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[AMPS] parasitic suppressors

To: <amps@contesting.com>
Subject: [AMPS] parasitic suppressors
From: measures@vc.net (Rich Measures)
Date: Thu, 11 Dec 97 03:02:22 -0800
>
>On Wed, 10 Dec 97 15:52:09 -0800 Rich Measures <measures@vc.net> writes:
>c 
>>>
>... ...   Do the test before you whine about it
>please. 
>
-  1A at 28mHz in #16ga is not significant.  

>I suspect that you really do not understand RF 

I would not say that 1A at 28mHz in #16ga is a serious source of heat.  
>
... ... ...
>Damped Ringing....is this a new phrase for you....haven't heard that one
>before except maybe in a pre 1940 QST.  

When DC current is pulsed through an L-C circuit, damped ringing occurs 
at the resonant frequency.  This is how spark transmitters produced RF.  
.  .  Damped wave ringing is discussed in the October, 1988 *QST* and 
September/October 1990 *QST* articles on intermittent VHF parasitic 
oscillations.  
>  
>>
>>>Too bad; but that is still just a minor parasite....
>>
>>  no parasite, just damped ringing of an L-C resonant circuit.  
>
>Like maybe ding a ling?
>
Yes.  That's pretty much what it looks like on an oscilloscope.  
... ...
>>-   The current path from the alleged anode/grid vanishing-gas arc is 
>>not through the bias zener.  However, with a parasitic oscillation, =
>>the fault current path would be through the bias zener.  
>
>
>Hey danceman....Parasitic or RF Bang...same path amigo...comprende??
>
I comprehend that it is not the same path.  An anode to grounded-grid arc 
does not pass through the cathode circuitry.  It passes through the meter 
shunts to the negative HV return. 
Rich... 


R. L. Measures, 805-386-3734, AG6K   


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