RE: Neon Sign Transformers (was: spark length formula needed*)

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

Original poster: "John H. Couture by way of Terry Fritz <twftesla-at-qwest-dot-net>" <couturejh-at-mgte-dot-com>


Marc -

The NST is a strange beast. I have done numerous tests of NSTs with varying
RC circuits. In some test the volt amps input was LESS than the volt amps
output. An apparent violation of the laws of physics. Every coiler should
make these tests and study what is happening. Tesla coils are also strange
beasts like NSTs.

John Couture

------------------------------

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Saturday, December 22, 2001 9:01 AM
To: tesla-at-pupman-dot-com
Subject: Re: spark length formula needed*


Original poster: "Metlicka Marc by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<mystuffs-at-orwell-dot-net>

John,
Maybe what you are calling a "hanging tale" might be more of an accuracy
then you think? Even trannys of the same wattage would, or maybe, have a
wattage\time relation?
so for a bank of nst's compared to the pole pigs, the pig will just
charge faster?
Just idle thinking, but??????
Also, any config i throw in for my pt's, i always use the pole pig. so
this most likely accounts for the accuracy's. Maybe nst bank users
"should be" using the pig option for a closer spark length output?

Marc

Tesla list wrote:
>
> Original poster: "John H. Couture by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <couturejh-at-mgte-dot-com>
>
> Marc -
>
> Thank you for your interest in the JHCTES program. Although this program
has
> taken several years to develop based on real world coils the program still
> requires improvement. One example is the spark length parameter. The
program
> shows that the spark length increases as the power source voltage (NST
> secondary) increases. This voltage is also dependent on the voltage
> regulation of the source, and thereby hangs a tale.
>
> The voltage regulation differs for NST, pole transformers, bombarders,
etc.
> Because of this variation the spark length for a NST at a certain apparent
> wattage will be less than for a pole transformer, etc, of the same
wattage.
> The JHCTES program does not take voltage regulation into consideration and
I
> have never heard of any spark length equation that does. Some day when
> enough test info becomes available, this voltage regulation parameter can
be
> added to equations and computer programs.
>
> Voltage regulation for a certain power source can change with the type of
> load applied. This may be the reason that some coilers have found a jump
in
> streamer behavior when the power changes because Tesla coil operation is a
> varying load type of operation.
>
> John Couture
>
> --------------------------
>
>