Re: [Elecraft] [K2] Setting the AGC Threshold Section of Build

Thanks Don. CB checked out at 7.85v and removed resistor. Current drain test was good at .14a Best Don KF7DS Don Wilhelm wrote: >Don. measure the voltage at the output side of Control Board 4. It >should be in the vicinity of 8 volts. > >I would suggest removing the 15k resistor and checkin

Re: [Elecraft] [K2] Setting the AGC Threshold Section of Build

Don. measure the voltage at the output side of Control Board 4. It should be in the vicinity of 8 volts. I would suggest removing the 15k resistor and checking the voltage at CB U2 pin 5. If that voltage is 3.7 volts or more, that will work out just fine. If lower than 3.7 volts, add back t

[Elecraft] [K2] Setting the AGC Threshold Section of Build

I am finishing the first phase of my K2 build, and everything has gone well up to this point. All resistance and voltage tests are fine. When I went to set the AGC Threshold as per page 47 of the K2 Manual, I got 5.0 volts as the lowest setting I could achieve when adjusting R1 on the Control B