Signal level adjuster

Details Signal level adjuster Signal level adjuster

1989-09-18

1990-11-27

Reynolds, Bruce A.

Electrical resistors

Mechanically variable

With electromagnetic operator

H01C 1014

Patent

active

049739387

ABSTRACT:
A signal level adjuster has a first variable resistor and a second variable resistor. The first variable resistor is inserted in a signal line, and the resistance thereof is variable by a motor. The second resistor is mechanically interlinked to a control knob on a control panel so that the resistance of the second resistor can be varied by the control knob. The motor is energized depending on a change in the resistance of the second variable resistor. The first level adjusting variable resistor may be positioned at any desired location so that and the signal transmission line is shortened.

REFERENCES:
patent: 2913694 (1959-11-01), Heselwood
patent: 3114126 (1963-12-01), McClay

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