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Re: PLEASE......need advice, help with power supply

Original poster: "Scott Bogard" <teslas-intern@xxxxxxxxxxx>

Tomas,
I agree with David, if this is your first try at coiling, go with the NST, I have learned from my experience, that you will almost certainly get shocked at some point your first time around (you don't even need to touch anything, as high voltage can track all over the place (especially wood or metal), and if your leaning against somthng metal (a chair perhaps) your grounded, and depending on what gets you, it hurts! If 4.5kV is to low voltage to get good sparks, find an OBIT, they are 10kV and usually 23mA (it is hard to get killed with 23mA, but you will quickly learn where not to put your hands). You can get them used for free somtimes, and new thay are about $50 (just don't get a solid state one, if the cover is plastic, or it says 20kHz on it somwhere, it is no good). If you get a used one, check to make sure it is good, if one or both sides won't arc to the ground (literally) it has a half short, and will cause problems (I think this holds for NSTs as well). Once you have rigged it to work with an OBIT or your NST (If your NST isn't solid state eithor), switching to a higher power source will be as easy as pie! Have fun, be safe, make sparks! 
Scott Bogard.




From: "Tesla list" <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: PLEASE......need advice,  help with power supply
Date: Fri, 30 Mar 2007 22:41:28 -0600

Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>

Tomas,

Well, that would just depend on how large of a coil
that you are wanting to build. If this is your first try
at building a Tesla coil, I would suggest building one
with your 4.5 kV NST, as a "shocking" mistake
would be painful, but not likely fatal. If you series
the (2)  5 kV, 5 kW transformers, that will give you
a 10 kV, 10 kW supply, or 10,000 volts at 1 amp.
You could drive a monster sized coil with this much
power, but a shock from this would likely be fatal
indeed! Most coilers go through the learning process
by building a smaller, lower powered coil on their
first try and then go on to building larger, more power-
ful systems once they've gained experience and finesse
in safely handling very dangerous high voltages.

David



----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Thursday, March 29, 2007 9:42 PM
Subject: Re: PLEASE......need advice, help with power supply


> Original poster: Tomas Stankevic <Tomas.Stankevic@xxxxxxxx>
>
> Yes, I have 4.5kV NST (I will check the power). And also I can have
> two 5kV 5kW transformers. Can I connect them in series to get 10kV?
>
> Secondary coil is 2m x 30cm. Primary 20 windings 1.2cm copper tubing.
> Primary capacitor: I have a lot of high voltage capacitors so I can
> make any between 10 and 200 nF, according to transformer's power
>
> So is it better to connect two 5kV in series or to use the 4.5kV NST
somehow?
>
>
> Thank you for advices, Tomas
>
>
>
>
>
>
>
>
>
> Tesla list wrote:
> >Original poster: FIFTYGUY@xxxxxxx
> >In a message dated 3/27/07 1:24:25 A.M. Eastern Standard Time,
> >tesla@xxxxxxxxxx writes:
> >
> > >I have only 12kW, 4.5 kV NST transformer and some MOTs. I also can
> > >get some small 100W NSTs, but I need at least 5kW power.
> >
> >     Is that correct? You have a 12kW NST already??
> >
> >     I imagine 4 or 6 of your MOT's would get you pretty close to 5kW.
> >
> >-Phil LaBudde
> >
> >
> >
> >
> >----------
> >AOL now offers free email to everyone. Find out more about what's
> >free from AOL at <http://www.aol.com?ncid=AOLAOF00020000000339>AOL.com.
> >
> >
> >
>
>
>



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