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Posted (edited)

[url="http://i174.photobucket.com/albums/w99/243545344/WP_20130515_003.jpg"]http://i174.photobuc...0130515_003.jpg[/url]

[url="http://i174.photobucket.com/albums/w99/243545344/047a2fc5-7381-4e2e-9d82-43ee2bee7fff.jpg"]http://i174.photobuc...3ee2bee7fff.jpg[/url]


Looking for £50 ono + postage.

Thanks

Edited by tom123
Posted

Apart from the fact that these are stacked coils, I would guess it's the use of samarium-cobalt magnets. Similar magnetic strength to neodymium, but better resistance to demagnetisation.

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