Ted,
Not Q7 and Q8 in the base K2, but for the KPA100, yes tightening the
screws for Q1 and Q2 should be done after 5 to 10 hours of operation at
greater then 50 watts.
73,
Don W3FPR
On 10/27/2017 11:15 PM, Dauer, Edward wrote:
I vaguely remember reading somewhere that after some number of hours of
operation – maybe 50 – the hardware holding Q7 and Q8 onto the heat sink should
be tightened, I presume to maintain good heat conduction from the tabs to the
sink. But I can’t find that instruction in the manual now. Anyone know where
I might have gotten that notion, or did I just make it up?
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