[Elecraft] KPA500 & Drake TR7

[ab2tc]

Hi again,

True, but the TR7 is all solid state, including the finals. See here:

http://www.wb4hfn.com/DRAKE/DrakeArticles/InsideTheTR7/Inside_The_TR7-01.htm

According to that article Drake claims 130-150W output for bands at above
20m and 60-100W on 80-15m.

Boy, is that transceiver ever jam-packed! Wonder how it does cooling-wise.

AB2TC - Knut


K9MA wrote
> On 1/13/2019 12:35, ab2tc wrote:
>> With typical efficiencies seen in solid state PAs it is probably rated at
>> no
>> more than 100W output,
> 
> Actually, tube amplifiers can be quite a bit more efficient than solid 
> state ones. The theoretical limit for class B is around 70 percent, a 
> practical limit probably around 60. So, the TR7 might put out 150 W.
> 
> 73,
> 
> Scott K9MA
> 
> -- 
> Scott  K9MA

> k9ma@

> 
> <snip>





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