The Tech Lab C-7506.A Rotary Switch 5930-01-081-4198 Precision Selector Rev F is a high-quality amplifier part designed for guitars and basses. Made by the reputable brand TECH LAB, this unit is a precision selector switch that provides accurate and reliable control over your amplifier settings. With a unit quantity of 1, this rotary switch is a must-have accessory for any musician looking to enhance their musical experience with a dependable and efficient amplifier component.