Tuning apparatus

Details Tuning apparatus Tuning apparatus

1978-05-11

1980-01-22

Herrmann, Allan D.

Machine element or mechanism

Shaft operators

Preselected position

74409, 334 7, H03J 106, H03J 108, G05G 102

Patent

active

041843797

ABSTRACT:
An improved tuning apparatus with manual and pushbutton tuning with compact low profile design. For pushbutton tuning operation gear segment members loaded with a spring bias are arranged for engagement with each of the pushbutton devices to eliminate any lost motion being imparted to the core slide bar. Motion imparted to the slide bar actuates the cores and associated coils to change frequency. A declutching mechanism is used when using the pushbutton operation to remove the core slide bar from engagement with a manual drive input.

REFERENCES:
patent: 2162282 (1939-06-01), Leishman
patent: 3174356 (1965-03-01), Michalec
patent: 3365973 (1968-01-01), Henden
patent: 3727156 (1973-04-01), Olah
patent: 3906806 (1975-09-01), Harlan
patent: 3946344 (1976-03-01), Wilkinson

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