[Elecraft] K2 Q7 Blows Again

[Don Wilhelm]

David,

I am sorry to hear that happened at such a bad time for you.
If you have just been replacing Q7 when it fails, then having it fail 
again is quite likely.
Order the K2PAKIT from Elecraft and install all the transistors included 
- Q7, Q8, Q11 and Q13.  It is common for a PA transistor fault to damage 
Q11 or Q13 and if not replaced with the PA transistors, the bias will 
not be correct - and can cause a subsequent failure of the PA.

73,
Don W3FPR

David Heinsohn wrote:
>   I'm a bit frustrated!  Well actually more than a bit.  Q7 on my K2 has 
> blown again!  This is the third time it's blown.  In each case it's 
> blown after a period of normal operation.  This time the conditions were:
>   
>