Re: neon rewind

To: tesla-at-pupman-dot-com
Subject: Re: neon rewind
From: Tesla List <mod1-at-pupman-dot-com>
Date: Sun, 28 Sep 1997 08:00:35 -0600 (MDT)
Approved: mod1-at-poodle.pupman-dot-com

---------- Forwarded message ----------
Date: Sat, 27 Sep 1997 10:44:41 -0700
From: Jim Lux <jimlux-at-earthlink-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: neon rewind 

> Date: Fri, 26 Sep 1997 22:24:45 -0400 (EDT)
> From: KRAMPF-at-aol-dot-com
> To: tesla-at-pupman-dot-com
> Subject: Re: neon rewind

> Don't do it!  At least until you are sure you have to.  I have depotted a
lot
> of neons and have never found one that needed to be rewound.  They go out
> because the high voltage arcs through the tar and carbonizes a trail,
> shorting the trans.  If you remove the tar and reinsulate the secondaries
> with corona dope and mica plates, you will have a perfectly good trans
that
> will pull a lot more current and give you some wonderful sparks.

Since the current is limited by the leakage inductance, why will you be
able to get more current, unless you have series C to compensate? 

The whole point of neon transformers is that you can short the output and
they are current limited inherently..  Sure, you could increase the primary
voltage and get more current out for the same effective series X, but you
will run into core saturation pretty quick, since the mfr isn't going to
put any more iron in the core than absolutely necessary for such a price
sensitive application.

Now, if you remove the magnetic shunts, that is another story, because you
have eliminated the equivalent series L.