Re: [TCML] stuck at 36"

[Bert Hickman <bert.hickman@xxxxxxxxxx>]

b.jbohn@xxxxxxxxxxx wrote:
> HI all
> I found this capacitor and am wondering if they would be ok for mmc cap bank.
> made by F-DYNE part#c-jd-15-200-1 it is avalible at tedss.com.There part# is2020006991
> The price is reasonable.I think 
> THANKS                
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Unfortunately, that's a polyester film capacitor. All film capacitors 
are not the same. As Gary mentioned, some dielectrics are much lossier 
than others under RF use. All F-Dyne film caps use a polyester 
dielectric system. Polyester caps tend to overheat, melt, and 
prematurely die in Tesla coil use.  Ideally, you want to use low loss 
polypropylene film-foil snubber capacitors. Some of these include the 
following types:

Cornell-Dubilier Type 942C Film/Foil
Panasonic ECW-H type
WIMA FKP1

There are others that may work, but the above types will definitely work 
well in Tesla Coil service. You can find these on eBay, through Dr. 
Resonance, and many electronic parts distributors.

Bert
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