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Old 13th Aug 2017, 2:23 pm   #11
Radio Wrangler
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Join Date: Mar 2012
Location: Fife, Scotland, UK.
Posts: 22,874
Default Re: Toroidal choke failure

A lot of ferrite cores are 'tumbled' like in a gemstone polisher to blunt edges.

These are likely metal powder ones, though.

David
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