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

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 K3/10

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

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 u