This is not rocket science.. A 120 volt solenoid can be used as a
degausser, as can the ones used for TV's... Even small ac motors will
have a pretty good induction field - esp. if you can open the metal
case up... The way to test is to magnetize a screw driver and then
use your degausser to demagnetize it... If it will do that it will do
the airframe...

Start with it right against the metal and run it back and forth across
the surface gradually increasing the distance away from the metal
until you are at least a foot away...

denny