Winding Demagnetizer Coil

I have added a link to a new article: Winding Demagnetizer Coil.  This describes the construction of a coil for use with my instant demagnetizer.  The secret to good performance is to use a lot of copper, which makes the unit heavy and a bit expensive.

Instant Demagnetizer

I have added a link to a new article  "Instant Demagnetizer." This describes a device I built that allows us to use a withdraw-object-slowly-from-the-coil type of demagnetizer to an instant one that generates a decaying oscillating magnetic field. Just put the object to be demagnetized in the coil and press the button. Done!