1. IN A CIRCUIT ARRANGEMENT FOR PROVIDING A SERIES OF SUCCESSIVE PARAMANENT FLUX STORAGE STEPS IN A MAGNETIC ELEMENT HAING A RECTANGULAR HYSTERESIS LOOP CHARACTERISTICS, AN ADJUSTING WINDING ON SAID ELEMENT, MEANS FOR GENERATING A SERIES OF TIMES IMPULSES, GATE MEANS FOR PASSING EACH OF SAID IMPULSES TO SAID ADJUSTING WINDING TO CHANGE THE STATE OF MAGNETIZATION OF SAID ELEMENT, MEANS FOR DETECTING THE CHANGE IN SAID ELEMENT FROM A REVERSIBLE MAGNETIZATION TO AN IRREVERSIBLE MAGNETIZATION, AND CONTROL MEANS OPERABLE RESPONSIVE TO SAID DETECTION FOR CONTROLLING SAID GATE MEANS TO TERMINATE EACH SAID INPULSE A PREDETERMINED TIME AFTER SAID DETECTION, SAID CONTROL MEANS INCLUDES MEANS FOR GENERATING A START PULSE IN RESPONSE TO SAID CHANGE DETECTION AND FOR GENERATING A STOP PULSE A PREDETERMINED TIME INTERVAL THEREAFTER, AND WHEREIN SAID STOP PULSE OPERATES SAID GATE MEANS TO TERMINATE EACH SAID IMPULSE.