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Re: More tube coil stuff (Carl Willis)...

In a message dated 9/2/00 6:45:15 PM Pacific Daylight Time, tesla-at-pupman-dot-com 

> What is needed is an SCR that can handle about
>  20 - 40 amps and 600 volts...that kind of fat. 


In a pinch, you can use a 600 volt TRIAC.  They're not as robust
as the SCR, but I've used them successfully up to about 29" sparks.
I forget what the current rating was.  Over 29" sparks they short
out,  ho ho ho !!   I had gotten a few of them for free, so I didn't 
worry about them.  BOOOM  BANG  FIZZLE      :)  I use SCR's

I'm make a guess that your new 833A will give about the same
spark length as the old one     :)

John Freau