Hi All, I've posted this on my regular guitar building forums with no luck then I heard this was the place for this sort of thing ;D
my current build is a Jazzmaster copy :maple neck, Rosewood FB, sapele body, recessed TOM, LP style pearl block inlays, CBS headstock. black beauty colour scheme: black finish and pickguard, all gold hardware and pups.
I wanted to try controls like Troy Lan Leeuwen's yamaha (anyone played one?) which is:
3xp90 3xvol master tone 1st toggle: bridge/bridge+neck/neck 2nd toggle:middle off/add middle/middle pup only(turns other pups off)
except a master vol instead of 3 individuals. I also have some DPDT on/on slide switches which im going to put in to add to the jazzmaster look. ATM I plan on one turning the neck on/off for Morello style stuttering (with the1st toggle, not the slide) and the other for mid phase reversal but I'm sure there would be better uses for these?
BY my calculation a normal LP toggle wont do the 2nd toggles function and i need one of these 3 pup LP switches:
hopefully this is how i want to wire it? (1st toggles in the centre, 2nd toggles on left, other switches are slide switches.)
Also, the pup i planned on using in the middle is 2core+shield so the phase reversal should work fine, which brings me to my next dilemma:
I have a Kent Armstong alnico vintage (around 8k) and a matched pair of SD's SP90-2's (ceramic, around 11k and 14k)I brought on a whim off Ebay before the 3pup idea came along.
i plan on putting the KA in the middle as it has the 2c+shield and then the matched pair would be in the most used positions, but the output mismatching will probably mean the mid will be too quiet on its own
Ha! of course ChrisK ;D I was working under the assumption I needed to ground the unused group/pup which only the 3 pup LP toggle did. not sure why I thought that, grounding unused pups has never crossed my mind before
newey: I thought about having just the N/B+N/B toggle and a Vol to blend in the middle pup but I rely too much on a single master vol, where a single twist will clean up my tone or give silence.
The DPDT for 'neck off' was a spur of the moment 'what can this switch do for me', in hindsight I cant see myself using it, but after looking around for other wiring options the wealth of options has left me stumped any suggestions?
There ya go. The 'A's connect together. For this to work properly, the lower switch must be in 'middle' or 'both'. When 'Neck/Bridge group only' is selected, there will be no output in series mode. Parallel mode works as before, series mode puts the middle in series with whatever is selected out of neck and bridge. In the 'both' position, you get the interesting (Neck+Bridge)xMiddle
Here's a slightly improved version that eliminates the dead spot of the other one. Here, the middle pickup is always on in series mode (the lower switch has no effect) with the other switch selecting neck/neck+bridge/bridge in series with it. Parallel mode is as before.