[Elecraft] K2 7747 VCO alignment problem

[Keith Hamilton]

I am having trouble with the K2 VCO alignment. I have moved the T5 windings
and obtained 6 volts at the left end of R30. I then went on to the chart
(table 6-1) to measure the voltages at the listed frequencies. My readings
are ok on 80 40 and 15 meters (between 1.5 to 7.5 volts) but on 30,20,17
,12 and 10 meters the voltage is 8.29 volts and does not change.

I have checked the solder connections of T5 and the value of C72 (271). The
diodes D21,D22,D23, D24, D25 and D26 are correctly installed. I also went
over the solder connections of K13, K14 and K15.

Now I'm stuck. Any help will be appreciated.

Keioth Hamilton N8CEP