERATIVE FEEDBACK MEANS DURING THE CONDUCTING PERIOD OF EACH OF SAID TRANSISTORS.