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[AMPS] The G2DAF Amplifier; Intents and Purposes

To: <amps@contesting.com>
Subject: [AMPS] The G2DAF Amplifier; Intents and Purposes
From: 2@vc.net (measures)
Date: Sun, 26 Mar 2000 22:55:36 -0700
>
>Well, it has been tried, with no success. Could be that then the tubes were
>used and had little emission left as they were pulls from FM transmitters.
>A new tube might work. But 170W i a 'lotta' drive for no reason.. 

With a grid bias of c. 120v in Class AB and a 50-ohm termination 
resistor, 170w is what it takes to make a bit of grid current.  .  The 
170w goes mostly into the termination.  

later, Peter
>
>
>
>At 14:34 2000-03-26 -0700, you wrote:
>>>At 10:53 2000-03-26 -0700,  Rich wrote:
>>>>
>>>>>
>>>>>Today, perhaps there are just a few reasons to use the G2DAF circuit.  One
>>>>>would be to experiment and the other would be to use surplus tetrodes
>which
>>>>>might not be usable in grounded grid.  
>>>>
>>>>Please name one.  thanks
>>>>
>>>
>>>The QBL 5/3500 does not work in GG, believe me. 
>>
>>According to the data sheet, the QBL 5/3500... works well in AB 
>>grid-driven service.  It should do about 3 out.  With a 50-ohm grid 
>>termination, 170w will drive one.  
>>
>>cheers, Peter
>>
>>-  Rich..., 805.386.3734, www.vcnet.com/measures.  
>>end
>> 
>
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>


-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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