Re: [Elecraft] K2 Original problem of High Current and Low Power

2019-06-18 Thread Don Wilhelm
Jim, Your PA transistors had some collector to base leakage which increased the voltage on the base. The usual case is that the base voltage goes much higher and destroys Q11 and Q13, but it seems you are OK. I have seen that condition many times over the years (I have over 1000 repairs und

[Elecraft] K2 Original problem of High Current and Low Power

2019-06-18 Thread Jimithy66
Other problems discovered along the way with this partially assembled kit. Hi Don, Thank you so much for sticking with me on this. K2 #2438 Ver. A with no updates. I had measured 1.48V at bases of Q7 and Q8. (installed.) And as you suggested I removed the PA transistors and now measure 0.63