# Re: I am Dr. Megavolt

```Playa dust is indeed an evil thing, also for stereo/video equipment. Saw Dr.
Megavolt's systems at Burning Man. What beautiful streamers!

Ken Donnell

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, September 06, 2000 5:48 PM
Subject: Re: I am Dr. Megavolt

> Original poster: "Greg Leyh" <lod-at-pacbell-dot-net>
>
> Original poster: "Paul Mathus" <pmathus-at-learningco-dot-com>
>
>
> > The two coils are discrete.  Ran off the same 125KW genny, and shared
> > the same ground plane, that's it.  Pulled 200 amps when we hit them
> > both at the same time, the genny was chugging.  They would hit each
> > other constantly but I didn't see any of the continuous arc between
> > them that you would get from an antiphase system, as i understand it.
> > Probably better for our show to have them both throwing bolts
> > everywhere.  The truck was barely long enough to hold them both and it
> > was the biggest one we could rent without a special license.
> >
> > I believe we are doing at least 1mv out the top of each coil, but i'll
> > have to check the math on that. . . How dare you impune the sacred
> > name of Dr. Megavolt!!!!  just kidding, heh heh heh
>
>
> Impune??  (I'll have to look that one up. ^_^ )
> One of the best ways for calculating the top electrode
> voltage is to take the stored energy in the primary cap
> and and transfer it in the top electrode capacitance.
> Assuming that about 75% of the input energy makes it to
> the output, the equation is simply:
>
>   [1/2 * Cp * Vp^2] * 75%  =  1/2 * Cs * Vs^2
>
> Cs can be approximated by the tank circuit equation if the
> secondary inductance and the output frequency are known.
> Lumping the secondary components in this way is actually
> quite accurate, especially if a large toroid is used, since
> the sheet C of the sec stores only a small percentage of the
> total energy due to it's reduced voltage.
>
> Playa dust is an evil thing, isn't it?
> --
>
>
> -GL
> www.lod-dot-org
>
>
>
>

```