[Elecraft] K2 Won't power on

JeremyJones jjones9527 at gmail.com
Tue Feb 18 16:46:25 EST 2014


I don't know how much over 0.64 volts is bad, but I am getting 0.656.

I didn't realize that a web reply was cutting off what I was replying to.  I
always hit the reply button and assumed it included the original text.

Jeremy



Don Wilhelm-4 wrote
> Jeremy,
> 
> A power reading of 0.1, 0.2 or 0.3 is only residual noise on the power 
> detection circuits.  Since you do not have Q7 and Q8 installed, your 
> real power output is zero.
> 
> Yes, go ahead and change Q11 and Q13.  That is not certain to change 
> anything, but it will do no harm.
> A slightly lower than normal bias voltage for the PA transistors is not 
> a problem, but if it is higher than 0.64 volts, that is a problem that 
> should warn you not to install Q7 and Q8 until it is resolved.
> 
> 73,
> Don W3FPR





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