Hi Ray. One possibility might be improper assembly of the transceiver that is causing the transistors to not mate properly with the heatsink on the bottom chassis.
Been there... done that. :-) Here's the story behind repeated 2SC1969 failures in my K2 back in 2003, and the mechanics behind the cause: http://mailman.qth.net/pipermail/elecraft/2003-September/023145.html http://mailman.qth.net/pipermail/elecraft/2003-September/023307.html There were never any over-current issues, and it took several transistor replacements before I realized the problem was due to the incorrect placement of the lock washers associated with the 2-D fasteners. Good luck! 73, de John, KD2BD -- Visit John on the Web at: http://www.qsl.net/kd2bd/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
