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Modeling a magnifier




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From:  John H. Couture [SMTP:couturejh-at-worldnet.att-dot-net]
Sent:  Sunday, March 08, 1998 3:16 PM
To:  Tesla List
Subject:  Re: Modeling a magnifier

At 05:32 PM 3/7/98 -0600, you wrote:
>
>----------
>From:  bmack [SMTP:bmack-at-frontiernet-dot-net]
>Sent:  Saturday, March 07, 1998 11:59 AM
>To:  Tesla List
>Subject:  Re: Modeling a magnifier
>
>
>
>> From:  Antonio C. M. de Queiroz [SMTP:acmq-at-compuland-dot-com.br]
>> Sent:  Wednesday, March 04, 1998 1:52 AM
>> To:  Tesla List
>> Subject:  Re: Modeling a magnifier
>> 
>Antonio,
>    The magnifier is a very interesting subject and somewhat of an 
>inigma. Not the least of which being the difference between coiler's
>empirical results and the CSN.  Tesla noted that all three systems
>were the same resonance, but no one on the list (as far as I know) has
>a magnifier working in this mode.  Perhaps there is an energy level and
>geometry that that forces this?
--------------------------------------------------------------

  Tesla also said that the secondary was acting in the transformation mode.
This means it was not in resonance and the pri/sec voltage was the same as
the turns ratio of the windings.   JC

--------------------  Snip

>> With high coupling between the primary and the secondary, all or most of
>> the primary energy is transferred rapidly, essentially to C2-L2 only
>before
>> the spark gap is quenched. 
>> After this, the energy oscillates between the two tanks,
>> and periodically is entirely concentrated on C3, producing the highest
>> possible voltage allowed by energy conservation (ignoring losses).
>>  
>> I don't know what more experienced coilers do, but the model indicates
>that
>> there is an optimum value for C2.

----------------------------------------------------------------

  Could you explain the above in more detail. I'm confused about the energy
oscillating after the gap is quenched.  JC

--------------------------  Snip

>   No, but then again I wasn't using a gap, mostly CW drive to observe
>the resonant frequency.   You must be looking for the beat frequency
>against L1C1  to obtain the modulation-right?(JM)

------------------------------------------------------------------

  Note that the true TC uses dampened waves instead of CW and the peak
voltage is higher. The peak voltage of a dampened wave can be much greater
than a CW wave with the same energy. This could mean a longer spark. Also
note the peak voltage does not occur at the same time as the sine wave.  JC

-------------------------------------------------------------------
 
>> Antonio Carlos M. de Queiroz
>> http://www.coe.ufrj.br/~acmq