An integral part of the Delta Tone system used on Fender American Series electric guitars, the "No-Load" potentiometer functions as a normal tone control from 1 to 9. At 10, however, the tone control is taken out of the circuit for increased output and overall tonal response. The 250K is usually associated with most single-coil pickups. 3/8" potentiometer shaft. Split shaft design. Works with push-on style knobs (no set screw). Mounting nut, washer, and .022mf 250V capacitor included.