[Elecraft] [K2] VCO Aignment L30

[Don Wilhelm]

Andrew,

While those ranges will work, I usually like to see the lowest voltage a 
bit higher than 1.6 volts.

Set the frequency that produces the highest voltage (4000 kHz) and 
spread the turns of T5 a bit to increase the voltage at R30.  I would 
suggest that you try setting it to about 6.5 volts.  Then go back and 
see how much the voltage at 7000 Hz has increased.

73.
Don W3FPR

On 12/30/2012 7:09 AM, andrew wrote:
> K2 #7303 is slowly coming together and I thought I would check with the list the results of the VCO Alignment (Page 64).
>
> With the core of inductor L30 wound right to the top, the lowest voltage achieved is 6.1v and the ranges are as follows:
>
> 80m = 2.29 - 6.10
> 40m = 1.594 - 3.115
> 30m = 3.253 - 3.84
> 20m = 3.01 - 4.97
> 17m = 3.71 - 3.94
> 15m = 2.456 - 3.638
> 12m = 4.92 - 5.37
> 10m = 3.91 - 4.88
>
> Is it okay to continue with these results? I've rechecked the component placement and T5 winding.
>