On 5/3/2018 9:55 AM, Bob kb8tq wrote:
Hi
You *really* need to keep the baseplate of the FRK series devices down. Their
reliability drops quite a bit
as you go from 40 to 50 to 60 C on the baseplate. I would avoid boosting the
input voltage without a very
good heatsink ( or heatsink + fan ) setup.
I just measured mine after about two hours of warm up, the case sides
(which also are a sort of sink) measure around 33C, and the rear heat
sink around 34C in a fairly chilly (17C :^) ) southern California room.
I don't think it's ever going to cook the FRK which has been working
when needed, as I just discovered, since 2001.
Dan
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