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Re: DC powered tesla coil (fwd)



On Fri, 7 Aug 1998 20:54:59 -0600 (MDT), Tesla List
<tesla-at-pupman-dot-com>, you wrote:


>Jim,
>
>Are you using a step up type input variac?  0 to 140 volts output 
>from a 120 volt main. Did I mention I use this?  What kind of spark
>gap and toroid are you using?  I obtained about 46" to 49" using
>a static gap, but the operation was erratic and the NST became
>carbon tracked, but I wasn't using any NST safety devices at the
>time.  Now I use safety gaps with my sync gap systems, and 
>haven't had any more problems.
>
John,

	Sorry for taking so long to reply but august was a month from
'ell.

I'm running up to 140Vac into my neon. 9 section RQ gap with a
variable speed vacuum cleaner motor on it. 6" by 30" toroid. This was
with what should be a lousy primary of 30 turns of #12 wire and 16nF
of home rolled cap.

	jim