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Re: Damages to Electronic Equipment



Hi Ruud,

At 04:38 PM 02/15/2000 +0100, you wrote:
>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.

Moderators cannot be offended ;-))

If the base of the secondary, strike rails, filters, etc. are not very well
and effectively grounded against RF, the radiation can be dramatic.  The AC
wiring may tend to become a ground path if there is not a good REAL RF ground.

>
>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'.

Chicken wire is good for arcs since it does prevent them from going
further.  I wonder what the skin depth of that wire is like and if the very
high frequency 10MHz, 100MHz, and GHz+ noise frequencies will be conducted
or just radiated off it.  Maybe they will be absorbed???  I am not sure.
Perhaps your setup can answer this for us.  Looking forward to seeing what
you find.

>
>Btw, arcing of the secondary coil is a big load and will therefore 
>reduce RF radiation.

The arc to ground currents are very high so you get powerful EMI pulses...


Welcome to the list!!

Cheers,

	Terry


>
>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!
>> 
>snip...


References: