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

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Thu, 08 Nov 2007 15:32:42 +0000
From: David Rieben <drieben@xxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Cc: drieben@xxxxxxxxxxx
Subject: Re: Why is the coil being weird???? (fwd)

Jay,

The spark gap is your problem. You must obtain a means
to dissipate the heat that is being generated in your SG. 
When the air between the SG contacts heats up too much
and isn't being properly cooled (quenched), the air tends to 
ionize which greatly reduces the breakdown voltage of the SG. 
Consequently, the output cannot reach the desired potential. 
You need to build a forced-air cooled, copper tube electrode
spark gap or a rotary gap to properly dissipate the resultant heat 
that the SG generates so that it can quench.

--
David Rieben

-------------- Original message -------------- 
From: "Tesla list" <tesla@xxxxxxxxxx> 

> 
> ---------- 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 
> 
>