Slide rheostat

Details Slide rheostat Slide rheostat

1983-08-30

1985-03-12

Envall, Jr., Roy N.

Electrical resistors

Mechanically variable

Movable contact electrically adjustable over length of...

338196, 338165, H01C 1038

Patent

active

045048185

ABSTRACT:
In a slide rheostat with first and second light sources wherein at least one set of resistor and collector is printed on an insulating base plate so as to establish a variable resistance, and wherein the first and second light sources are disposed so as to display the resistance in either of their emission colors, the light sources being connected to a common lead and at least one power supply lead so as to be energized; the improvement comprising the fact that the power supply lead is formed with a portion adopted to accommodate the sliders energizing both of the light sources so as to emit light in the composite color of their emission colors.

REFERENCES:
patent: 3735047 (1973-05-01), Kawada et al.
patent: 3909770 (1975-09-01), Oka et al.
patent: 4005381 (1977-01-01), Klug
patent: 4426634 (1984-01-01), Okuya et al.

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