Driver circuit having paralleled transistors and current-variable resistive elements

An improved driving circuit including a magnetically permeable core, a high voltage secondary winding around said core, said secondary winding being connectable to a device to be powered, a circuit connectable to a D.C. power source and being magnetically coupled to said secondary winding to induce a voltage thereacross sufficient to power a device, a plurality of connected primary windings wound around said core, a RC network and a plurality of parallel connected transistors coupled to said primary windings and said RC network with each respective transistor having a base terminal connected to said RC network by a respective current-variable resistive element,

• said improved circuit further including said primary windings having a first primary winding connected in series with a plurality of second primary windings and each of said first and second windings connected in parallel with a respective capacitor.