| 摘要 |
PURPOSE:To obtain the high efficiency of reproduction, by providing a continuous alloy material layer having high magnetic flux density ranging from a magnetic tape contact surface through a rear gap part on the butted surface of the core half body at the play side of the tape among a pair of core half bodies and forming a working gap between said alloy material layer and a core half body of the other side. CONSTITUTION:A pair of core half bodies 11 and 12 are formed with a ferrite material. An alloy material layer 14 (such as ''Sendust '',) of the saturation magnetic flux density higher than said ferrite material is formed to the core 12 at the play side[toward arrow (a)]of a magnetic tape 13 and on the surface to be butted to the other core 11. The layer 14 is continuous with at least a distance (l) a 3-10mu thickness and ranging from the tape contact surface through a rear gap 16 over a winding groove 15. As a result, the loss of current is reduced in the reproduction mode with an increment of the reproduction efficiency compared with a conventional head, and the recording is possible in the same way as conventional. Thus a recording/reproducing head is obtained to be suitably used to a tape having high resistance to magnetism. |
