Jim Wiley wrote:
When assembling the KPA-100, is it permissible to use standard
zinc-oxide filled heat sink grease and mica insulating washers in place
of the supplied silicon-rubber washers? It seems to me that the grease
option wouldn't require re-torquing because any "flow" would happen
immediately when the transistors are snugged down to the heat sink.
First of all, the transistors don't need to be insulated from the heat
sink, so you wouldn't need the mica washers. Second, Elecraft has said
that they do not recommend using heat sink compound because the plastic
sheets that they use do a better job of ensuring heat transfer.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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