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Re: Damages to Electronic Equipment
Hello Terry,
I'am a little troubled with your statement:
"Find a very good ground for the Tesla coil. This will insure that the
RF has a place to go."
Sorry to maybe offend you, but I think that is not a very scientific
approach to explain electromagnetic phenomena. In fact grounding
the Tesla secondary will insure better radiation of RF energy. That
is the reason that transmitters and receivers are grounded.
In my opininion there is only one way to coil at home and that is
with a Farady cage and ofcourse RF filters. I'am sure planning to
mount chicken wire on all my garage walls and ceiling and ground
it. I will give a report on measured radiation when I'am done. (Give
me a couple of months, I'am still collecting 'Tesla stuff'.
Btw, arcing of the secondary coil is a big load and will therefore
reduce RF radiation.
Ruud de Graaf
Greetings from lovely and wet Holland
Date forwarded: Mon, 14 Feb 2000 21:16:12 -0700
Date sent: Mon, 14 Feb 2000 21:16:02 -0700
To: tesla-at-pupman-dot-com
Subject: Re: Damages to Electronic Equipment
Forwarded by: tesla-at-pupman-dot-com
From: Tesla List <tesla-at-pupman-dot-com>
> Original Poster: Terry Fritz <twftesla-at-uswest-dot-net>
>
> Hi,
>
> Very glad you computer is still around!
>
> I have blown a telephone answering machine (AT&T) about 20 feet away. I
> can set off a CO2 detector 25 feet away. So the EMI off a Tesla coil can
> go far. It does not matter if there are walls or floors in the way.
>
> When I run a lot of power, I remove ALL the wires from the computer so it
> is just a metal box. Any wires leading into it are ways for nasty signals
> to get conducted to it. All those long wires between things are very
> likely to pick up RF so they need to be disconnected from anything your
value.
>
> Find a very good ground for the Tesla coil. This will insure that the RF
> has a place to go.
>
> A good line filter (I use three) and MOVs (Metal Oxide Varistors,12 of
> them) to filter and clamp any AC line strikes. I do use a scope and
> sometimes a laptop near my coil. The scope is just darn tough and I run
> the laptop off batteries. I also have a cheap printer. I realize I am
> taking a risk with these and I accept that.
>
> I cannot explain or predict every last detail of how to protect everything
> in your situation especially over E-mail. Basically, you need to get any
> wires that come within say 20 feet of the coil removed or disconnected from
> the computer. This includes AC, LAN, phone, etc. A chicken wire cage may
> go a long way here but it must not be connected to the ceiling and such.
> It would almost have to be in it's own cheap wood frame. If it were hooked
> to the ceiling and grounded, it may only act like a transmitting antenna
> and could make matters worse.
>
> I would think about making the coil fairly portable and finding another
> nice safe location to run it. Tesla coils are nasty and when they do
> decide to destroy electronics, the damage is "bad".
>
> Cheers,
>
> Terry
>
>
> At 09:40 PM 02/14/2000 -0500, you wrote:
> >do i have any probs. running only a 7.5kv-at-30ma nst tesla
> >coil?interferencewise?
> >
>