Re: Re[2]: MONSTER 100kW VTTC - Building now!

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

Original poster: FutureT-at-aol-dot-com 

In a message dated 2/23/04 8:16:39 PM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:

James,

Nice results !

I have one 5868 tube, but I haven't tried it yet except at
very low power.  Seems to be a good type of tube what what you've
described.  Did you find that you needed a toroid or corona ring
for over a 29" spark to prevent sparks from flaring off to the side from
the top turn of the secondary?  Do you find that the toroid helps your
spark length compared to operation without the toroid?

Cheers,
John


>Hi List,
>    Well, I feel I need a reply on this one. All who were at the Florida
>Teslathon last Aug or Sept(can't remember), got to watch the vertical Tesla
>coil firing away with the 2 pole transformers tied to it. Lets see now 280
>volts at 50 amps...lots of input power. The toobs are rated at 4000 volts.
>Mine are running 7500 volts. I really don't care if they last for 10 years.
>I have had failures in just about every componet. I have spares. I would
>estimate the spark length at 3 to 3½ feet at this power level. The spark is
>longer on ½ wave, but looks cooler and sounds meaner on full-wave. With the
>discharge point removed the spark danced around the toroid just like my SG
>coil. I see Dave McKinnon has already got the date for the 2004 Florida
>Teslathon on his site. Since we have it at my house, we're all going to have
>lots MORE fun this year. Hey Shad, Michael, Ralph put your $.02 in.
>
>Later,
>
>James