Re: tesla virgin no more ! but need help

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Mark Broker <mbroker-at-thegeekgroup-dot-org> 

Are you using 942C or 940C series capacitors?  The 940C's are generally not 
good for tesla coiling since they are a film construction with a 
polypropylene AND polyester dielectric (which isn't apparent except in 
their PDF datasheet).  Polyester is a poor dielectric at RF, and film caps 
cannot handle the peak currents.  However I have heard of people, but 
cannot recall any specifics, who have used the 940Cs without problems....

But, I think this point is secondary to the fact that you need more like 
.008uF of primary cap for your 15/30.  Put both MMC strings in series for 
.006uF and tune for best sparks.

Mark Broker
Chief Engineer, The Geek Group


On Thu, 05 Feb 2004 18:05:14 -0700, Tesla list <tesla-at-pupman-dot-com> wrote:

>Original poster: "steven hyman" <steve502-at-bellsouth-dot-net> I am using 
>cornell dubilier  1600 vt  .15 uf   polypropylene caps  , I now
>have 15 each string x2
>strings  should be  .01 uf each for a total of .02uf
>is this correct ??
>in researching this , I thought this would be sufficient
>
>Steve