Re: Home Made Variac

• To: tesla-at-pupman-dot-com
• Subject: Re: Home Made Variac
• From: Terry Fritz <twftesla-at-uswest-dot-net>
• Date: Sat, 12 Feb 2000 14:47:52 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme
• In-Reply-To: <38A4C677.3A95C60F-at-mail.idt-dot-net>
• References: <4.1.20000211115532.00a356c0-at-pop.dnvr.uswest-dot-net>

At 08:33 PM 02/11/2000 -0600, you wrote:

>
>
>Hmmmm...   im lost now ....   why wouldnt a carbon brush "short out" the
>several turns as a metallic "brush" would ???  arent both materials made
>to conduct electricity ???  I understand that carbon has some
>resistivity to it but is it that high that it would matter compared to
>say a metallic brush? 
>
>
>Scot D
>

Everything you ever wanted to know about carbon brushes and a lot more can
be found at the following link...  "Circulating currents" is of interest here.

http://www.sarp-eng-dot-com/brushes/nkf/index.htm

Cheers,

	Terry

• Re: Home Made Variac
• From: Ed Phillips <evp-at-pacbell-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)

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