MULTIPURPOSE: Disc adjustable resistors are often used in musical instruments such as guitars to adjust the volume and tone. In guitars, potentiometers (adjustable resistors) change the resistance value by turning the knob to control the volume and tone. In addition, disc adjustable resistors are also widely used in other electronic devices that require precise adjustment of resistance values, or in situations where circuit currents are adjusted or circuit resistance values are changed, such as voltage and current regulation in industrial electrical equipment; voltage adjustment of AC and DC generators; speed regulation of small DC motors. For example, it can be used to adjust the brightness of lights, control the start and speed of motors, or be used as audio control in audio equipment.
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