[Boatanchors] 813s push pull Triode Connected Bias question.

[Paul Baldock]

I don't lnow how it sounds as I have yet to connect it to the RF PA, 
but it looks good on a scope.

- Paul

At 06:26 PM 4/22/2015, KA4INM wrote:
>   Hi  Paul  KW7Y Baldock:
>
>>I just fired up my new  Modulator, driving a 10K resistor instead of the
>>PA. It works well except the efficiency is low. The HV is about 2500V.
>>Idle current is about 60mA (150W). Efficiency at 400W RMS output is 42%
>>as calculated by plate voltage times cathode current.
>
>>Does this seem typical for this configuration?
>
>   I would expect ~50% in real life.  Considering you may not be using
>lab equipment for your measurements it doesn't look to bad.
>How does it sound?
>--
>   Ron  KA4INM - Youvan's corollary:
>                 Every action results in unwanted side effects.


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