Re: My 4 inch Tesla Coil (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Tue, 23 Oct 2007 13:38:35 -0400
From: futuret@xxxxxxx
To: tesla@xxxxxxxxxx
Subject: Re: My 4 inch Tesla Coil  (fwd)


Amir,



Yes, more power will give longer sparks.? Mica capacitors

are excellent if you don't overvolt them, and if they are

the true transmitting type which are high quality.? There

are lower quality mica caps which are not designed for

high tesla currents.? I get 42" sparks from my TT-42 

coil using a 12/30 robest NST, and a 0.0145uF poly cap.
I use a 120 bps sync rotary, and a 4" x 13" spun aluminum
toroid.

http://hometown.aol.com/futuret/page3.html

John




-----Original Message-----
From: Tesla list <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Sent: Tue, 23 Oct 2007 8:39 am
Subject: My 4 inch Tesla Coil (fwd)





---------- 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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