Question about Seymour Duncan ShPg1 Pearly Gates Pickup Bridge

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Tone changes in pearly gates pick up

Pick up loses bottom end and gains upper midrange just before volume pot is wide open and when it is wide open. The full volume sound is skinny and yet in turning it down, just a bit, it regains the low end and maybe too much muddy mid. It's weird. Both of my pickups are pearly gates bridge pick ups and they are in my 78 gibson sg. Both of my tone controls on my guitar are disconnected. The tone problem occurred before and after the tone controls were disconnected and seemed to come on slowly over time. I have tried my guitar with other amps and the same effect occurs. *note...the tone problem is in Both pickups. This is a weird one. Thanks very much. bill@billdurst.com

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What you describe sounds like pickups fighting against each other meaning, does this occur when using pickups individually or together? This is normal when using more than one pickup together, if it occurs in single mode, something is wired wrong. Another thing is, If using single, are you splitting coils? Individual coils wired wrong can do this, a bad pickup selector switch can also. A loose wire or fiber touching the tone pot capacitor or ground could also. A dead coil on a humbucker can as well. I'm guessing that you are using these in combo meaning a possible pickup selector switch may not be switching properly. The player's level of experience is also in my mind since, all of my guitars do the exact same ONLY when I use more than one pickup. I hardly ever use more than one at a time unless I'm playing a strat.

Posted on Mar 29, 2014

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Tone knob and switch info


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http://sthac.free.fr/pictures/sthac-HSH-wiring.jpg

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