Re: Why is the coil being weird???? (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 12 Nov 2007 01:58:31 +0000
From: jhowson4@xxxxxxxxxxx
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Why is the coil being weird???? (fwd)

Currently the spark gap is 2 bolts in a tube that is connected to blowing
end of a shopvac.  There is considerable airflow through the gap.  Maybe I
should put heat sinks on the exterior of the tube.

many thanks, 
Jay Howson


 -------------- Original message ----------------------
From: "Tesla list" <tesla@xxxxxxxxxx>
> 
> ---------- Forwarded message ----------
> Date: Thu, 08 Nov 2007 13:11:39 -0500
> From: futuret@xxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: Re: Why is the coil being weird???? (fwd)
> 
> 
> Jay,
> 
> 
> 
> The spark gap is mostly overheating during operation.
> 
> Try letting a fan blow across the gap to keep it cool.
> 
> It should help a lot.? A better spark gap may be helpful
> 
> depending on the present design.
> 
> 
> 
> John
> 
> 
> 
> 
> 
> 
> 
> 
> -----Original Message-----
> From: Tesla list <tesla@xxxxxxxxxx>
> To: tesla@xxxxxxxxxx
> Sent: Thu, 8 Nov 2007 9:46 am
> Subject: Why is the coil being weird???? (fwd)
> 
> 
> 
> 
> ---------- Forwarded message ----------
> Date: Wed, 07 Nov 2007 21:49:41 +0000
> From: jhowson4@xxxxxxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: Why is the coil being weird????
> 
> I have been tinkering with my coil for a while now and it has been acting weird 
> since the day I built it.  but it is just starting to get on my nerves.
> 
> So basically
> When I run my coil at first if is good.  producing 30" sparks lots of noise etc.  
> 
> But after about 5-6 seconds it just craps out.  The spark gap stops making the 
> normal loud spark gap sounds and it starts to make a really quick softer sound.   
> Like the one the tv makes when there is no channel and just static.  At the same 
> time the sparks length drops to about 4".   
> I turn it off.  let it chill for like 30 seconds and then it does the same 
> thing.   If I turn it off and don't let it chill it just does it quicker. 
> Very annoying.  
> I am currently using 5 obits in parallel and 2    .005uf home made capacitors.  
> The spark gap is 2 bolts less than 1/4" apart in a tube that is connected to the 
> blowing end of a vacuum.  The frequency is about 600kHz.  
> Any ideas and  help will be great.
> 
> Many thanks,
> Jay Howson
> 
> 
> 
> 
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