One NEW ALPHA R-VS-500KA500Kohm audio tamper 24mm potentiometer volume control with built in 1A 0.25W 125VAC SPST on-off switch. 1/4in (Diameter) x 1in (Depth) + 1-3/8in(L) shaft (2-3/8in(L) including shaft). Replace a damaged volume control of a vintage radio, stereo, or audio amplifier.