Patent ID: 7626486

Claim:
A variable resistor comprising: a resistor element having a first end and a second end; a slider operable to slide on the resistor element, the slider having a sliding range which the slider slides on, a first end of the sliding range positioned at the first end of the resistor element and the second end of the sliding range positioned at the second end of the resistor element; a conductor element having a first end and a second end, the second end of the conductor element connected to the first end of the resistor element; a first adjustable resistor portion having a first end and a second end, the first end of the first adjustable resistor portion being connected to the first end of the conductor element, the first adjustable resistor portion being positioned outside of the sliding range of the slider; a first terminal connected to the second end of the first adjustable resistor portion; a second terminal electrically coupled to the second end of the resistor element; and a third terminal connected to the slider.