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Re: Tesla Coil RF Transmitter
- To: tesla@xxxxxxxxxx
- Subject: Re: Tesla Coil RF Transmitter
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Sat, 10 Sep 2005 19:06:16 -0600
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Original poster: d a <btoc3000@xxxxxxxxxxxx>
"what is the business end of a tesla coil? answer: the ground plate!
Tesla was transmitting energy by pumping a charge into the ground itself"
Can you elaborate on this?
Tesla list <tesla@xxxxxxxxxx> wrote:
Original poster: "Dan"
I have to disagree with you on this. Tesla never said he was
transmitting out the topload, and this was not merely that he did not
know what he was talking about. Trick question: what is the business
end of a tesla coil? answer: the ground plate! Tesla was transmitting
energy by pumping a charge into the ground itself. As a matter of
fact, if you read his later writings, he was trying to keep RF losses
to a minimum. He would usually say that his coils dissipated about
10% energy in RF, and 90% energy through the ground.
Your assertion that if you put a 1230 foot antenna on the thing, it
will transmit, is half right. The coil, all by itself, without an
antenna, will transmit if it is properly grounded.
----- Original Message -----
From: Tesla list
Sent: Friday, September 09, 2005 12:46 PM
Subject: Re: Tesla Coil RF Transmitter
Original poster: Terry Fritz
Most early radios were basically Tesla coils. At say 200kHz, the 1/4
wavelength is 1230 feet. If you put a 1230 foot antenna on your
Tesla coil, it will transmit. Although real transmitters are far
better matched to the 50 ohm antenna load... But the key is our
coils have very poor transmitting properties due to being so small
compared to the length of antenna needed for our frequencies of operation.
At 08:57 AM 9/9/2005, you wrote:
>How does a Tesla coil actually function like a RF Transmitter?
>Is it due to the fact that at the secondary topload, the frequency
gt;of the output is very high - so much so that RF are produced?
>Can anybody introduce me a website that summarises the principles of
>Tesla Coil (in say, 10 lines or less)? Most of the ones I came
>across are really lengthy..
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