Hi guys, working on my RC - 4... looking at the wiring diagram, it shows both volume and neck pots at 500k. What I got were two marked as 250k and two marked as 'b504'.
Best way to find out which is which is to measure them with a multimeter, the marking, "b504", is just another way pots are marked with their value, the "b" means that it's a Linear Pot and the ""504" indicates the value which is read this way, Five, Zero, and Four more zeros, which gives 500,000, or 500k.
Last edited by DrNomis_44; 04-04-2016 at 02:54 AM.
You can check the value and taper with a multimeter if you have one.
Most people use 500k pots for both tone and volume with humbuckers. I tend to use audio (or log--same thing) for both tone and volume, but some people use linear for tone.
Dr. N is right about that "b" is probably linear. "A" is usually audio.
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