[Elecraft] KX3 tuning knob friction

[Don Wilhelm]

Phil,

Going back to the K2 days, a fully free-spinning VFO knob is not 
desirable, if the knob is bumped in any way (or even drumming fingers on 
the table), the frequency can change.
I can't say that the KX3 is exactly the same as the K2, but if you hold 
the KX3 so the encoder shaft is vertical and drop the knob onto the 
shaft by its own weight, then tighten the setscrews, the tension will be 
correct.  You can vary from that based on your preferences, but that is 
as good a starting point as I can offer.

Yes, I agree about the finger dimple - I do not find it usable (but part 
of that is "just me" - I just hold my tuning finger on the edge of the knob.

73,
Don W3FPR

On 6/9/2012 7:36 PM, Phillip Shepard wrote:
> I got my KX3 kit (s/n 268) earlier this week.  I had a few day pause in
> building it while I waited for a couple of missing parts to come from Aptos.
> I finished it today.  It's a beautiful little rig.  The only thing that I
> have noticed so far that I am not wild about is that the VFO A knob (main
> tuning) is stiff.  Even with essentially no contact between the knob and
> felt washer, the knob will not "free" spin.  It takes enough torque to
> rotate it that there is even a tendency of the rig rocking a bit as the
> finger dimple is turned.  It won't continue to rotate after my fingers come
> off of the knob.  Is this normal, or do I have an encoder with "issues"?
> Thank you.
>
> 73,
> Phil, NS7P
>
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