[TCML] Secondary Coil Capacitating

[jimlux]

Brandon Hendershot wrote:
> Hi All,
> I was running my coil tonight, something happened underneath the coil I wanted to check out, so I went to move the secondary, and it was shocked me. Nothing brutal, just a carpet spark, but it had been off for several minutes. Why (How?) is it storing electricity? Is it between the topload and counterpoise?
> 

this is a pretty common phenomenon.  I don't know that there's a 
provably correct explanation of why it happens, but one guess is that 
charge accumulates on the surface of the secondary (which is a nice 
insulator).  The question would be that since the sparks and coil are 
AC, why would one polarity preferentially accumulate.  However, it's 
well known that corona discharges have a polarity preference, so there 
are mechanisms that could account for it.


If you hunt through the archives, (I'm not sure what you'd use as a 
search string) you'll find discussions of it.  Probably 3 or 4 years ago 
at least.


Thanks guys,
> Brandon_______________________________________________
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