Magnetic core switching and selecting circuits

Claim 1

A MAGNETIC CORE STORAGE MATRIX ARRANGED TO OPERATE ON THE COINCIDENT CURRENT PRINCIPLE AND COMPRISING A PLURALITY OF COLUMN DRIVE WIRES, A PLURALITY OF ROW DRIVE WIRES, A PLURALITY OF MAGNETIC CORES, ONE AT EACH OF THE INTERSECTIONS OF THE COLUMN DRIVE WIRES WITH THE ROW DRIVE WIRES SELECTING CIRCUITS FOR SELECTING ONE OF SAID COLUMN DRIVE WIRES AND ONE OF SAID ROW DRIVE WIRES, EACH SELECTING CIRCUIT INCLUDING A TRANSISTOR CURRENT DEFINING CIRCUIT, A PRIMARY TRANSISTOR SELECTOR STAGE CONNECTED BETWEEN THE OUTPUT OF SAID CURRENT DEFINING CIRCUIT AND ONE END OF THE DRIVE WIRE ASSOCIATED THEREWITH, A SECONDARY TRANSISTOR SELECTOR STAGE CONNECTED TO THE OTHER END OF SAID DRIVE WIRE, A FIRST SOURCE OF OPERATING POTENTIAL FOR MAINTAINING THE TRANSISTOR IN SAID CURRENT DEFINING CIRCUIT CONDUCTIVE TO A DEFINED STATE WHEN SAID DRIVE WIRE IS NOT BEING SELECTED, MEANS FOR CONDITIONING SAID PRIMARY TRANSISTOR AND SECONDARY TRANSISTOR SELECTOR STAGES FOR OPERATION, A THIRD SELECTOR STAGE, AN ALTERNATIVE SOURCE OF OPERATING POTENTIAL FOR THE TRANSISTOR IN SAID CURRENT DEFINING CIR-