(under subclass 78) Subject matter wherein the variable capacitor has a significant operating or driving means such as, for example, a gear train or cam operator.
SEE OR SEARCH THIS CLASS, SUBCLASS:
17+, for tuning units which may use a variable capacitor which is driven or adjusted by an electromagnetic operator.
SEE OR SEARCH CLASS
74, Machine Element or Mechanism,
10+, for assemblies particularly adapted for mechanically rotating one or more shafts of electronic tuning devices into desired angular positions. See also the Search Notes under this subclass for a complete field of search on driving
