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Nickthedentist · 18th Feb 2021, 5:53 pm

Hi Martin,

I think that little spinning wheel is meant to do the demagnetizing, but I've never understood how the alternating magnetism they produce is meant to die away to nothing; I've always thought that was a fundamental part of the degaussing process.

More elaborate cassette demagnetisers existed, which had an electonic oscillator powered by a couple of coin cells. I'd trust one of these more.

I have a cheap mains powered unit which you'd be welcome to use. It only takes a few seconds.

N.

18th Feb 2021, 5:53 pm	#2
Nickthedentist Dekatron Join Date: Jan 2005 Location: Oxford, UK. Posts: 17,841	Re: Head demagnetizer cassette Hi Martin, I think that little spinning wheel is meant to do the demagnetizing, but I've never understood how the alternating magnetism they produce is meant to die away to nothing; I've always thought that was a fundamental part of the degaussing process. More elaborate cassette demagnetisers existed, which had an electonic oscillator powered by a couple of coin cells. I'd trust one of these more. I have a cheap mains powered unit which you'd be welcome to use. It only takes a few seconds. N.