hey guys, i was wondering, can i use a 3 way pickup selector such as on a les paul for a HxSxH pickup configuration? or would i need to use a 5 way pickup selector as such on a fender?
Yeah, you could do it, just wire each pickup to it's own point on the connector. It does however mean that you won't be able to blend pickup sounds and your single coil will come out a fair bit softer than the buckers.
will a three way selector work with a three humbucker setup?
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yes, just look at the LP custom black beauty, that has 3 H/b's and a 3 way switch.

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