[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Tesla Coil RF Transmitter



Original poster: Ed Phillips <evp@xxxxxxxxxxx>

"Evidence?

I vaguely recall a number more like 1000uF, but I don't see it in books
in
my collection.

Lets try calculating:

  Area / Platespacing * 8.9e-12 = farads

  4 * PI * 6,400,000^2 / 100,000 * 8.9e-12 = 46,000 uF

To get 250,000uF the insulating part of the atmosphere would have to be
only 12 miles thick. "

	I agree with this. except I get a little over 11 instead of 12.  I was
using the SA book value without checking it.  Your value is only 0.046
farad, about 1/5 what I said.  Implications for world power just as
serious, of course.  I'll send you an Excel spread sheet with all the
numbers worked out.  You can put in your own values for everything and
output the power, etc.

Ed