[TCML] secondary windings burning?

[Bert Hickman]

mike osipowicz 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
> magnet wire coating, any ideas?
> 
> 
> 
> _________________________________________________________________ 
> With Windows Live, you can organize, edit, and share your photos. 
> http://www.windowslive.com/Desktop/PhotoGallery_______________________________________________
>  Tesla mailing list Tesla at www.pupman.com 
> http://www.pupman.com/mailman/listinfo/tesla
> 

Hi Mike,

It sounds like you may have a problem with the wire you used. Did you
accidentally overlap some portions of the winding? Did you use double
build (or "heavy build) wire? Was it brand new wire? Enamel insulation
on old wire can craze, or even flake off, and more modern insulation
systems can age and craze during winding. Since the secondary voltage
stress in a high performance coil can reach 2-3 kV per turn, using wire
with high quality insulation is essential.

Bert
-- 
***************************************************
We specialize in UNIQUE items! Coins shrunk by huge
magnetic fields, Lichtenberg Figures (our "Captured
Lightning") and out of print technical Books. Visit
Stoneridge Engineering at http://www.teslamania.com
***************************************************