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Re: [TCML] First coil

I was merely suggesting a way of having a permanent installation, rather than having to unroll multiple rolls of hardware cloth or chicken wire, that will not want to stay flat. I don't live 100 meters from a salt marsh.

      From: jimlux <jimlux@xxxxxxxxxxxxx>
 To: tesla@xxxxxxxxxx 
 Sent: Friday, August 11, 2017 5:40 PM
 Subject: Re: [TCML] First coil
On 8/11/17 7:54 AM, Yurtle Turtle via Tesla wrote:
> Does a counterpoise work best directly under the coil, or could it be buried 10' feet away, but a HUGE welding cable to connect it?
Best under the coil - you're looking for "E-field management" more than 
"return to earth".  In fact, if you operated your coil inside a big 
cage, that would be best.

The "soil" isn't really supposed to be part of the circuit, so burying a 
ground rod 100 meters away in a salt marsh and then running a wire to 
your coil is sort of counter productive.

>      From: Carl Noggle <cn8@xxxxxxx>
>  To: Yurtle Turtle <yurtle_t@xxxxxxxxx>; Tesla Coil Mailing List <tesla@xxxxxxxxxx>
>  Sent: Friday, August 11, 2017 10:50 AM
>  Subject: Re: [TCML] First coil
> A long wire or rod buried in a horizontal trench often makes a better
> ground than a vertical rod, especially when there is caliche or rocks
> that prevent digging deep holes.  The good thing about a Tesla coil is
> its high impedance, so it can tolerate a high impedance ground.  I have
> used a screwdriver pushed into the ground, and it worked well.  You can
> pour some water into a depression around the screwdriver.  (Cheesy but
> effective)
> Safety ground for the power supply should, of course, return to the
> service entrance (green wire) and be separate from the secondary low end
> ground.

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