The Philco 45-5025 Shaft-Saver Volume Control is a replacement potentiometer component manufactured for vintage electronic repair and radio restoration. Rated at 100K ohms (100,000 ohms) with a Taper C curve, this unit includes an attached switch. Designed with a 1/4 inch round inner diameter shaft, it includes a matching shaft adapter designed to fit standard 1/4 inch round shafts. The control base measures 3/16 inches from the threaded set with a 1-inch shaft length, providing reliable resistance performance and accurate knob installation.