Larry,
You did it right. The recommended 6 volts at 4 MHz is just a starting
point, and per the non-K60XV K2 instructions, it could be as high as 7 volts
if that is required to bring everything else into range.
When the K60XV is added, the extreme points are normally 5.300 MHz (which
will usually be the low voltage end) and 4.000 MHz (which will usually be
the high end of the voltage scale). If you get 4 MHz tuned with less than
7.5 volts and 5.3 MHz tuned with more than 1 volt, all other band ends will
usually be well within spec. Of course, if you can get the voltage range
with a few tenths of a volt on either end to spare, that is better - I find
most K2s with the K60XV can be set for about 6.5 volts at 4 MHz and the 5.3
mHz point will be 1.3 volts or above with all other band edges also within
that 1.3 to 6.5 volt range. Of course all that depends on the exact values
of the capacitors in the VFO Range select circuit - some may be a bit higher
than nominal while others may be lower. I have found if you want to get
everything closer, you can experiment with some 'capacitor tweaking' and get
things closer, but it is not necessary in all but the most extreme cases - I
have only had to resort to that once in all the K2s I have dealt with, and I
have installed somewhere between 15 and 20 K60XVs now.
73,
Don W3FPR
> -----Original Message-----
>
> I experienced the same low voltage problem when I installed the
> K60XV. I measured just
> over .8 volts on the low end and about 1.2 volts on the high end.
> I checked both C71
> and C73 and found them to be the correct value. As the manual
> seems to suggest, I
> increased the voltage on the low end to just over 1 volt. This
> increased the voltage at
> 4000 KHz to just over 6.2 volts. Although slightly higher than
> the K2 manual originally
> indicated, this compromise placed all the voltages within the
> acceptable range of 1 -
> 7.5 volts. It appears this adjustment is necessary on at least
> some K60XV installations.
>
>
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