1. A FUNCTION GENERATING MAGNETIC AMPLIFIER COMPRISING: (A) PAIR OF GATE WINDINGS CONNECTIBLE TO ONE SIDE OF AN A.C. POWER SUPPLY FOR OPERATION DURING THE SAME ALTERNATE HALF CYCLES OF SAID POWER SUPPLY, (B) MEANS FOR CONNECTING SAID GATE WINDINGS ACROSS A LOAD FOR PUSH-PULL OPERATION, (C) SAID CONNECTING MEANS INCLUDING A UNIDIRECTIONAL IMPEDANCE CONNECTIBLE IN SERIES WITH THE LOAD TO OPPOSE CURRENT FLOW THROUGH THE LOAD IN ONE DIRECTION, (D) A CONTROL WINDING COUPLED IN PUSH-PULL RELATIONSHIP TO SAID GATE WINDINGS, (E) A BREAKPOINT CONTROL WINDING COUPLED IN PUSH-PULL RELATIONSHIP TO SAID GATE WINDINGS IN A DIRECTION OPPOSITE TO THAT OF SAID CONTROL WINDING, (F) MEANS FOR CONNECTING A BREAKPOINT CONTROL SIGNAL TO SAID BREAKPOINT CONTROL WINDING AND ESTABLISHING A FIRING ORDER OF SAID GATE WINDINGS PRODUCING AN OUTPUT IN A DIRECTION OPPOSED BY SAID UNIDIRECTIONAL IMPEDANCE, AND (G) MEANS FOR CONNECTING AN INPUT CONTROL SIGNAL TO SAID CONTROL WINDING AND REVERSING THE FIRING ORDER OF SAID GATE WINDINGS FROM THAT SPECIFIED BY SAID BREAKPOINT CONTROL SIGNAL WHEN THE INPUT CONTROL SIGNAL REACHES A GIVEN STRENGTH, WHEREUPON THE OUTPUT SIGNAL WILL BE IMPOSED ON SAID LOAD.