Originally Posted by back as a wolf
Thank you kindly for your quick reply! Is an SP3T switch the same as a DPDT on/on/on switch? Also, do you know what "order" the options would be on the switch relative to the fashion I intend on wiring for series/parallel on a Jazz? I'm going to be using the diagram on this page: http://www.lordgoogle.com/bass/s1_mod/
Does that seem about right? Also how would I avoid ground loops in this wiring setup (if possible)? Sorry for all the questions!
DPDT On/On/On switches are known as SP3T. The switching pattern is like a DPDT On/On switch for the first and third positions, but the second position is split so that one common goes to a NO terminal, and the other common goes to a NC terminal. They are called SP3T, because a SP3T pattern is obtained by externally jumpering two terminals. When left un-jumpered, the split middle position is of use to certain applications, such as series/single coil/parallel pickup coil switching.
For the diagram linked, the switching will be parallel in the "up" position, neck pickup only in the middle position, and series in the "down" position.
You cannot create a significant ground loop in a bass, because there is only one ground. If you are reading about ground loops somewhere, it's either nonsense, or intended for a different application than musical instruments.