Voltage/Length (fwd)

To: "'Tesla List'" <tesla-at-pupman-dot-com>
Subject: Voltage/Length (fwd)
From: Tesla List <tesla-at-stic-dot-net>
Date: Mon, 26 Jan 1998 21:19:19 -0600
Approved: tesla-at-stic-dot-net

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From:  John H. Couture [SMTP:couturejh-at-worldnet.att-dot-net]
Sent:  Monday, January 26, 1998 2:44 PM
To:  Tesla List
Subject:  Re: Voltage/Length (fwd)


  Malcolm -

  You may be right. Let's get back to reality.  How would you measure the
"no- infinity" impedance of the pick up ball in oil or air?  What percentage
of secondary voltage drop do you think it would cause on a Tesla coil ?

 I would like to give the calculations a try. Have you ever tested for the
TC secondary voltage and made the necessary calculations ? How do you do the
calculations? In another post I  mentioned that even the 1000 meg divider I
tried drops the sec voltage too much. However, Jim Monte's extrapolation
test is a good possibility. What do you think?

  John Couture

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At 11:46 AM 1/26/98 +0000, you wrote:
>
>----------
>From:  Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
>Sent:  Sunday, January 25, 1998 3:45 PM
>To:  Tesla List
>Subject:  Re: Voltage/Length (fwd)
>
>All,
>      This talk of infinities is ringing alarm bells for me:
>
>> From:  John H. Couture [SMTP:couturejh-at-worldnet.att-dot-net]
>> Sent:  Saturday, January 24, 1998 11:34 AM
>> To:  Tesla List
>> Subject:  Re: Voltage/Length (fwd)
>> 
>> 
>>   Bill, All -
>> 
>>   The Tuve et al 5 million volt TC "pick up ball" method for measuring the
>> secondary voltage is unique in that it offers infinite impedance. This meant
>> no loading on the secondary circuit. Because the sec wiring was so small any
>> loading would have made it impossible to measure the sec voltage.
>
>    It is impossible to measure something without loading it. A well 
>established principle known as the Heisenberg Uncertainty Principle 
>has a lot to say about this. Only the degree to which the measured 
>item is loaded is in question. 
>
>    Secondly, this talk floating around about infinite output 
>impedances is garbage.  Is the Q of your coil finite or not??
>
>Time to get back to reality I think.
>Malcolm
>
><snip>
>
>
>