Re: My 4 inch Tesla Coil (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Tue, 23 Oct 2007 23:08:29 +0800
From: Peter Terren <pterren@xxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: My 4 inch Tesla Coil  (fwd)

Well done. I wouldn't be too unhappy with the performance.  Most people 
running 4 inch coils will have a 12kV 30mA coil and twice your power which 
is not 180W.
NST's are rated at open circuit volts and short circuit current not both 
together.  Maximum power transfer is much less than that 180W if I recall.
http://www.pupman.com/listarchives/2003/October/msg00484.html
Large toroids decrease the topload voltage but if you have the power to 
spare this will increase peak spark power and propagation.  Yours may be 
right for your power.
Peter
http://tesladownunder.com

> ---------- Forwarded message ----------
> Date: Tue, 23 Oct 2007 00:54:26 EDT
> From: Ln2guy42@xxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: My 4 inch Tesla Coil
>
> Hello Everyone!
>
> I'm 14 years old and I  recently built a tesla coil, and I  was wondering 
> if
> it is up to par with the other 4 inch diameter tesla coils out  there and 
> if
> not, how I can improve it. The power supply is a 6,000 volt 30  ma NST, so 
> 180
> watts. The capacitor is an 8000 volt .005 mica capacitor in  parallel with 
> a
> beer bottle capacitor, so the total capacitance is around .01  mfd. I have
> heard many people saying that mica capacitors are very "fragile" and  can 
> die very
> easily, but I haven't had any problems with it whatsoever. The coil  is 4
> inches in diameter and is 22 inches long. The primary is copper tubing 1/4 
> inch
> At best, I can get around 18-20 inches of arcing. Many of the  other 4 
> inch
> tesla coils I have seen on Youtube have a much larger toroid than  mine, 
> but
> when I add a bigger toroid, the arc gets smaller regardless of tuning.  I 
> think
> this is because my coil is underpowered but I'm not sure. I would  greatly
> appreciate any comments.
>
> This is the link to the video.
>
> _http://www.youtube.com/watch?v=I9GyxisrWAw_
> (http://www.youtube.com/watch?v=I9GyxisrWAw)
>
> Thank You so Much!
> Amir
>
> Bye the way are there going to be any Teslathons in  California?
>
>
>
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>