The initial re-tightening seems to be all that is required. I believe the thermal pads will slightly thinner after an initial period of being exposed to the pressure from the initial tightening and that normal 'squeezing' process may be shortened by the thermal cycling. I have not been able to torque my KPA100 screws any significant amount after the first re-tightening (the first time WAS significant).
If my theory is correct - anytime the thermal pads are replaced, one should do the re-tightening just as on a new KPA100. 73, Don W3FPR Life is what happens when you are making other plans > ----- Original Message ----- > > I haven't noticed any looseness in mine since tightening them a few months > after the initial build, and I did some testing of the "drift" mods that had > me cycling the K2 finals over and over again hard enough that the heat sink > was too hot to leave my hand on for any length of time. > > So I'd guess that you're fine, now that you've done the initial > re-tightening. > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
