Illuminated variable resistor

Details Illuminated variable resistor Illuminated variable resistor

1983-06-17

1985-09-17

Albritton, C. L.

Electrical resistors

Mechanically variable

With resistor actuator position indicator

338119, 338134, 338163, 338184, H01C 1000

Patent

active

045423660

ABSTRACT:
A rotary type illuminated variable resistor wherein a light source is disposed in a case, and first and second optical guide members for guiding light from the light source are respectively disposed in a hollow shaft and a hollow knob. When the knob is rotated, the second optical guide member is also rotated, so that the rotational position of a variable resistance portion mounted on the hollow shaft can be indicated on the end face of the knob by the light.

REFERENCES:
patent: 3848219 (1974-11-01), Oka

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