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Author Topic: Re-Magnetizing Old Magnets ?  (Read 3000 times)

Offline neilep

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Re-Magnetizing Old Magnets ?
« on: 26/12/2007 20:30:03 »
Hi All,

Happy Whatever !!

Is it possible to re-magnetize old magnets ?...how is it done ?..can I do it here at home or do I need to take it to "Re-Magntetize Magnets R Us ?"

Thanks

Neil
xxxxxx


 

lyner

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Re-Magnetizing Old Magnets ?
« Reply #1 on: 26/12/2007 22:46:28 »
All you need is an enormously strong electromagnet and put your old magnet between its poles for a second or so.
Where I used to work they had one for magnetising loudspeaker magnets.
 

Offline syhprum

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Re-Magnetizing Old Magnets ?
« Reply #2 on: 27/12/2007 11:19:34 »
Not to reccomended but when I was a boy and had only the AC mains supply as a source of power (no silicon diodes in the thirties) I used to boost the strength of the magnets in 120 ohm GPO earpieces by flicking the mains supply across the coils until I got the right part of the cycle, a matter of trial and error.
 

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Re-Magnetizing Old Magnets ?
« Reply #2 on: 27/12/2007 11:19:34 »

 

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