Re: [TCML] Re: Capacitor advice

[Scott Bogard <sdbogard@xxxxxxxxx>]

For a 12/30 NST you want about 9-10 nF max with a static gap, so use 
fewer plates (try about 9.)  Did you acquire a blower fan for your spark 
gap?  You'll need a small top load, like a 3 cm by 15 cm, and then it 
should tune at about turn 15 on the primary assuming you reduced to 9 nF 
(try both 8 and 9 plates, see what works better for you.)  For greater 
portability at the expense of spark length and more primary tubing you 
could use like 2 or 3 plates, but you will need about a 30 turn primary 
to pull this off.  Put it together fire it up, let us know what happens.

Scott Bogard.
http://bogard.110mb.com/TeslaCoil.htm

On 8/6/2010 2:27 AM, amir gh wrote:
> hi.
> my sec is about 1700 turns . 11 cm in diameter .
> pri is 1 to 17 .
> cap is 31 (30*30 cm) glasses with 30 (25*25cm) aluminum foils between 'em .
> multimeter says 38.6 nF .
> NST is 12kV @30 mA.
> stationary gap with 1 or 2 mm width .
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