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Re: Coil for rent?

Problem with this country (and a lot of others) is that almost nobody
understands creative engineering. It might not be all the way at 7 feet, but
based on my research, my design will be in that ballpark. You're talking about
stacked or rolled caps-my system is salt water based, with a LOT of bottles.
(I went out day before yesterday and got about forty beer bottles.) I realize
the Q will be low, but I've got many kVA going in (like 6), thanks to a
240V/30A circuit, so...

Tesla List wrote:

> Original Poster: "Robert W. Stephens" <rwstephens-at-headwaters-dot-com>
>
> Tesla List wrote:
> >
> > Original Poster: Doug Brunner <dabrunner-at-earthlink-dot-net>
> >
> > A good coil, built from scratch, would be about $200. I estimate about
> 7-foot
> > streamers, but the construction process is fairly involved (you would
> have to
> > wind a power transformer). You might be able to put a small one together
> > with a
> > used NST for around $100, with sparks around 2 feet.
>
> <Huge snip>
>
> Whoa Doug,
>
> Time for a reality check. Ya' been out shopping in the past 15 years?  A
> commercially built capacitor for a TC that can make 7 foot streamers
> alone is going to run you _at least_ $300+ US dollars if you get it
> directly from the factory!  If you make it yourself the materials alone
> will cost you what you just budgeted ($200), for the entire coil system!
>
> On the other hand, I agree with you however that the NST powered coil
> you mentioned could be built for the budget stated ($100), if you got
> the NST the proper way (don't buy it new from a distributor) and
> employed salt water or otherwise cheap home-made capacitors, and made no
> charges on your R&D, parts procurement (running around burning
> gasoline), and construction labor.
>
> There's an enormous(!) expenditure distance involving materials cost and
> acceptable design parameters in Tesla coiling between achieving two foot
> streamers and seven footers.
>
> Robert W. Stephens
> Lindsay Scientific Co.
> Commercial Tesla coil supplier
> Phone and autoFax 1-519-925-1771



--
           --Doug Brunner
                <dabrunner-at-earthlink-dot-net>