I suppose we all like to improve what we have. This is a road to progrsss
The folks at Elecraft have proven themselves to be first class engineers.
They must have done a worst case design and thermal analysis. I would put
some faith in them. We can of course install a squirrel cage blower atop the
K3 and most of the radio will stay close to ambient temperature but then the
noise will rival the QRN on the bands. Many electronic components are made to
run at high temperatures. A maximum junction temperature of 175C is not out
of line. Of course a heat sink gets hot but if the design is conservative
enough then all is okay. Start opening the sides of the case and RFI screenig
will be reduced. You are also likely to reduce the resale value of your
radio. Not that one would sell a K3. This is just another take and
questioning is part of what we should all do.
73 Doug EI2CN
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