Data processing

Claim 1

A MAGNETIC RECORDER IN WHICH A GAP BETWEEN A MAGNETIC RECORDING MEDIUM AND EACH ONE OF A PLURALITY OF RADIALLY DISPOSED MAGNETIC TRANSDUCERS MAY BE VARIED COMPRISING A FLEXIBLE MAGNETIC RECORDING DISC HAVING AN ELECTRICALLY CONDUCTIVE SURFACE, MEANS FOR MOUNTING THE FLEXIBLE MAGNETIC RECORDING DISC IN A GASEOUS ATMOSPHERE, THE PRESSURE OF SUCH ATMOSPHERE BEING SUBSTANTIALLY LESS THAN ATMOSPHERIC PRESSURE, A PLURALITY OF MAGNETIC TRANSDUCERS, A STABILIZING PLATE HAVING AN ELECTRICALLY CONDUCTIVE REFERENCE SURFACE SUBSTANTIALLY COEXTENSIVE WITH THE ELECTRICALLY CONDUCTIVE SURFACE OF THE FLEXIBLE MAGNETIC RECORDING DISC, EACH ONE OF THE PLURALITY OF MAGNETIC TRANSDUCERS BEING MOUNTED FLUSH WITH THE REFERENCE SURFACE OF THE STABILIZING PLATE, MEANS FOR ROTATING THE FLEXIBLE MAGNETIC RECORDING DISC ADJACENT TO AND SPACED FROM EACH ONE OF THE PLURALITY OF MAGNETIC TRANSDUCERS, AND MEANS FOR APPLYING A FIRST ELECTRIC POTENTIAL TO THE REFERENCE SURFACE AND A SECOND ELECTRIC POTENTIAL TO THE ELECTRICALLY CONDUCTIVE SURFACE OF THE FLEXIBLE MAGNETIC RECORDING DISC, TO CONTROL THE SPACING BETWEEN EACH ONE OF THE PLURALITY OF MAGNETIC TRANSDUCERS AND THE FLEXIBLE MAGNETIC RECORDING DISC.