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RE: Solid versus stranded Wire (perf example)

Hi All,
I believe Brent Turner's (8"?) Secondary is wound with stranded wire,
the he uses for demonstrations. He gets good performance.
Brent (harnessed) sits on an insulator pedestal emitting 
~5.5' power and air sparks from his fingers, rings, poles, etc.
Regards, Dale

-----Original Message-----
From: Tesla List [mailto:tesla@pupman.com]
Sent: Wednesday, May 17, 2000 5:08 PM
To: tesla@pupman.com
Subject: Re: Solid versus stranded Wire

Original Poster: "Malcolm Watts" <malcolm.watts@wnp.ac.nz> 

On 17 May 00, at 4:54, Tesla List wrote:

> Original Poster: "G. G. Ford" <swimp@home.com> 
> 
> About at TC Freqs, Solid better than Stranded wire...
> 
> Is that because of the higher intrinsic inductance
> of smaller diameter wire, causing increased voltage
> drop?!

No - inductance is lossless. We are talking about losses and 
therefore resistance. All else being equal, stranded wire is 
measureably lossier than solid section, presumably due to skin 
effect artifacts. I have measured this in quite short lengths of wire.
Area for area, litz is better than both as it has a greater effective 
cross sectional area due to the insulation between strands. I am not 
saying that a resonator built with stranded wire will produce inferior 
results however - primary losses and output spark losses are 
dominant.

Regards, Malcolm
 
> Swimp@home.com
>  http://members.home.net/swimp/ - click Plasma
> for photos of a a hypersonic plasma jet...
> 
> Tesla List wrote:
> 
> > > Orig Post MrDirect@aol.com> ...would there be more or less
> > voltage drop using stranded wire or solid wire?
> >
> > If the copper is the same grade and the cross-sectional area of the
> > copper is the same there shouldn't be any difference. Things
> > change noticeably at TC type frequencies though. Solid is a better
> > performer.
> >
> > Regards, Malcolm
> >
> > > Regards Dave