Re: Filtering on Neons

• To: tesla-at-grendel.objinc-dot-com
• Subject: Re: Filtering on Neons
• From: David Huffman <huffman-at-d0tokensun.fnal.gov>
• Date: Tue, 06 Feb 1996 10:51:57 -0600
• >Received: from linac.fnal.gov (linac.fnal.gov [131.225.18.176]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with SMTP id JAA01333 for <tesla-at-grendel.objinc-dot-com>; Tue, 6 Feb 1996 09:52:58 -0700
• Cc: huffman-at-d0tokensun.fnal.gov

tesla-at-grendel.objinc-dot-com wrote:
> 
> >From ed-at-alumni.caltech.edu Tue Feb  6 01:12 MST 1996
> >Received: from tybalt.caltech.edu (root-at-tybalt.caltech.edu [131.215.139.100]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with ESMTP id UAA02773 for <tesla-at-grendel.obji
> Date: Mon, 5 Feb 1996 19:43:39 -0800
> From: ed-at-alumni.caltech.edu (Edward V. Phillips)
> To: tesla-at-grendel.objinc-dot-com
> Subject: Re: Filtering on Neons
> 
> Ferrite Beads:
>         These add so little inductance that they are essentially
> worthless for protecting the transformers.  You need millihenries
> of inductance, which implies many turns on big cores.  Also, you
> need enough core area to avoid saturation due to excessive flux
> density in the core.
> Ed Phillips

If you get enough inductance to be useful, doesn't it need to be able to handle very large 
RF voltages that will develop across it?  I would think construction techniques are 
important when making these devices.
Just my thoughts, 
Dave Huffman

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