Re: [TCML] DC rating for 7KV5 transformer

[jhowson4@xxxxxxxxxxx]

You need to look at the RMS current rating for the capacitor, not just the voltage rating. 
As well as the peak current rating, is the cap rated for pulse duty? 

Also pay attention to the type of dielectric inside the capacitor, polypropylene is the best. 


for a static gap i would guess a 0.01uf cap, and for a SRSG perhaps .02. 
I usually shoot for tipple the RMS voltage as the cap voltage. 

What caps were you using out of curiosity ? 



Thanks, 
John "Jay" Howson IV 


"Why thank you, I will be happy to take those electrons off your hands." 

----- Original Message -----
From: "Scott Moseley" <scott@xxxxxxxxxx> 
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx> 
Sent: Sunday, March 11, 2012 7:43:57 PM 
Subject: [TCML] DC rating for 7KV5 transformer 

Just wondering what rating I should use for caps if my NST is 7.5KV @ 30mA. 
I tried 2 10Kv caps in series, and they burst into flames (and so did the 
$20 I spent on them). Ideas? 

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