| 摘要 |
<p>A magnetic transducer of the erasing type, in which the coil (22) is pre-wound to achieve greater manufacturing economy; and in which for the same reason, and also for electromagnetic operating efficiency, the core (21) is laminated with each lamination being of one-piece fabrication. However, the single transducing gap (27) in the core (21) is too small to permit threading the coil (22) thereon. Therefore, the core is formed of flexible material so that the gap can be enlarged to accept the coil during assembly. Alternatively, the core can be fabricated initially with an enlarged gap, and the flexible core is then bent to provide a desired gap length after the coil is assembled thereon. A variational form of the invention has two erase gaps and one record-play gap with a separate coil therefor.</p> |
