neon trannie loading?

• To: "'Tesla List'" <tesla-at-pupman-dot-com>
• Subject: neon trannie loading?
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Sun, 21 Jun 1998 23:59:17 -0500
• Approved: tesla-at-stic-dot-net

----------
From:  Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent:  Sunday, June 21, 1998 7:46 PM
To:  Tesla List
Subject:  Re: neon trannie loading?

Hi Jeff,

> From:  Jeff Corr [SMTP:corr-at-enid-dot-com]
> Sent:  Saturday, June 20, 1998 1:33 PM
> To:  tesla list
> Subject:  neon trannie loading?
> 
> I got a flyer here from Franceformer saying that
> neon transformers should be loaded to 75% to 85%
> of the designated max. current.  Ex : a 30ma neon 
> should be loaded to 24ma or 25ma.  If this was true,
> would this not explain why tesla coils kill neons
> fast?  (charging up the cap would be like a temporary
> short, pulling much more than 25ma, right?)
> 
> Could this also be why resisitors in series with the
> chokes help save neons?  Since adding resistors, I
> have not ever lost a neon, and was getting very good
> sparks.
> 
> Any thoughts?

Could be although I still reckon high voltage kickbacks are the major 
problem. Any NST matched to the TC primary cap for resonant charging 
will tax the current limitation of the windings. I can run coils 
quite happily for several minutes at a burst on NSTs.  Resistors will 
de-Q the charging circuit somewhat.

Malcolm

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