Metallor Alpha Pots Linear B250k Tone Potentiometer Electronics for Electric Guitar or Bass Larger B250k

A250K = Volume Audio B250K = Tone Linear Shaft Length: 15mm Shaft Diameter for knob postion: 6mm Shaft Diameter for nut mounting position: 8mm Diameter for pot bottom body: 24mm Washer and nut included. Cost effective replacements to noisy/scratchy tone pots, or use as an upgrade replacement for pots, a simple a quick job. High quality component with good smooth action. The difference between the A type and B type is the curve. Due to the way the curves work, the A type is normally used for the Volume and the B type is normally used for Tone, although some prefer B type for both Tone and Volume. Most Les Paul type guitars use the 500k ohm pot and most Strat type guitars use the 250k ohm pot, although it is strictly personal preference.