Fixed adjusted flat capacitor

Details Fixed adjusted flat capacitor Fixed adjusted flat capacitor

1980-04-24

1982-01-19

Goldberg, Elliot A.

Electricity: electrical systems and devices

Electrostatic capacitors

361303, 361330, H01G 440, H01G 700

Patent

active

043120245

ABSTRACT:
An adjustable capacitor is provided on a printed circuit board or hybrid thick film circuit substrate having first and second metallic sheets separated by a sheet or layer of insulating material. The second sheet is provided with an adjustable portion. The second sheet and adjustable portion are divided into two parts by a cut along a first line. These two parts form capacitors with the first sheet. A third capacitor is formed between the two parts, and the value of this third capacitor can be trimmed or adjusted by cuts across the adjustable portion and preferably perpendicular to the first line until the desired value for the third capacitor is reached.

REFERENCES:
patent: 942620 (1909-12-01), Dearlove
patent: 2139453 (1938-12-01), Linder
patent: 2405529 (1940-08-01), Smith
patent: 3402448 (1968-09-01), Heath
patent: 3821617 (1974-06-01), Shelby
patent: 4161766 (1979-07-01), Castleberry

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