Re: [TCML] Beginning Tesla Design

[<mrapol@xxxxxxxxxxxx>]

Why not build your own capacitors? They will be cheap, should work fine, and 
for a science fair it would carry a lot more cachet to have an array of caps 
you made yourself. They won't be as efficient as factory-made caps, but for 
a demonstration device, homemade has many advantages.

PBT


----- Original Message ----- 
From: "Taylor Skidmore" <balt11t@xxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Monday, January 03, 2011 8:20 PM
Subject: Re: [TCML] Beginning Tesla Design


> Well, no harm involved. I really want to use this Coil for a science fair 
> project. My teacher, however, wants a project that really has no 
> publicized results, so I'm having a little trouble on that end. I was 
> thinking about something along the lines of adding a second toroid, 
> letting it sit atop the first, but I really don't know what I could 
> measure, or if that's a valid project at all.. Since I will be using the 
> Coil in the fair, my budget grows exponentially, as my parents are 
> suddenly willing to donate some money, heh. Any ideas?
>
>
>
>
> On 1/3/2011 6:06 PM, Brandon Garretson wrote:
> > Sorry Taylor, I didnt mean to throw you a curve ball there.
> > What I was getting at is according to your TeslaMap output, your
> > primary cap size is very close to resonant, which means running the
> > coil in that configuration could create a condition that may cause the
> > secondary voltage in your NST to rise to a point well over what it is
> > safely rated to operate at and ultimately burn it out.
> > Secondly, using just enough caps in the MMC to reach the desired
> > capacitance, but ignoring the fact that they are rated for DC
> > operation is likely to significantly shorten their lives (perhaps to
> > just mere minutes).
> > Im not saying that you need to spend a lot of money and build a museum
> > piece, but you may find that by building it to the bare minimum that
> > looks like it should work on paper could cause it to go up in smoke on
> > its first test run.
> > Perhaps a $65 investment on a more durable design would serve you
> > better than $45 spent on burnt-out components.
> > I may be wrong, these things can be strange beasts, perhaps it could
> > last much longer than you need it to for the purpose its being built.
> > I would just hate to see it die before you got a chance to demonstrate 
> > it.
> > Ask a lot of questions and read through the TCML archives, there is a
> > lot information here.
> > Best of luck!
> >
> > > On Sat, Jan 1, 2011 at 7:38 PM, Taylor Skidmore<balt11t@xxxxxxxxx> 
> > > wrote:
> >
> > > > I'm not really sure how to respond to that, other than that my MMS is 
> > > > being
> > > > supplie by a friend. I don't want this to be as big as possible, but 
> > > > rather
> > > > a simple, small, economic design. I have approximately $45 to make 
> > > > this,
> > > > not
> > > > including my NST.
> > > > On Dec 31, 2010 12:27 PM, "Brandon Garretson"<garretsontech@xxxxxxxxx>
> > > > wrote:
> > > > > Your primary cap looks a little small and close to resonant size, try 
> > > > > to
> > > > get
> > > > > it up just over 9nf like TeslaMap recommends for a static gap.
> > > > > Also try to build it to handle at least 1.5 to 2 times your NST 
> > > > > secondary
> > > > > voltage as the caps you will likely use are rated for DC.
> > > > > My 12/60 powered coil MMC is rated over 30kv.
> > _______________________________________________
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> > Tesla@xxxxxxxxxx
> > http://www.pupman.com/mailman/listinfo/tesla
>
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