Good news - I replaced the thermal pad between heat spreader and case with good old Thermalcote heatsink goo, and it made a huge difference. Case heats up right away and things cool off fast after TX. Did a lot of checking before lunch, all good. Then I went for a break.
Bad news - U6 failed when I powered up again for final checkout before taking it off bench and hooking to rig. Zero output. Quick check showed nothing getting past SGA7489. It just died. Am wondering if this device was on its way out while I was testing, might explain power drops. I've ordered replacements from Digi-Key. Thanks for the input from several of you off list. 73 VE3MSC Colin ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
