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Re: [Amps] Parasitics & Filament Sag

To: "R L Measures" <r@somis.org>
Subject: Re: [Amps] Parasitics & Filament Sag
From: "Michael Tope" <W4EF@dellroy.com>
Date: Mon, 4 Sep 2006 22:05:10 -0700
List-post: <mailto:amps@contesting.com>
----- Original Message ----- 
From: "R L Measures" <r@somis.org>

> On Sep 4, 2006, at 2:03 PM, Michael Tope wrote:
> 
>>
>> ----- Original Message ----- From: "R L Measures" <r@somis.org>
>>>>> shows  that it is resonant about 7% lower in frequency.
>>>>>   If an L-network was resonant on the operating frequency,    
>>>>> infinite  current would flow through it because the reactive   
>>>>> components are  equal, opposite, in series, and not in parallel.
>>>>
>>>> Rich,
>>>> Unless the effective parallel R across each component is zero,
>>>> this can't happen.
>>> What caused the dip?
>>
>> Even a resonant circuit with finite loaded Q will store energy and  
>> cause a dip. There is no need to invoke an infinite Q resonance to  
>> have a dip.
> 
> This argument has become much adoo about virtually nothing.
> 
>> 73, Mike W4EF........................................
>>

Perhaps, but your claim that infinite current will flow if an L-network
if it is tuned to resonance at the operating frequency is simply incorrect.
If that were true, tuning an amp would be a lot more dicey than it is. 

73, Mike W4EF.....................................


 

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