The Ernie Ball 6180 Volume Pedal Junior features a potentiometer that has a 250k ohm resistance suitable for the audio path of passive instruments.
Behind the jack area under the footplate is a micro taper switch which provides the user two distinct volume swell rates. The main pivot shaft is of centerless ground 1/2 inch diameter stainless steel, precision seated though nylon bushings at both ends. Tough long lasting Kevlar cable transmits pedal travel to the controls and is attached by stainless steel springs.
Ernie Ball 6180 Volume Pedal Junior Dimensions