how much power do you need? another question.

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

Original poster: "Pholp Smiff by way of Terry Fritz <twftesla-at-uswest-dot-net>" <kawanze-at-hotmail-dot-com>




>From: "Tesla list" 
>To: tesla-at-pupman-dot-com 
>Subject: Re: how much power do you need? 
>Date: Thu, 01 Feb 2001 23:20:38 -0700 
> 
>Original poster: "Troy Peterson by way of Terry Fritz " 
> 
>Hi Phillip, 
> 
> > How big of a transformer/power source do you need to get nice arcs that 
>you 
> > can actually see during the day and are relatively thick. I don't mean in 
> 
>Surprisinly little actually. 
> 
> > having to be pitch black. My first coil was 12kv-at-60ma and at first i 
>didn't 
> 
>Hmmm, 12 000 x 0.060 .... Thats 720 VA, My fist coil ran off of a single 
>OBIT, 10kv -at- 23ma, which is 230VA. It was a rather makeshift and small coil 
>but it produced intense streamers about 2-3 inches long. The arcs were 
>planely visible (though dim) under direct sunlight, and could light an 
>entire room up in the dark with an eerie purple-white-blue color on people's 
>faces, kinda like a blacklight. 
> 
> > think it was working, until the sun started to set and i realized that 
>there 
> > actually were faint streamers coming off the top. 
> 
>Probably not tuned correctly. Did you run the specs through a calculator 
>program (or hand calculate them) becore building it. Maybe if you give the 
>list some specifics on your coil they might be able to help you make that 
>720 VA xformer Scream. My current coil is powered by 4 obits which is only 
>920 VA, but it can throw good 18-20 inch arcs with 12 inch streames using 
>bottle caps. I did manage to get huge arcs (close to 36 inches I 
>guesstimage) using Glassmike caps, but they promptly blew up after a few 
>seconds... Good thing I shielded them in a wooden box - There were glass 
>fragments embedded deep in the wood. 
> 
 
I'm pretty sure it's tuned correctly, because, depending on where i tap the
primary, the spark length will go from 1 foot to about 3 feet. I want to build
one using my MOT(s) with nice bright sparks, but the only coils i've seen like
that were powered by pole pigs... my parents hate me messing with my tesla coil
enough, they'd go crazy if i brought home a pole pig...


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