Re: DC tesla coil

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Luc by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ludev-at-videotron.ca>

Hi Kamil

I be happy to have a transformer like yours; 13KV at near 4KW,
use a good RF filter to protect your transfo and if you want to
experiment with DC just rectify it and you get 18 KV more than
enough, when you go higher than that you start to have problem
with corona. It's not a bad idea to put your transfo in oil.

Cheers,

Luc Benard    

Tesla list wrote:
> 
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<tcmail-at-poczta.fm>
> 
> Hi!
> 
> Im looking for information and construction hints about DC Tesla Coils. If
> You have any information, or you know where can I find it please let me
> know. Aspecially I'm looking for materials about DC tesla coil construction
> and voltage multipliers construction. I know only basic things about
> voltage multipliers (how the voltage is multiplied), but I don't know for
> example how to count capacitor values, what is the time of loading
> capacitor from multiplier output? etc. I'm intrested in using multipliers
> in TC's because resonant rise effect causes transformer damages. I make my
> transformers on my own (they are too expensive for me), but I cant make
> transformer making very high voltage, because I have only an iron core
> which is designed for low voltage. It's a big core (48 cm^2), but windows
> for windings are small (there is no much place for isolation). The highest
> voltage I have made was 13kV 300mA (it was getting hot(windings wire was
> thinner than it should be) while working, but i thought to put it in an
> oil, or to limit current). There was no much isolation so i couldn't use
> resonant rise effect. Also I think, that using voltage multiplier makes me
> able to load any size of capacitor (also bigger than resonnant) to high
> voltage (higher than produces my transformer). What do You think about
> using voltage multiplier? Please send me any information about multipliers
> that You have.
> 
> Kamil Kompa
> 
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