CTS 'USA spec' Audio Taper Potentiometer.The CTS audio taper gives you smoother and more accurate response than with economy pots. Featuring a aluminium thread and split-shaft. Specs: - USA spec thread: 3/8" x 32. - 3/8" (9.5mm) diameter threaded collar.- 24 spline (fine) split shaft.- Includes 1 x nut, 1 x dress washer and 1 x lock washer.Dimensions:- The brass threaded collar is 9.5mm long.- Total length of the shaft to the top of the spline is 18mm.- Split shaft diameter : 6mm.- Pot casing diameter : 24mm. Which Ohm value should you choose?500k pots are the standard volume and tone controls for humbuckers, and 250k's are usually used for single-coil pickups. A 250k gives a slightly warmer tone than a 500K by sending more of the high-frequencies in the circuit to ground.
