K3 VFO converter/Knob

[K7TV]

For the first year or so after assembly my main tuning knob just made a very
faint noise that was smooth and consistent. However, beginning around last
Field Day, the knob has tended to stick in certain spots, accompanied by
much louder noise. This happens only when I press on the knob, as is always
my habit. (I use one finger on the edge of the know rather than using the
dimple.) I just took the knob off. The felt washer looked normal. After I
put the knob back on, it behaved in the same way. My theory is that some
grains of dirt have found their way into the felt. I guess it is time to
replace the felt washer with the second one that came with the kit, or ditch
the friction altogether.

 

73,

Erik K7TV

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[Claude Du Berger]

Thanks for your info Erik.
Here, even after removing the knob and felt washer, turning
the shaft with my fingers make the same noise. Maybe I am not lucky
and will have to change the converter ?..

73 de VE2FK

  ----- Original Message -----
  From: Erik Basilier
  To: [hidden email]
  Sent: Wednesday, November 24, 2010 9:35 PM
  Subject: [Elecraft] K3 VFO converter/Knob


  For the first year or so after assembly my main tuning knob just made a very
  faint noise that was smooth and consistent. However, beginning around last
  Field Day, the knob has tended to stick in certain spots, accompanied by
  much louder noise. This happens only when I press on the knob, as is always
  my habit. (I use one finger on the edge of the know rather than using the
  dimple.) I just took the knob off. The felt washer looked normal. After I
  put the knob back on, it behaved in the same way. My theory is that some
  grains of dirt have found their way into the felt. I guess it is time to
  replace the felt washer with the second one that came with the kit, or ditch
  the friction altogether.

   

  73,

  Erik K7TV
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html