Re: Potential Transformers Avaliable

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

Original poster: "Terry Blake by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tb3-at-att-dot-net>

Hi Dave,

The potential transformer is more hardy than the NST.  An RC filter with
safety gaps still seems like worthwhile protection.  After all, these things
were not designed to be used with Tesla Coils.  I agree that safety gaps
should be the minimum required protection.  They are simple and effective.

The output power at 14,400 KV and 180 mA is equivalent to 3 15/60 NSTs or 6
15/30 NSTs.  The output power is 50% more than 120 mA.  But that is not the
whole story.  I am not sure why, but when I run my coil from the PT, it
looks better.  Bigger, hotter sparks, than I get from the same power of
NSTs.

Terry Blake
Coiling in Chicago.
http://www.tb3-dot-com/

PS: Your coils are very impressive.  Excellent workmanship I must say.
www.100-aker-wood-dot-org

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, November 03, 2002 7:30 PM
Subject: RE: Potential Transformers Avaliable


 > Original poster: "Dave Kyle by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<dave-at-kyleusa-dot-com>
 >
 > Does a potential transformer require protection like a neon transformer?
 > Would it be reasonable to use just a safety gap?
 >
 > How much difference would one except in output with this PT verses a
 > bank of four 15KV at 30ma (120 ma total) neon transformers?
 >
 > I am not ready for a pig but this seems a good compromise.
 >
 > Dave
 >
 > =========================================
 > Dave Kyle
 > Austin, TX USA
 > Email: dave-at-kyleusa-dot-com
 >
 >
 > -----Original Message-----
 > From: Tesla list [mailto:tesla-at-pupman-dot-com]
 > Sent: Wednesday, October 30, 2002 10:49 PM
 > To: tesla-at-pupman-dot-com
 > Subject: Potential Transformers Avaliable
 >
 > Original poster: "Terry Blake by way of Terry Fritz
 > <twftesla-at-qwest-dot-net>" <tb3-at-att-dot-net>
 >
 > Hi all,
 >
 > At a recent Teslathon, I showed a coil powered by a potential
 > transformer,
 > ballasted by a 500 foot roll of 12 gauge wire.  The transformer looks
 > like a
 > car battery and is about 95 pounds.  It is a 1.5 KVA, and I typically
 > run it
 > at about 20 A and 120 volts.  At that input, the output is 14,400V and
 > 175
 > mA.  It packs a punch, is compact, and not too heavy.
 >
 > http://www.tb3-dot-com/tesla/mrun/index.html
 >
 > Anyway, there is one for sale now on eBay for a "Buy it now" price of
 > $280.
 >
 > http://cgi.ebay-dot-com/ws/eBayISAPI.dll?ViewItem&item=1781256637&rd=1
 >
 > If you can pay the price, it is a nice tranny.  But, if you don't like
 > that
 > price, the seller has at least 5 more that he would part with for $200
 > (plus
 > shipping).
 >
 > All you have to do is contact him directly and tell him I (Terry Blake)
 > sent
 > you for the $200 PT deal.
 >
 > He is Matt Stiger, and his email is;
 >
 > mwstiger-at-prodigy-dot-net
 >
 > Or contact him through the eBay page if you like.
 >
 > Cheers.
 >
 > Terry Blake
 > Coiling in Chicago.
 >
 >