TRANSFORMER CORES AND DEFLECTION YOKE CORES FOR USE IN COLOR TV, MICRO INDUCTORS (PEAKING COILS), CAPACITORS, FERRITE CORES, MAGNETS, [ IRON CORES, MICROWAVE FERRITES, ISOLATORS FOR CONVERTERS, Y-TYPE VHF-UHF CIRCULATORS, ] CERAMIC ELECTROSTRICTION TRANSDUCER ELEMENTS AND FERRITE MAGNETOSTRICTION TRANSDUCER ELEMENTS;[ MEMORY CORES, MEMORY PLANES, ] PULSE TRANSFORMERS FOR ELECTRONIC COMPUTERS, [ COMPUTERS, AND BOOKKEEPING MACHINES ] ; MAGNETIC TAPES [ AND TAPE RECORDERS, REELS FOR MAGNETIC TAPE ], AND CASSETTES OR CARTRIDGES FOR MAGNETIC TAPE