
Originally Posted by
Simon Barden
Your stacked pickup doesn't have inner and outer coils. The second coil on it isn't wrapped round the magnets, so you'll get no sound! It's only there to provide hum cancelling. So what you are likely to get in positions 2 and 4 is one single coil + single coil in parallel, and one bridge single coil + hum cancelling coil sound. Since SD have stopped doing individual pickup wiring diagrams (boo!) it's a lot harder to check how individual pickups are wired and the only STK-T1N pickup diagram I could find doesn't show any split, so there's no way of telling which is the coil with the magnets and which is the dummy coil. So you may end up swapping some of the connections around in order to get a modicum of hum cancelling in all positions.
Note that as the stacked pickup coils will have a different number of turns on each coil to the Li'l 59 coils, you won't get perfect hum cancelling in the mixed positions, but hum will be reduced.
The up side is that you'll get more variation with positions 2 and 4 than you thought.
But simply shielding the control and pickup cavities will get rid of most of your hum problems anyway.