Here's a diagram for Strat with a 3-way blade switch or les paul toggle switch which I believe is correct. Sometimes when I work on schemes too much I keep missing the obvious errors. A friend requested this but I don't plan to build it. Any help looking this over would be appreciated .
I found an error on the drawing, the last set of tones should be "Volume down / Neck down / Bridge Up"
Last Edit: Aug 19, 2014 16:37:38 GMT -5 by santellan
This is a variation on the "binary tree" switching. I've wired one such scheme, but looking at the diagrams for these things still makes my head spin. . So, take this with a grain of salt, and maybe await another opinion to be sure.
But my take is that I think the diagram works as you intend, assuming the correction you note to the "truth table". However, a couple of points:
First, there are 6 possible iterations of the 3 P/P switches, and your table (after your correction) omits one, namely "V down, N up, Br up". It looks to me that, in that configuration, you will get both pickups split to the N coils, which will of course not be hum-cancelling. Not a deal-killer, certainly, but something to be aware of. I don't see any way around that given the rest of the scheme.
Also, when the Bridge pup is split to the south coil (Vol up, Br down), the N coil is left hanging from hot. Again, not a deal-breaker, and no way around that that I can see. We've long debated whether hanging coils contribute to noise. It's possible that there may be some effect, but it may make no real world difference.
Again, though, let's get another pair of eyes involved.