(Fwd) Re: Secondary Coil design *Correction*

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Malcolm Watts by way of Terry Fritz <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>

Dear all,
           I said:

On 16 Nov 2001, at 8:05, "Tesla list" <tesla-at-pupman.co wrote:

> Hi Gregory,
> 
> On 15 Nov 2001, at 11:54, Tesla list wrote:
> 
> > Original poster: "G by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<bog-at-cinci.rr-dot-com>
> > 
> > Hello List,
> > 
> > I have noticed a failure pattern in all of my secondary coils and am 
> > searching for a solution. Each one has had a failure within the 
> > bottom 25 turns (shorts between turns).During the most recent 
> > failure, I was watching the operation very carefully in a dark room 
> > and I am sure there wasn't any arc struck between the secondary and 
> > the primary, or even corona.
> 
> The highest voltage gradient per turn occurs in the bottom portion of 
> the coil. Polythermaleze wire should fail in that fashion so it 
> suggests to me that the wire insulation is not the best for this 
> application. 

The "should" in the second sentence should of course be "should not"!

My apologies all.

Regards,
Malcolm
<snip>


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