Ok, I'm currently drawing up a motor assembly...both a field coil design, and a permanent magnet design...and one that uses both, field coil AND permanent magnet. The goal is to have a maximum strength field as realistically possible. Upon further research, Neodymium is rated at 1.05 in permeability, virtually zero conduction of magnet fields...but, Neodymium in magnet form is "magnetized" ??? Is this zero magnetic field conductivity dependent on N & S polarity? I was thinking of using four 6" by 0.5" neodymium magnets as part of the magnetic conduction pathway...& now, since the material doesn't conduct, I'm going to have to redesign....Can both the field coil & permanent magnet work together to increase the magnetic fields?
-----------------------------------------------------------------Rick........
-----------------------------------------------------------------Rick........
There is only one speaker I know of that has a permanent magnet and a field coil somehow put in the same structure and work together - is made by Voxativ - Voxativ AC-XHB PRODUCTS other than that I can't help you with anything...