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[AMPS] Power Transfer

To: <amps@contesting.com>
Subject: [AMPS] Power Transfer
From: measures@vc.net (Rich Measures)
Date: Fri, 16 Jul 1999 10:30:39 -0700


>
>I'll risk sticking my neck out again into the battle
>(I learned something last time)
>
>
>>>With half of the total P being dissipated in the
>>>generator, and half of the power being delivered
>>>to the load R, the efficiency is obviously 50%.
>
>
>Is it being suggested, in essence, that if an amplifier delivers (as per
>Bird wattmeter) 1500W RF to the coax, that due to the power transfer
>rule, the amp's tubes must be generating at least 3KW RF?  My HV and
>plate current suggest otherwise.

?  To get a handle on this, one has to look at instantaneous values of e, 
i, and p.  For example a 3-500z typically runs quite linearly at 1.2 peak 
amperes of anode current, so the peak world is a whole nuther ballgame, 
Mike.  .  



Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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