(under subclass 26) Subject matter in which the linkage device between the electromagnetic operator and variable tuning unit is a mechanical coupling element or tool which is adapted to be connected to or disconnected from the tuning element.
(1) Note. Subject matter usually found in this subclass consists of motor circuits which drive alignment tools such as, for example, a screwdriver which may be connected to the tuner element of a tuned circuit, the motor circuit then
adjusts the resonance of the circuit to some preset value. Such tool driven aligning apparatus find particular use in production line tuning of a large number of tuned circuits.
SEE OR SEARCH CLASS
324, Electricity: Measuring and Testing,
600+, for measuring and testing impedance, admittance and related quantities.
330, Amplifiers, 2, for amplifiers with condition indicating or testing means.
