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[AMPS] 4CX1000A advice??

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Subject: [AMPS] 4CX1000A advice??
From: (Rich Measures)
Date: Fri, 13 Mar 98 08:40:20 -0800
>I would also try and obtain schematics from Command, Emtron and any other
>company that is using the Svetlana 4CX1600B. There should be excellent
>information on no hassle input circuits, protection, etc.  
-  No hassle HF input circuits dismiss the importance of neutralization.  
 With a grid termination R of 12.5 ohms, no problem  With a grid 
termination R of 50 ohms, maybe no problem.  With a grid termination R of 
200 ohms, good luck.  With 450 ohms, enjoy the ride.  
-    Eimac says that neutralization can be important in grid driven 
linear service, and, as an added bonus, neutralization results in a 
virtually perfect input swr.   The neutralization circuit  is simpler 
than most folks seem to expect.  {Figure 5 at}


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

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