degaussing for compass

opposite polarity, switch direction manually. Use less
current (amps) with each cycle. There are machines that do
this automatically, but you can rig up something to do it
from odd bits and pieces.



"nrp" wrote in message
ups.com...
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| (2) DC method. Place the part in the
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| same relative position as when magnetized and
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| apply reversing DC current.
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| What's a reversing DC current?
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