Trimmer control mounted in potentiometer knob

Details Trimmer control mounted in potentiometer knob Trimmer control mounted in potentiometer knob

1985-10-04

1987-03-10

Broome, Harold

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338152, 338163, H01C 1016

Patent

active

046493662

ABSTRACT:
A trimmer control is mounted in a potentiometer knob to provide a compact controller for use in a device such as a hearing aid. The knob of the potentiometer is rotatably attached to a base housing which has a centrally located bore. A bracket extends through the bore of the housing and into a chamber located in the potentiometer knob. The bracket is fixedly attached at one end to the housing. The trimmer control is fixedly attached to the bracket and electrical leads of the trimmer control extend through a bore within the mounting bracket for connection with another circuit. The trimmer control is accessible through an opening in the potentiometer knob.

REFERENCES:
patent: 2881295 (1959-04-01), Brown
patent: 4453152 (1984-06-01), Dob et al.

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