I'm sick and tired of single coil hum! Yeah, running my JAZZ SX basses with both pickups full on is great, but I'm wanting to actually USE mixed variations of the two pickups. Since we are talking SX basses here I'm not about to spring for a bunch of Nordies for them to fix the hum. So what to do? Well, In an Alembic thread there were quotes from Mica talking about dummy coils used in Alembics to solve the problem! That got me thinking. What about simply adding a dummy coil to the SXs? I can easily rout a place under the pickguard for it without worry about ruining looks. So I began to experiment. It's a bit tricky, if you haven't tried this because of the reverse wind between the two pickups that makes them humbuckers when both are on full. This means that the dummy coil has to be out of the circuit when both pickups are on and be in the circuit when you have neck or bridge dimed. And even worse, the dummy must reverse phase as you switch from neck to bridge. Not so simple! Well eventually I came up with wiring the coil between the two sliders on the vol/vol pots. This seems to almost do the job. To try it out (since I don't have a true dummy coil yet) I simply took an old jazz pickup to use as a dummy (keeping it away from the strings for now). Works great EXCEPT that the added parallel inductance (dummy is added in parallel) really kills the volume of the bridge pickup a lot. But the hum is definitely under control! further experimenting showed that if I could somehow use a SERIES connection for the dummy it would work much better. But I can't figure out how to wire one series dummy coil for two pickups! Does anyone have a wiring diagram for a single dummy coil with two pickups that is a series connection? Anyone have an alembic wiring diagram that might give me a hint. I'm SO close to this working now! Anyone?