| 摘要 |
A tunable coil assembly including a toroid or ring core and a variable cylindrical core means attached to the toroid core. The variable core means includes a slug movable within an electrically insulative coil form or holder. A turn(s) of electrically conductive wire is wound around both the toroid core and the adjustable core means. Another turn(s) of the wire may be wound around only the toroid core.
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