RE: curious ballast behavior (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Thu, 11 Oct 2007 22:30:35 -0400
From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: RE: curious ballast behavior (fwd)


John,
     It was a 120 BPS sync rotary, with a series quenching gap, and a small blower fan.  I did a few long runs that night, and the contacts in the quenching gap (steel acorn nuts) burned all the way through to the brass bolts underneath (this was with a ballast), so I could see that it might be power arcing, I was not watching the gap during the tests, my cousin was, and he wouldn't know what to look for.

Scott Bogard.

> Date: Thu, 11 Oct 2007 16:31:25 -0600
> From: tesla@xxxxxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: Re: curious ballast behavior (fwd)
> 
> 
> ---------- Forwarded message ----------
> Date: Thu, 11 Oct 2007 10:01:08 -0400
> From: futuret@xxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: Re: curious ballast behavior (fwd)
> 
> 
> Scott,
> 
> 
> 
> If you're using a static gap it may be power arcing due to
> 
> the higher current after you removed the ballast.
> 
> Even a rotary can sort of power arc and trail
> 
> the spark around the electrode path.
> 
> 
> 
> John
> 
> ---
> 
> 
> -----Original Message-----
> From: Tesla list <tesla@xxxxxxxxxx>
> To: tesla@xxxxxxxxxx
> Sent: Wed, 10 Oct 2007 9:46 pm
> Subject: curious ballast behavior (fwd)
> 
> 
> 
> 
> 
> ---------- Forwarded message ----------
> Date: Wed, 10 Oct 2007 18:44:15 -0400
> From: Scott Bogard <teslas-intern@xxxxxxxxxxx>
> To: tesla@xxxxxxxxxx
> Subject: curious ballast behavior
> 
> 
> Hey all,
>      A few weeks ago I did an experiment, I removed the Ballast form my
> 4-MOT coil to see if my sparks would get bigger (not a good idea for my
> setup, but a few couple second runs will not hurt anything).  They did
> not, the arcs grew incredibly tiny, a few inches long.  I re-tuned, and
> tuned, and tried every primary configuration available, but It never
> worked.  Thinking I may have fried a MOT with my rash behavior, I put it
> back on and tried again, the coil lit up like a champ.  I just thought
> this was curious and felt like sharing it with the group, especially in
> light of the "Bogus Ballast" thread a while back.  I know some people run
> their MOTs without a ballast, but I guess I cannot without some other
> design changes!
> 
> Scott Bogard.
> 
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