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Re: REAL CAPACITOR (where can i buy one?)



Original poster: "Jason Petrou by way of Terry Fritz <twftesla-at-uswest-dot-net>" <jasonp-at-btinternet-dot-com>

Check out SAm Barros' website (http://www.powerlabs-dot-org). He's using some
seriosly BIG industrial capacitors - i think thay are about 300 $US each,
but if you have piles of cass it might be worth it. talk to sam and see what
he thinks...

Jason

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, April 10, 2001 1:42 AM
Subject: REAL CAPACITOR (where can i buy one?)


> Original poster: "Drew Murray by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<drewallmighty-at-hotmail-dot-com>
>
> Hello Everybody,
> Yes, it's me ....DREW!
> I'm Back and i am aiming to get my coil working better than ever. You may
> remember some of my earlier posts from before the science fair such as:
> DArN CAPACITORS
> My PT is loud!
> and so on.
> I won second place and $80 (measly i know) in the physics category at the
> new brunswick provincial science fair that was held at the university of
> moncton.
> I am now using my coil to put on shows during intermission at school plays
> and variety shows. It has gained me a lot of popularity. (HE HE)
> I am 15 years old and i am making nearly 4 foot long sparks with my ,so
> called masterpiece of a tesla coil! People call me a genius and stuff.
> I am rather tired of frigging around with square sheets of plastic and al
> foil for my capacitor. It worked pretty good for an uncalculated
capacitor.
> Vapor barrier melts! 1 gallon zip lock bags do not melt, this makes them
> much better for dry capacitors. I wonder why this is. Anyway, i better get
> to the point. I have the school's permission to buy a capacitor with
pretty
> much an unlimited budget. I have lots of cash and i want a capacitor that
> will make my tesla coil kick!
> I want a professional Polypropylene pulse discharge capacitor, so where do
i
> buy one? I am in New Brunswick, Canada, so i want it from a company that
is
> somewhere on this side of the planet! I am not really interested in MMC's
> because i have heard from a reliable source that they suck, performance
> wise, compared to professional pulse caps.
> I have a 1kva 120:4200 PT and i am feeding 300v into it. I am using a 20
ohm
> 4.5 amp max rheostat and a burned out 250va 10000v oil burner igniter in a
> series with the pt for current limiting. I have no idea what is coming out
> of the PT, except that it is somewhere around 10500v. I have been running
it
> this way for a few months now and it never gets warm. Is there some way
that
> i can calculate just what is coming out of it so i can determine what size
> of capacitor i will need.
> Any help, advice and/or comments would be greatly appreciated!
>                                                             Sincerely,
>                                                             Drew Murray
>
> Notes:  Always build a plate capacitor with a little higher capacitance
than
> required if you are going to have it in mineral oil. The plastic will
swell
> and lower the capacitance drastically, causing performance to lax.
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