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Re: [TCML] My woeful RF ground experiments and lots of questions.



FYI..Keep the end of the rod fairly blunt and not pointed, you will discover that the rod will drive in faster and straighter with the blunt end...Happy hammering

PL Camp

-------------- Original message -------------- 
From: Jeremy Scott <supertux1@xxxxxxxxx> 

> 
> Yeah I think I am going to try the water method that everyone suggests. 
> 
> So the home improvement stores sell copper plated pipes (steel?) that are for 
> specifically pounding into the ground? I didn't know that, thank you. 
> 
> I need an excuse to buy a sledgehammer. :) 
> 
> --- On Tue, 7/15/08, David Rieben wrote: 
> 
> > From: David Rieben 
> > Subject: Re: [TCML] My woeful RF ground experiments and lots of questions. 
> > To: "Tesla Coil Mailing List" 
> > Date: Tuesday, July 15, 2008, 8:07 AM 
> > Hi Jeremy, 
> > 
> > I don't think it's good idea to tie in your RF 
> > ground to your mains ground for your home's 
> > electrical service. If I read your posting right, 
> > that's what you're proposing as you state that 
> > the copper water pipe is tapped by the fuse 
> > box ground about 5 ft. from where it goes under 
> > the concrete foundation. 
> > 
> > You can try running water at a trickle from a 
> > garden hose to the hole that you are starting 
> > while you're hammering it into the ground. 
> > Also, get a copper clad grounding rod from 
> > the electrical department of your local Home 
> > Depot, Lowes, ect. and use for this purpose 
> > instead of a copper pipe. The grounding rod 
> > will take the abuse of sledge hammer strikes 
> > to fully drive it into the ground. Or you could 
> > wait until a wetter time of year when the ground 
> > is naturally softer ;^) 
> > 
> > David Rieben 
> > 
> > 
> > ----- Original Message ----- 
> > From: "Jeremy Scott" 
> > To: 
> > Sent: Monday, July 14, 2008 5:38 PM 
> > Subject: [TCML] My woeful RF ground experiments and lots of 
> > questions. 
> > 
> > 
> > > Hi all, 
> > > 
> > > So I tried pounding a short section of copper pipe 
> > into the dirt outside 
> > > of my garage. It didn't go so well, my 
> > 'soil' is mostly clay with lots of 
> > > large rocks. There's just no way I'm going to 
> > get anything more than a 
> > > foot into the ground without augering a huge hole 
> > first and the only 
> > > places that would be acceptable to do that are far 
> > away from where I'd be 
> > > running a coil. 
> > > 
> > > In my garage, I have a cold water faucet. The copper 
> > pipe for this runs 
> > > about 20 feet from the faucet before entering the 
> > concrete foundation of 
> > > my house. About five feet or so from where the pipe 
> > goes into the 
> > > foundation, the green ground wire to the fuse box (a 
> > few feet away) 
> > > is tied in. 
> > > 
> > > What am I risking if I connect the coil's RF 
> > ground to the faucet in 
> > > the garage? I am guessing that the path of least 
> > resistance seems to be 
> > > straight to the pipes in ground and presumably not 
> > through the ground 
> > > wire into the fuse box and connected appliances, 
> > although I could be 
> > > wrong. 
> > > 
> > > Most of my 'sensitive' electronics like the TV 
> > and computers are all on 
> > > surge protected battery operated UPS units -- I'm 
> > not so worried about 
> > > frying electronics as I am the risk of electrocution. 
> > > 
> > > Could I put an RF choke on that ground wire? What 
> > about simply 
> > > disconnecting the AC ground wire while the coil is 
> > running? Should 
> > > I bite the bullet and tear up the yard and make a nice 
> > ground? 
> > > 
> > > Are there any easier ways of making an RF ground that 
> > don't involve 
> > > pounding rods into solid clay? 
> > > 
> > > Thanks in advance, 
> > > 
> > > -Jeremy 
> > > 
> > > 
> > > 
> > > 
> > > 
> > > _______________________________________________ 
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> > 
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> 
> 
> 
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