My KPA100 has been apart many, many times, documenting various mods and upgrades for Elecraft. The first time I took it apart, the pads tore, with some parts sticking to the transistors and other parts sticking to the heatsink. It had been assembled and had many hours of very heavy operation and testing often raising the heat sink temp too much to want to leave my hand on it, so I wasn't surprised the pads were well bonded to the surfaces. The tearing wasn't a problem. When the heat sink was fitted to the transistors again, the sections of pads fit together to form a complete pad.
I guess it was after about dozen such separations and reinstallations that I finally damaged the part of a pad stuck to a transistor while working on the unit, so I replace them both. Ron AC7AC -----Original Message----- I need to replace the speaker in a k2/100, but it requires that the KPA100 PA transistors and the board be removed from the heatsink. Anyone aware of any issues with reusing the thermal pads? I really like thermal grease better, but since this is what it was built with, I'll stick with it. Just not sure if their effectiveness is dimished when reused. Thank you, Anthony, NT4X _______________________________________________ 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
