[Elecraft] KPA500 cooling and efficiency

[K9MA]

On 5/21/2018 23:18, ANDY DURBIN wrote:
> My KPA500 seems horribly inefficient when compared to my TS-590S running a similar power output.  The data for the heating test showed a PA efficiency of 23%, far short of the "approximately 50%" stated in the specification.

That's perfectly normal at that low power output.  The 50% spec is at 
full output.  If you ran your TS-590S at 20 W output, you would probably 
see about the same low efficiency.

73,

Scott K9MA

-- 
Scott  K9MA

k9ma at sdellington.us