Re: [TCML] MMC capacitor Group Buy

[jhowson4@xxxxxxxxxxx]

Hello, 

Power supply 6Kva @ 8.5Kv Rms, 500ma 
But it behaves a little differently because my coil is DC with a large filter capacitor 
So really 24Kv DC at ~250ma if steady state operation. But as I am also using the dual gap approach, that adds a pulsed charging component to the capacitors as well, increasing the total rms current that the cap experiences . 
Depending on how this behaves i may convert over to a normal DC coil. 

The cap is .04uf and will need to deal with almost 600A peaks and 85A Rms current. 
I am designing for 12 strings of 14 per string. 
That's 168 caps, and the 0.047 unit is by far the cheapest way to do it, at ~$300, which is being funded by the sale of a variac on ebay, which I purchased cheap a few weeks ago for this purpose. 





Thanks, 
John "Jay" Howson IV 


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

----- Original Message -----
From: "Quarkster" <quarkster@xxxxxxx> 
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx> 
Sent: Friday, April 6, 2012 2:37:29 PM 
Subject: Re: [TCML] MMC capacitor Group Buy 

Jay - 

What is the rating (output voltage & current) of the power supply (NST, MOT bank, etc.) you have designed your MMC to match? 

What are the specs for your MMC itself (X many strings of X many caps in series), and what are the peak voltage and current that you'll be seeing in your coil's tank circuit? 

Regards, 
Herr Zapp 

--- On Thu, 4/5/12, jhowson4@xxxxxxxxxxx <jhowson4@xxxxxxxxxxx> wrote: 


From: jhowson4@xxxxxxxxxxx <jhowson4@xxxxxxxxxxx> 
Subject: [TCML] MMC capacitor Group Buy 
To: "tesla list" <tesla@xxxxxxxxxx> 
Date: Thursday, April 5, 2012, 11:15 PM 





Hey Guys, 

I am finally getting around to my group buy for MMC capacitors. 
I have chosen to go with the .047uf 2Kv 942C20S47K-F units 


Here are the particulars, the capacitor in question is 4th up from the bottom. 
http://datasheet.octopart.com/942C20S47K-F-Cornell-Dubilier-datasheet-161934.pdf 


Why am I getting these? Because they are the cheapest/most efficient way I can make the MMC capacitor I need for my coil. 

The price will be $1.72 or $1.73 Each 
+ your appropriate percentage of the sum of the shipping/handling/etc costs for the order from the supplier 
+ how much it costs me to ship them to you from my place (flat rate boxes) 

There will probably be a lead time on the delivery of the order. 
Your capacitors will ship to you prior to my keeping of my capacitors in the event of a partial delivery. 

If you want any 
Reply off list, and let me know. I will compile the totals, request a quote prior to ordering, and invoice you the exact amount via Paypal. 
The order will be placed once every one has paid. 



Information I would require, Your name, Number of capacitors, shipping address, paypal email address for the invoice. 

I could probably ship to other countries, but we would have to work it out. 



Cheers, 
John "Jay" Howson IV 


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

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