Kernblechprofil an Magnetkoepfen

摘要

1301385 Magnetic heads W BOGEN 19 Feb 1970 [20 March 1969] 79987/70 Heading G5R A magnetic head core K has shoulders A, A1 between the gap C and outer edges B, B1 of the operative face and of such height and position as to compensate for distortion generated when the wavelength of a recorded signal approaches the length of the operative face BB1. The distance AA1 is 70% of the distance BB1 and the shoulder height is typically a few tenths of a millimetre.