Re: Glass loss question

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

Original poster: "Gregory Hunter by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ghunter31014-at-yahoo-dot-com>

Hi Luc, All,

Saying "glass" is akin to saying "plastic"--these are
both really broad categories, each containing
thousands of different materials. Nobody claims that
all plastics are excellent pulse cap dielectrics--we
all know that some plastics are excellent, and some
are lousy. Likewise, there are so many different
formulas for glass, it is impossible to qualify a
blanket statement to the effect that all glass is a
lousy, lossy dielectric. The gent who gave his name to
this list was well aware of this, and selected only a
very particular brand of Champagne bottle for use in
his own saltwater cap banks. He made pretty good
sparks! I regularly pound my own beer bottle banks
with 2-7KVA, and the bottles never warm above room
temperature. No experienced list member would build an
MMC out of Mylar film caps, but I suspect many of us
are unwittingly doing something equally silly by using
the wrong kind of glass for our SWCs.

Best Regards,

Greg
http://hot-streamer-dot-com/greg

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Luc by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <ludev-at-videotron.ca>
> 
> Hi list,
> 
> I know glass is a lousy dielectric at tesla
> frequency, I know it
> from you and by experimentation. Could someone
> explain me why
> glass is so little heated by microwave. May be get
> disturb by an
> electric field between 2 conductor plate and be
> cross by
> electromagnetic field have not the same effect on
> dielectric ????
> or the loss are there only in a range of
> frequency????
> 
> Cheers,
> 
> Luc Benard
> 
> P.S. Hi Terry if my question is to much out of
> subject please
> just remove it, so many post this week.
> 
> 
> 



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