Potentiometers are variable resistors used to adjust voltage, resistance or control signals. A slide potentiometer provides linear manual control, while a dual-slide version controls two channels independently. Dual-gang potentiometers adjust two circuits together and are common in stereo audio systems. Multi-turn types provide precise adjustment over several rotations. Servo potentiometers provide position feedback in mechanical systems. Motorised slide potentiometers allow automatic or remote adjustment. Concentric types place two controls on one shaft. Digital potentiometers provide electronic adjustment without mechanical movement, while small trimmer potentiometers are widely used for circuit calibration and fine tuning.
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