(1) Alpha 250K push/pull control pot. Audio(logarithmic) taper, can be used for volume or tone control. DPDT - double-pole/double-throw. 6mm knurled split shaft. Includes nut and dress washer. Great for coil tap, phase, and series/parallel switching functions. Threaded bushing is 5/16" diameter x 3/8" long. Requires a minimum of 1" depth and 7/8" width to mount.