Re: [TCML] Grounding a Tesla Coil (Yes, Again)

[jimlux <jimlux@xxxxxxxxxxxxx>]

Brandon Hendershot wrote:
> This is the link to that webpage I was telling you about: 
> http://www.textfiles.com/science/rqexps_t


It's unclear in Richard Quick's description whether his counterpoise was 
below the coil, or at some distance.  If it's at some distance, then, as 
he noted, you will charge the counterpoise.  His counterpoise is also 
quite small: 2.5-4 square feet, vs a typical recommendation of a minimum 
of a circle with radius = topload height. I'll bet his counterpoise is 
comparable in size to his topload.

Richard only gives the diameter of his secondary (4-6"), and while he 
was a fan of short fat coils in general, that still makes his coil at 
least 2 feet tall (not counting the height above the ground, on his 
rolling cart, which is another couple of feet probably)...

Based on that, I'd say a reasonable counterpoise would be a 4 foot 
radius, or about 50 square feet, some 20 times the size of the one he 
experimented with.


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