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Re: RF sent to bed without supper
to: Yuri
An extension cord ground is usually only 12 or 14 AWG wire. Your peak
secondary currents may be as high as 50-60 amps or more. This is why a
separate cable is recommended for grounding the bottom of the sec coil. Use
4 or 6 AWG fine stranded welding cable -- very flexible and the fine copper
wires conduct the RF currents well. If you are doing a remote demo and you
don't have a good exterior ground then clip to a water pipe with a big
copper alligator clip.
Regards,
Dr.Resonance-at-next-wave-dot-net
-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Tuesday, April 20, 1999 1:22 AM
Subject: RF sent to bed without supper
>Original Poster: "Yuri Markov" <wmondale-at-hotmail-dot-com>
>
>In several diagrams of the tesla coil circuit layout, I have seen two
>different types of grounds labeled - what appears to be a normal
>ground, for the transformer and such, and an RF ground. Is this
>saying that the third little hole on my extension cord is not
>sufficient to ground the base of my secondary coil? Am I meant to
>drive a six-foot stake into the back yard to ground the secondary?
>For the record, if it makes a difference, my goal is to have visible
>sparks, not to scare the neighbors - my power source will be no
>greater than 15000 volts.
>
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