[Elecraft] KPA500 & Drake TR7

[Don Wilhelm]

Marcel,

Can you add a "Power Control" to the TR7?
It may be as easy as applying a constant negative voltage to the ALC 
input.  That constant ALC voltage will not cause the problems 
encountered when using the dynamic ALC voltage that is applied from the 
amplifier.

73,
Don W3FPR

On 1/12/2019 12:59 PM, 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