(under subclass 74) Subject matter wherein a plurality of variable inductor tuners of the adjustable core type are so constructed and/or mechanically interlinked as to move in unison thereby adjusting together the respective tuning cores of each tuned circuit.
SEE OR SEARCH CLASS
333, Wave Transmission Lines and Networks,
24+, for coupling networks including plural coils and plural cores, and particularly indented subclasses 177+ for transformer coupling wave filters with magnetic core inductance.
336, Inductor Devices,
131+, for plural coils having plural movable cores which may be adjusted in unison.
338, Electrical Resistors, 130+, for ganged resistor elements.