Re: Off-axis primary inductance

• To: tesla-at-pupman-dot-com
• Subject: Re: Off-axis primary inductance
• From: Hollmike-at-aol-dot-com (by way of "Terry Fritz (moderator)" <twf-at-verinet-dot-com>)
• Date: Thu, 03 Dec 1998 16:53:26 -0700
• Approved: twf-at-verinet-dot-com

In a message dated 12/3/98 12:42:32 AM Mountain Standard Time,
tesla-at-pupman-dot-com writes:

>  I have constructed two "cores" , both heavily gapped 
>  internally by recovering 3C8x ferrite cores from old computer SMPS, 
>  smashing them to bits and stuffing the chips into PVC and acrylic 
>  piping. 

Malcolm,
    I like the idea.   Do you think magnetite would work in place of the
ferrite?  I don't have much in the way of ferrite cores available, but could
get pounds of magnetite.   I could mix it with something like sand and even
grind it to powder if necessary.  I guess my question is whether this would be
bad at TC frequencies.  I thought about using this for chokes etc, but have
never tried it.  I have not heard of anyone trying this, so I expect that
there is something that makes this a poor choice.
Mike

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