3 Pickup Les Paul Volume

[Trash Can Luthier]

I've been working on a project in which I wired up a 3 Pick-up Les Paul with 3 volume controls and one master tone. The bridge and neck pickups are standard HBs, and the middle is a Phat Cat P90.. 3 way control works as normal LP, with the middle pickup being hot all the time. So in the middle position on the three-way switch, all pickups are on..

SO here's the problem.. The volume controls on the neck and bridge work normally when the middle p/u volume is all the way down. but when the middle volume is added, the volumes on the neck and bridge have a bit of a stepped effect, where there is little change over most of the span, then there is a sudden big change close to the 3/4 volume area.. its almost on/off sensitivity in the 3/4 volume area.. additionally if they (all active volumes) are at 3/4 or below, the interactions are relatively balanced. but if one of the two is at full volume, the other is kind of sudden change around the 3/4 spot. Additional info, all pots are 500K Audio taper.

Do I need a different pot on the Phat Cat?, Linear vs audio taper? adda resistor to make the Ohms more similar between the P-90 and the HBs?...

Bring forth the wisdom oh gods of the guitar forums...

 

[DavidRavenMoon]

Re: 3 Pickup Les Paul Volume

Look up the way the volume controls are wired up on a Jazz Bass. That way you can turn a volume down without muting the output.

You just swap the wiper and the outer lug.

I wired my two pickup Standard that way, with a master tone and Varitone midrange notch filter.


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[Trash Can Luthier]

Re: 3 Pickup Les Paul Volume

Thanks, I'll give that a try