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Re: Ceramic Caps

Chris,

     I have used caps that have the same specs as those on a small coil
(6kv 30ma) and have had great results. They have been on there for about 2
years and I have never had one blow. The only problem is with the more caps
you use the more loss. A single cap would work better but would be more
costly. For 10kv 30ma you would need about .008uf, you should have at least
3X the AC rating when running DC caps. That means at least 72 caps,  24
sets of 3 in series. Thats allot of caps, I do not know if they will last
at that higher voltage, I use 15 sets of 3 in series. Good luck!

Aron   

----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Ceramin Caps
> Date: Thursday, April 08, 1999 11:14 AM
> 
> Original Poster: "christopher boden" <chrisboden-at-hotmail-dot-com> 
> 
> I've been reading the list for about 6 months and decided on finally 
> building my first coil.
> I've been rat-holing pices and parts for a while and have gotten a 
> couple FITS (Furnace Ignition Transformers) at 10KVAC 30mA (I have 4) 
> and a MOT (I think 2KVAC -at-500mA).
> I'm also looking for a pole pig and any other parts.
>   The main thing keeping me from actually starting has been the Caps. 
> I don't want to spend a fortune on buying one only to destroy it in a 
> matter of hours, and I don't want to invest a week or two in rolling 
> my own only to detonate it in a couple minutes.
>    I have found a source for Ceramic Disk Caps rated .001UF -at- 10KV
> (Matsushita # ECK-D4A102MDA) and can get 100 for $80.
> 
>   Here's the rub....
> How many do I need?
> How do I assemble them?
> How many, of what kind, of Transformer do I wire up and how?
> 
> I want something that will take serious abuse while I learn the 
> basics. I don't mind way overenginneering the individual components 
> even if it will cost more to do it.
> I have all the time in the world to sit and solder little cap leads 
> as long as I know it will work and last for quite a while.
> 
> I know all you guys out here have been doing this for years and I 
> trust your advice implicitly. Anything you may have to add about 
> other places to start (secondary size/type, primary specs, whatever..)
> is greatly appreciated. I'm a Geek, not a God, and I have a lot to 
> learn. Please help, thanks.
> 
> 
> "Evolution Stops When Stupidity Is No Longer Fatal" 
>   C.Boden (Stolen from Sam Barros, who stole it from an old Russian 
> proverb)  
>  The Geek Shall Inherit the Earth! 
> 
> Christopher A. Boden Esq.               
> President/C.E.O.                       
> The Geek Group 
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