Re: Home Made Variac

• To: tesla-at-pupman-dot-com
• Subject: Re: Home Made Variac
• From: Bunnykiller <bigfoo39-at-idt-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Sat, 12 Feb 2000 09:28:39 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Tesla List wrote:
> 
> Original Poster: Ed Phillips <evp-at-pacbell-dot-net>
> 
> Tesla List wrote:
> >
> > Original Poster: "Kristian Ukkonen" <kukkonen-at-cc.hut.fi>
> >
> > Tesla List wrote:
> > > Original Poster: Ed Phillips <evp-at-pacbell-dot-net>
> > > Tesla List wrote:


  It looked like copper or at least a metal, and I
> would think it would short out several turns.  I suspect that anyone who
> would go to that much trouble would know enough to use the right brush
> material.
> 
> Ed



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

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