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Technical and scientific discussion of amps, cables and other topics.

RE: So what's the deal with CD demagnetizers?

It would be SIMPLE to test.
You need a coil of wire, a DRILL (or dremel, better yet) and a DVM.
SPIN the CD at high speed. Hold the coil close to the CD and measure for MV. (Milivolts)
Experiment with orientation of coil. Voltage should be in some way proportional to rotation speed.

Done and done.

Too much is never enough

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