Potentiometers are used to control volume and tone. A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider.Check out our Tech Corder articles on pots, including Potentiometer Types.
Potentiometer - Precision Electronics, Audio, Slotted Shaft
Audio, 28mm potentiometer with slotted solid shaft, made by Precision Electronics. 10% tolerance. 2 watts.
Potentiometer - Alpha, Audio, ⅜" Bushing
Standard fit for most vintage American made tube amps.