Originally Posted by P Town
Simple test: Use a magnetic compass to verify the polarity.
Even a cheap toy compass, (you could even make one if you are handy).
Know any boy scouts?
That won't work with just one magnet on a P bass coil because there are three onther magnets affecting the compass.
If you had one alnico rod, or a HB bar magnet, you could move it close to the rods in the coil one at a time to determine if one was a different polarity from the rest.