Re: [TCML] Treating RF feedback

[<pterren@xxxxxxxxxxxx>]

A few things I (think) I have learnt:

Always use a Faraday cage indoors. It saves tears probably more from 
preventing capacitative pickup than RF.

I suspect the greatest killer of equipment is capacitative pickup resulting 
in currents trying to get to earth, not electromagnetic radiation.
This is why you get little zaps when you touch metal near a Tesla coil.

Use a counterpoise if there is any doubt about the earth adequacy.  I use a 
counterpoise on my biggest and my smallest coil for this reason.
Tesla coils don't radiate much (and I very much doubt 1000W as someone on 
this thread suggested).
My largest counterpoise was about 30x20m when there was no available earth. 
Ran hot 7 foot sparks at many kW along with a 3m partial wall.

Peter
Tesladownunder.com


-----Original Message----- 
From: Brandon Hendershot
Sent: Thursday, March 21, 2013 7:19 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Treating RF feedback

Good news everyone! I've finally managed to avoid interfering with any
other appliances this time around! I'm almost positive that there was EMI
getting absorbed into the excess extension cord for the blower that was
left near the coil. That, or I had neglected to elevate the power cables
away from the counterpoise. Either way, I won't be making either of those
mistakes ever again, and hopefully there won't be any more mistakes to
correct here on out.

On an unrelated note, shouldn't I be expecting a bit more than a 15.5" arc
to a strike rod running a 15/30?

Thanks for the support as always,
Brandon H.
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