| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a coil installed in the rotary transformer used for transmitting a recording and replaying signal for VTR, and a method of winding the same. SOLUTION: A coil for a rotary transformer is formed by bonding a wire on a single resin film sheet with use of heat generated by ultrasonic, and by bonding a wire on a surface coated by resin on its resin coating required part with use of heat generated by ultrasonic.</p> |
