Ernie Ball volume pedal modification to make the taper like it was with the old Allen Bradley poti

Regular readers of this blog might know my first article about the different behaviour of Mark Knopfler’s Ernie Ball volume pedal compared to recent Ernie Ball models. In short: In the 80ies  a different poti was used that caused a completely different sweep curve than later ones (see diagram below). Knopfler’s pedal changes volume drastically over the first part of the pedal sweep range. This allows him to perform the […]