You should expect this to break something expensive.

Alan

I agree you are very possibly right.

However, I don't think an alternator would be bothered in that it
doesn't need any magnetism to start. Magnetoes might be another story
& would require an experiment. Obviously remove all radios as a
precaution too.

Do you have any feeling as to just how powerful a degausser this might
be? If it is too powerful, operating it more remotely would allow a
more general degaussing. How close to a 4130 steel tube would it have
to be to demagnetize for example? Another experiment......

At least the wire coil could be reused to wire a house or hangar etc
as long as it isn't allowed to get too hot. A ballast such as a
toaster/iron or other high current device is series could limit the
current and degaussing power.