[AMPS] parasitic suppressors

[Rich Measures]

>
>On Fri, 12 Dec 97 08:36:06 -0800 Rich Measures <measures@vc.net> writes:
>
>>>No, of course not - for example, I argue strongly against EIMAC's
>>>recommendations for "linear" operating condx for the 4CX250R.
>>
>>Which are?
>
>I suspect what is missed here is that the Eimac recomendations in spec
>sheets, etc are strictly a guide line for competent users; there is
>nothing that says this or that MUST be used. They give you the maximum
>operational parameters and then it is up to the user. Real users call and
>consult if they have a question. Hams just assume they can run everything
>at the max and then whine later.  
>
I run a pair of 4cx250Rs at the max. ratings on 2m SSB.  The anode supply 
is around 2400v, and the screen is regulated by a 400V zener string.  
With 10w of drive the gain is 20db.  There is zero grid current.  I have 
had no tube failures.  
-  How do you run 4CX250Rs, Ian?



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


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