Is this true ?? Where did you get the info Terry ??
73 and thanks
Jim W7RY
-----Original Message-----
From: Terry Gaiser <w6ru@lightspeed.net>
To: rakefet@rakefet.com <rakefet@rakefet.com>
Cc: Amps reflector <amps@contesting.com>
To: <amps@contesting.com>
Date: Wednesday, February 24, 1999 12:24 AM
Subject: Re: [AMPS] Tube rating question
>
>The Eimac data sheet for the 3CX800A7 was an after thought. The tube had
>been developed and rated at 1370 watts output with "typical" operation
>at 2500 volts at 800 ma. THEN the FCC changed the power limits to 1500
>watts OUTPUT and Eimac then changes the ratings on the tube for 2200
>volts at 500 ma. operation and 750 watts output which is what the
>technical data sheets show.
>Terry W6RU
>
>Vic Rosenthal wrote:
>>
>> Eimac's data sheet says that the 3CX800A7 has a plate dissipation of 800
watts.
>> But then they say that it '...will deliver 750 watts PEP and 750 watts
keydown
>> CW output to 350 mHz'.
>>
>> I don't think they're talking about class A, are they? If an amplifier
were 65%
>> efficient, I would expect to be able to get around 1200 watts from this
much
>> plate disssipation. What am I missing here?
>>
>> 73,
>> Vic, K2VCO
>> Fresno CA
>>
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>
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>
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