US PATENT SUBCLASS 331 / 13
.~.~ Motor control of oscillator


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331 /   HD   OSCILLATORS

1 R  DF  AUTOMATIC FREQUENCY STABILIZATION USING A PHASE OR FREQUENCY SENSING MEANS {16}
10  DF  .~ Plural A.F.S. for a single oscillator {2}
13.~.~ Motor control of oscillator


DEFINITION

Classification: 331/13

(under subclass 10) Subject matter wherein at least one of the A.F.S. controls includes an electric motor for electromechanically adjusting a tuning reactance of the oscillator. Usually the motor control is utilized for coarse tuning while another A.F.S. control of the electronic type (e.g., including a reactance tube) is utilized for fine tuning of the oscillator.

SEE OR SEARCH THIS CLASS, SUBCLASS:

24, for oscillators wherein low frequency modulation of the generated oscillations is utilized for A.F.S. and wherein the signal comparator is of the electric motor type.

29, for oscillators wherein an electromechanical signal comparator is utilized in the A.F.S. loop.

35, for A.F.S. oscillators with electromechanically controlled oscillator frequency adjusting means.