[TCML] secondary windings burning?
wavetuner at gmail.com
Tue Aug 18 19:19:20 MDT 2009
Ok, I'll bit on this one. I just received a half roll of 21 AWG from eBay.
When I was 16, I used to work in a wire factory. .5" solid copper was drawn
though die machines sometimes to human hair size or less.
Yawn... my job was to cut the remnants off the rolls to be recycled via a
It was very evident that wire wound on a spool was extremely symmetrical in
Buying wire on eBay is a crap shoot that can turn up snake eyes. Using this
analogy, my last buy was the aforementioned symmetrical wind with the label
I have 18 pounds of other wire from the crap shoot that is only good enough
for my scrap bin - no label- amateur wind- insulation burns or scratches
right off. Jewelry wire I suppose.
We put a lot of work in our coils. The secondary is a critical assembly.
From: tesla-bounces at pupman.com [mailto:tesla-bounces at pupman.com] On Behalf
Of Lau, Gary
Sent: Tuesday, August 18, 2009 5:10 PM
To: Tesla Coil Mailing List
Subject: RE: [TCML] secondary windings burning?
Do you have personal experience with eBay wire, or reliable first-hand
accounts, to back up your claim that wire from eBay is usually (more often
than not?) factory seconds? Bear in mind that buying through eBay means
buying directly from any number of unrelated vendors, so you're using a
pretty broad brush with that assertion.
Given that eBay is such a convenient and widely used resource, I don't like
to see fear, uncertainty, and doubt spread without good reason.
Regards, Gary Lau
> -----Original Message-----
> From: tesla-bounces at pupman.com [mailto:tesla-bounces at pupman.com] On
> Behalf Of DC Cox
> Sent: Tuesday, August 18, 2009 3:40 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] secondary windings burning?
> What did you seal the sec coil with?
> Did you use new magnet wire or something off E-Bay (usually factory
> Dr. Resonance
> On Tue, Aug 18, 2009 at 12:30 PM, mike osipowicz
> <yosip1115 at hotmail.com>wrote:
> > hello, I just finished my coil, but my secondary windings are glowing in
> > some small parts, when its off it leaves little black spots on the
> > wire coating, any ideas?
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