Electronic multi-range variable resistor

Details Electronic multi-range variable resistor Electronic multi-range variable resistor

1979-06-18

1981-06-16

Tolin, Gerald P.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338200, 338215, 338128, H01H 1918

Patent

active

042740754

ABSTRACT:
The application discloses an electronic multirange step resistor for adjustment of a timing relay with an analog adjustment which is equipped with a switch for the selection of the various resistance ranges and which is further equipped with a turning knob for the analog adjustment within each selected range.

REFERENCES:
patent: 1897596 (1933-02-01), Tietz
patent: 2884505 (1959-04-01), Strain
patent: 3230491 (1966-01-01), Drefus
patent: 3380010 (1968-04-01), De Young

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