[Elecraft] K2 - Dead Q7!

[David Heinsohn]

  It's a sad day at KD0R.  #6708 is in the hospital.  I noted this 
afternoon that there was only 0.1 w shown as output during TUNE.  And 
the outboard power meter was not wiggling.  I read the manual, then 
opened things back up to inspect.  When I got the heat sink off the 
problem was obvious.  Q7 was in three pieces!  At not time did I get a 
CAL CUL, or other over current message.  CAL CUR was set to 3.5 per page 
90.  I've been running at 5 w and seeing no more than 10 w during TUNE 
as I adjusted the antenna tuner. 
  R50 checks out fine. 
  At some point the K2 popped the 5 A circuit breaker on the RigRunner.  
I'd not noticed that I'd plugged into on of the smaller breakers on the 
Rig Runner.  not thinking much about it I moved it to a 10 A circuit.

  So what other stuff should I check before I call CA on Monday?  And 
what other parts, if any should I order along with Q7. 

  Pictures of the failed Q7 in situ are available.

de

KD0R
David