Re: Neon Sign Transformers

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

Original poster: "Allanh by way of Terry Fritz <twftesla-at-qwest-dot-net>" <allanh-at-starband-dot-net>

Here's a tip for all new coilers that, like me, don't own a
large variac. Get a filiment transformer, 6.3 or 12.6 vac from your local
ham club or flea market and put its secondary in SERIES with the primary of
the NST. Make
sure it is adding not subtracting voltage. You will know by increased output
if you have it correctly wired. It is amazing how much difference 12 volts
makes. With my
coil and a 12kv NST, I almost doubled the length of sparks.

allan

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Friday, December 28, 2001 1:17 PM
Subject: RE: Neon Sign Transformers


>
> Original poster: "John H. Couture by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <couturejh-at-mgte-dot-com>
>
>
> Jim, Ed, All -
>
> All coilers should do the NST tests to learn more about Tesla coils.
>
> John Couture
>
> ---------------------------
>
>
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Thursday, December 27, 2001 5:38 PM
> To: tesla-at-pupman-dot-com
> Subject: Re: Neon Sign Transformers (was: spark length formula needed*)
>
>
> Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <jimlux-at-earthlink-dot-net>
>
> > As far as input and output terminal currents are concerned, they will
> > be in proportion to the turns ratio.  Since this is a series circuit
> > this must be true.  I believe any measurements which indicate that the
> > "secondary VA are greater than the primary VA" is due to defective
> > instrumentation.
>
> Excellent point.. I was thinking in terms of parallel L and C (as in power
> factor correction).. as you say, though, they are in series, so Ipri =
turns
> ratio * Isec
>
>
>
>
>
>