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RE: [TCML] Matt tesla
yes the do apperntly since thats what ive been told i need and oh so its basicly the same type of capacitor that spark gap ones use well thats less complicated than i expected. So on another topic i have a very odd thing happening when i use the system from my small spark gap tesla coil to run my big coil ( just to tune it and see what i can get with 9kv ) i get 2 foot sparks which is about the same as the smaller coil got but here is the thing i need somone to explain to me. For some reason there coming from the secondary not the torrid the will come from all over the secondary arc wharever they want its just crazy nothing comes from the torrid but if the torrids not there nothing happens.... so what i wonder is is this caused by somthing wrong with the coil or just because the system for my little coil is not designed for this one?
> Date: Thu, 16 May 2013 09:58:36 -0700
> From: jimlux@xxxxxxxxxxxxx
> To: tesla@xxxxxxxxxx
> Subject: Re: [TCML] (no subject)
> On 5/16/13 7:38 AM, Matthew Hebb wrote:
> > i need to design a mmc capactor for the solid state, find the
> > resonent frequency of the secondary with and without the torrid find
> > the frequency of the primary and tune it to the secondary and then
> > order the kit from eastern voltage reasearch and built it... its
> > gunna be alot of work mainly im looking for advice and how to
> > calculate theese things
> Do people use MMC for solid state? I thought the primary voltage is low
> enough that you don't do that.. anyway..
> MMC design is a matter of figuring out which series parallel combination
> of off the shelf caps gets you closest..
> Look up the Cornell-Dubilier (CDE) 942C series capacitor. they're
> available in various voltages.. 1, 1.2, 1.6, 2kV (I think) and various
> capacitances (.1 uF, .15uF)
> depending on where you buy, how brave you are, etc.
> If you need, say, a 16 kV capacitor, you could either string together 16
> 1kV caps or 10 1.6kV caps or 8 2kV caps. (or if you're brave, run them
> over their rated voltage...)
> That gives you 1/16th, 1/10th, or 1/8th of the capacitance of cap in
> series. You need to figure out how many parallel strings you need to get
> the capacitance you want.
> The "easy" way is to build a spreadsheet of # of caps vs size/voltage,
> and then look up the prices and figure out what the cheapest way to go is.
> Resonant frequencies are best calculated using a tool like Java TC. Or
> even Ed Sonderman's old tesla.xls file that uses Wheeler equation for L
> and Medhurst for C. You probably don't need gnats eyelash precision at
> Yes, it *is* a lot of work.
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