SYNTHETIC MONOLITHIC FERRITE ARRAY

1,163,256. Magnetic storage apparatus. SPERRY RAND CORP. 6 June, 1968 [12 June, 1967], No. 27007/68. Heading H3B. A planar matrix of toroidal magnetic storage cores 12 each of external diameter A has all the cores in physical contact with their neighbours, each row of cores 16, 18 being offset by a distance A/2 with respect to the immediately adjacent rows so as to provide diagonal wirethreading paths through the matrix. With the cores of uniform thickness T and internal diameter B, the threading windows obtained each have a diameter of W=B-T. The cores are aligned in a core nest, Fig. 4 (not shown), connected to a vacuum pump, and after threading by column and row wires are transferred to a mounting frame 20.