Cooked K2/PA100 with PSK

Posted by TI2/NA7U on Jun 01, 2010; 9:08pm
URL: http://elecraft.85.s1.nabble.com/Cooked-K2-PA100-with-PSK-tp5128043.html

I was running my K2/100 at 40W during PSK and the heat sink was too hot to touch (ooops!). Now it has the following symptoms of sickness:

- in CW mode key down it generates either 100W or 10W when in high or low power mode respectively. In other words, always outputs maximum power.
- in SSB mode it won't put out more than 20W and only if I drive the audio pretty hard. I only do this for a second or two, not trying to make things worse =^)

I need advice on how best to organize my triage of the problem, where to look first, second, etc. I'm handy with tools, DMM, and at following instructions. :)

TIA,

Casey