Electromagnetic transducer with twisted wire core

Claim 1

AN ELECTROMAGNETIC TRANSDUCER FOR READING OR RECORDING HIGH FREQUENCY MAGNETIC INFORMATION RESPECTIVELY FROM OR ON A TAPE, DISC OR DRUM COMPRISING: (A) A BUNDLE OF CONTINUOUS, DISCRETE, SIMILAR LENGTH INSULATED WIRES OF MAGNETIC MATERIAL HAVING THE MID PORTIONS THEREOF TWISTED UPON ONE ANOTHER FOR AT LEAST ONCE ABOUT THEIR LONG AXES, (B) SAID BUNDLE OF WIRE ELEMENTS BEING BENT INTO A TOROIDAL SHAPE WITH THE OPPOSITE END PORTIONS BROUGHT TOGETHER IN PARALLEL SPACED CONFIGURATING ARRANGEMENT SO THAT THESE PORTIONS ARE ADJACENT TO BUT SLIGHTLY SPACED FROM EACH OTHER TO FORM A POLE GAP THEREBETWEEN, (C) NON-MAGNETIC SPACER MEANS FILLING POLE GAP, (D) ELECTRICALLY CONDUCTIVE WIRE WRAPPED AROUND THE TWISTED MID-PORTION OF SAID BUNDLE OF ELEMENTS FORMING AN INDUCTIVE ELECTRICAL SIGNAL INPUT-OUTPUT ASSEMBLY THEREWITH, AND (E) ELECTRICAL CONNECTOR MEANS ATTACHED TO THE ENDS OF SAID ELECTRICALLY CONDUCTIVE SIGNAL ASSEMBLY AND EXTENDING AWAY THEREFROM FOR INTERCONNECTION TO A UTILIZATION DEVICE WHEREBY SAID TRANSDUCER MAY FUNCTION TO EITHER READ OR RECORD.