[Elecraft] KPA500 & Drake TR7

[Bob McGraw K4TAX]

If you can run 200 watts PEP with the TR7, why run a 500 watt amp?    
Otherwise, you'll need a 10dB attenuator between the TR7 and the 
KPA500.  Hence turn 180 watts of RF from the TR7 into heat as it takes 
only about 20 watts to drive the KPA500 to rated output.

73

Bob, K4TAX



On 1/12/2019 11:59 AM, Marcel Jorba via Elecraft wrote:
> Greetings from Barcelona
> I have here a K3-KPA500 setup that runs great
> I also have a TR7 and I am thinking about using it together with the KPA500 The obvious problem: The TR7 delivers a lot of watts (200 pep).
> Is it an idea to discard? Or is there any reasonable approach to? ALC control is not a good idea I think
> As an alternative (500-1000 W), is there any small (in size) linear to consider? I don't want to go back to the big tube linears. The KPA500 is great for what I want to have here.
> 73s de Marcel - EA3IN
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