(under subclass 165) Subject matter wherein means are provided for adjusting the inductance of either the primary or secondary winding or the mutual inductance between the primary and secondary winding, in the latter case, for example, by varying the position of the primary or secondary windings or parts thereof relative to each other.
SEE OR SEARCH CLASS
334, Tuners,
61+, for tuners having mutual inductance variable means.
115+, for adjustable coupling by relatively moving coils, and subclasses 130+ for relatively movable coil and core to vary the inductance. Class 336 is the general class for the structure of inductors including means to vary the inductance and mutual inductance.
