This 20K potentiometer from the Taiwan Alpha RV16AF series has a Ø16mm metal case with a Ø6 x 15mm long shaft. The pot has a W taper which is a compound taper that starts off as a reverse logarithmic taper before going to a linear taper and then a logarithmic taper. The quality and features of this potentiometer make it ideal for use in audio tone and equaliser applications. * Operating voltage max. 200V AC * Compound W taper * Vertical mounting * Ideal for high-end audio applications * Ø16mm metal case * Milled shaft * 300° Rotation stop * Supplied with nut and washer * Taiwan Alpha RV16AF-41-15R1-W20K-3 Operating voltage max.150V AC Insulation resistance>100MΩ Dielectric strength500V AC TerminalsVertical Rotation angle300° Case diameter16mm Shaft length15mm Shaft diameter6.35mm