K3 PA Temp Max (was Re: [Elecraft] K3 Noisy fans?)

Eric Swartz - WA6HHQ, Elecraft eric at elecraft.com
Tue Dec 9 18:08:22 EST 2008


We're good to at least 85C (which is still below the max temp for the 
transistors) where the firmware will automatically drop the 100W amp out 
of line to protect it.

You can run all day below that level.

73, Eric  WA6HHQ


Jeff Wandling W7BRS via K3List wrote:
>
> I'm glad someone brought this up.
>
> My question is:  What is the safe temp range for the KPA3?  I can get 
> the PA temp up to 56C at full power (100W).  Fans are of course on 
> full-bore at this point and I still can barely hear them.
>
> At what PA Temp do I need to be concerned?
> I'm using the K3/100 with the KAT3
>
> -jeff
>


More information about the Elecraft mailing list