[Elecraft] [K2] No Transmit Power

Brian Denley b.denley at comcast.net
Wed Sep 1 22:57:56 EDT 2010


Don:
The Key Down voltages on Q5 were completely normal:
E: 0.547 V
B: 1.274 V
C: 10.26  (12.0 volt power supply)

I also checked the voltages  from D1 through Q11 (page 17 or Appendix F) and 
they are vall OK except that the base voltages from Q6, Q7 and Q8  are close 
to zero when they should read 1.1, 0.6 and 0.6 Volts respectively.

It seems Q5 is working OK but how do I know any signal is comping into that 
amplifier?

The only oddity I have run into is that I read the opposite voltages for Q11 
than the manula states i.e I got:
E: 1.2 V
B: 0.6 V
C: 0
This was with key down.
I have stared at the device again and again to see if I am reading it 
backwards but I cannot find my error so far.

Thanks for any help.
Brian
http://home.comcast.net/~b.denley/index.html 



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