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Message: <blockquote data-quote="maylar" data-source="post: 8286535" data-attributes="member: 541144">A potentiometer is a variable resistor. The center terminal is the moveable connection (variable), and the 2 outside terminals are either end. If you take an ohmmeter across the 2 end terminals you can measure the value of the pot. If the number B203 has any reference to its value, it probably means 20,000 ohms (20K) but measure it to be sure. Every manufacturer is different on the wiring, so you'll have to trace from the pot wires to the RJ11 connector and duplicate the connections. Since the amp is mono, you're probably only dealing with a single section pot and 3 connections total.Mouser, Digikey, or Parts Express will have pots with different mounting options. I'm sure that even a 1/4 watt size will be adequate.</blockquote>

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