Re: [TCML] ANOTHER ONE DOWN, ANOTHER 37667 BITES THE DUST

[jhowson4@xxxxxxxxxxx]

hmmm, these caps might be useful to me. 
Just out of curiosity , what bps and voltage are you running at? 

When I do my calculations, my biggest problem is the RMS current being too high requiring large series numbers to make up for it. But i have been collecting data on peoples coils to see how far they are pushing the limits on the various CDE caps. 



Thanks, 
John "Jay" Howson IV 


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

----- Original Message -----
From: "Tesla" <tesla@xxxxxxxxxxxxxxx> 
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx> 
Sent: Sunday, May 13, 2012 5:26:44 PM 
Subject: Re: [TCML] ANOTHER ONE DOWN, ANOTHER 37667 BITES THE DUST 

Re caps for big coils 

The 942C series CDE 2kv 0.15uF cap is the one with all the publicity largely 
due early geek group support for bulk buys and lots have been successfully 
used. IMHO in bigger arrays (often at lower resonant frequencies) the CDE 
942C series 0.33uF 1.6kV option is more economic. This cap has better Ipk 
capabilities and is otherwise similar in spec. For bigger arrays the much 
bigger capacitance is more than offset by the small extra numbers in series 
required to make the voltage rating. 

I've used these CDE 942C type 0.33uF 1600 volts in a 15 in series and 4 of 
these strings in parallel (88nF) at 10kVA between 40 and 90 kHz without 
problems in relatively short runs (< 2min) See also Robin Copini in Adelaide 
Aussie who made a big array of these caps, sadly Robin's WEB pages appear to 
no longer be available but there is lots about his activities in the list 
archives. 

see data at http://www.cde.com/catalogs/942C.pdf 

Rgds 
Ted in NZ 

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