Thanks for sharing. What coating is that? I've been using teflon coated wire silver coated copper like Bob Boyce recommends. I use the wire to wrap ferrite toroid coils bifilar. I do have a curiousity towards electric motors and generators/alternators though. With pulsing dc pwm the coils get hot but with a 60 hz inverter the coils stay cool. I would like to explore higher frequencies though.
Regards,
Andy