[Elecraft] k2 vco alignment problem

2009-10-28 Thread af4lb
I finally got my k2 #05233 completed and started the alignment process. I ran into some issues and decided to go back and re-check the tests for phases I and II. The tests during their construction were all ok and on the money. This time when I got to the VCO alignment stage the following

[Elecraft] K2 VCO Alignment problem

2009-10-23 Thread Robert Greenwalt
Hi I've worked my way through assembling my k2 and I've reached a problem: Everything seems fine until the 4000 kHz, R30 - 6V alignment of L30. I can only reach 5.65V. I have verified D23-26 are the right part, oriented correctly. I have verified D21-22 are the right part and oriented

Re: [Elecraft] K2 VCO Alignment problem

2009-10-23 Thread Don Wilhelm
Robert, Spread or squeeze the turns of T5 and see if the voltage increases by that means - overshoot the 6 volts a little and do the final adjustment with L30. If the problem persists, check the capacitor values in the VFO Range Select area - see te schematic to identify the capacitors