Electrical signal generators

Oscillators – Automatic frequency stabilization using a phase or frequency... – Afc with logic elements

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331 16, H03B 308

Patent

active

041479939

ABSTRACT:
An electrical signal generator for generating signals at specific frequencies includes means for producing an adjustable frequency output, adjusting means for causing changes in the output frequency, and control means for adjustably pre-selecting the sizes of the frequency changes. In this way, the operator can be provided with a frequency changing control which, when operated, causes the output frequency to change in predetermined steps.

REFERENCES:
patent: 3657664 (1972-04-01), Brack
patent: 3689849 (1972-09-01), Swanson et al.
patent: 3815042 (1974-06-01), Maunsell et al.
patent: 3949305 (1976-04-01), McClaskey
patent: 3959737 (1976-05-01), Tanis

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