Re: transformers

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

Original poster: "Bert Hickman by way of Terry Fritz <twftesla-at-uswest-dot-net>" <bert.hickman-at-aquila-dot-net>

Godfrey and all,

These are not usually used for neon lighting - instead, these are "cold
cathode lighting transformers", used for specialized (cove, indirect and
architectural) lighting. They most often come in voltages of 5,000, 7,500,
9,000, 12,000, and 15,000 volts at 120 MA. However, these are much rarer
than NST's, and even neon equipment distributors deal with these only very
infrequently. BTW, in the last 6 years of coiling, I've yet to come across
one...

Best regards,

-- Bert --
-- 
Bert Hickman
Stoneridge Engineering
Email:    bert.hickman-at-aquila-dot-net
Web Site: http://www.teslamania-dot-com

Tesla list wrote:
> 
> Original poster: "Loudner, Godfrey by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <gloudner-at-SINTE.EDU>
> 
> Hi Howard
> 
> I have never come across any 12KV, 120MA NSTs; they sound very interesting.
> In the past, one could get hold of 15KV, 120MA NSTs, but they are difficult
> to locate these days. The bombarder transformer can get up to 25KVA, 20KV,
> and they cost big money. There is no sense in getting a bombarder, because a
> pole pig is a better transformer and is less expensive.
> 
> Godfrey Loudner
> 
> > -----Original Message-----
> > From: Tesla list [SMTP:tesla-at-pupman-dot-com]
> > Sent: Monday, May 07, 2001 5:52 PM
> > To:   tesla-at-pupman-dot-com
> > Subject:      transformers
> >
> > Original poster: "howard keiper by way of Terry Fritz
> > <twftesla-at-uswest-dot-net>" <keip-at-pacbell-dot-net>
> >
> > All..
> > I see a lot of discussion about using NSTs, with or without shunts. Has
> > anyone (besides me) used the 12 KV, 120ma xfmrs?  They're current
> > limited as well as their little siblings. They're available through many
> > electrical sign supply houses...new and used.
> > Another matter is the "Bombarder" transformer. These are different
> > brutes alltogether. They're definitely not current limited in any way,
> > and are available in 7.5, 10, & 12 KVA -at- 15KV. What makes them
> > attractive is that they're often designed to "open Frame" technology;
> > that is, encapsulated, but not enclosed. Check neon sign supply folks
> > for these too.
> > hk
> >
> >