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Re: grounds, was RE: capacitance of homemade caps

Original poster: "S&JY" <youngsters@xxxxxxxxxxxxxxx>

Paul,

Your ground setup will be fine.  Your 10 foot cables laying on the concrete
floor will be OK because of their capacitive coupling to the floor that
partially overcomes the inductance of the cables.  You can use just one pair
of jumper cables - two is overkill.

Happy coiling to you!
--Steve Y.

----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Friday, April 08, 2005 9:06 PM
Subject: Re: grounds, was RE: capacitance of homemade caps


> Original poster: "Paul B. Brodie" <pbbrodie@xxxxxxxxxxxxx>
>
> So, after reading your post, I'm a little confused about grounding my
small
> coil, 15 kV, 30 mA NST, 4" diameter by 21" tall secondary. I have driven
an
> 8' by .5" ground rod approximately 10' from where I plan to run the coil,
> the front part of my garage on a concrete slab. The bottom of the
secondary
> is connected to this ground rod by 10' of two 15' long auto jumper cables,
> four conductors of 4 AWG.
>
> I asked this question once before with no responses. Should I use a
> counterpoise ground? Can someone please explain how a counterpoise works?
> Is a counterpoise an either or proposition or should I use both? Thanks. I
> really appreciate any help.
> Paul Brodie
>