Adjustable voltage supply

Claim 1

AN ADJUSTABLE VOLTAGE SUPPLY COMPRISING IN COMBINATION A PULSE TRANSFORMER HAVING FIRST, SECOND AND THIRD TERMINALS, A RELATIVELY HIGH POTENTIAL PULSE APPEARING BETWEEN SAID FIRST AND THIRD TERMINALS AND A RELATIVELY LOW POTENTIAL PULSE APPEARING BETWEEN SAID SECOND AND THIRD TERMINALS WHEN THE TRANSFORMER IS ENERGIZED, A RECTIFIER HAVING AN INPUT ELECTRODE COUPLED TO SAID FIRST TRANSFORMER TERMINAL AND HAVING AN OUTPUT ELECTRODE, A FIRST WINDING, A SECOND WINDING, MEANS FOR CONNECTING SAID SECOND TRANSFORMER TERMINAL THROUGH SAID FIRST AND SECOND WINDINGS IN SERIES TO SAID THIRD TRANSFORMER TERMINAL, A THIRD WINDING, MEANS FOR COUPLING SAID THIRD WINDING BETWEEN SAID RECTIFIER OUTPUT ELECTRODE AND THE JUNCTION OF SAID SERIES CONNECTED FIRST AND SECOND WINDINGS, AND MEANS FOR ADJUSTING THE VOLTAGE DEVELOPED AT SAID RECTIFIER OUTPUT ELECTRODE, SAID LAST NAMED MEANS COMPRISING AN ADJUSTABLY POSITIONED COMMON CORE FOR SAID FIRST, SECOND AND THIRD WINDINGS.