Ed, If you're noticing some scatchiness in the AF
gain, there is a better way to deal with that --
if you have not already. I did the AF pot fix last
year in K2 #380 and it made big difference.
Info is here:
http://www.elecraft.com/Apps/K2_AF_pot/K2_AF_gain_app_note.htm
but this may have been the wiring in yours as built.
Phil W7OX
On 2/10/15 7:53 AM, Don Wilhelm wrote:
Ed,
If it ain't broke, don't "fix" it. The most
probable controls to wear out are the AF gain
and the RF gain, and if you use it a lot, the
RIT control. Wait until they get scratchy and
then replace.
Rather than trying for a temporary fix with
DeOxit or other compounds, I suggest you simply
replace the controls that are bad. What usually
happens is that the carbon trace that the wiper
runs on becomes pitted with use, and for that
there is no good cure other than replacement.
Besides, the pots used are rather tightly
sealed, and I don't think you could get any
spray inside where it would do any good. Unlike
the old unsealed pots of yesteryear.
Elecraft has replacement parts - I buy parts
from them often, but then I repair a lot of
Elecraft gear - one or two each day is not
unusual for me.
73,
Don W3FPR
On 2/10/2015 2:19 AM, Eddy via Elecraft wrote:
Greetings all....I just realized my K2 (#
3500+) is getting old, I can't remember exactly
when I bought the kit from Elecraft, but at
least 12-13 years ago.
So, as things begin to wear out, any
suggestions on what to clean, as in different
front-panel POT controls that and suggestions
what to use to clean them? I have used Detoxit
and it seems to work very well.......
Thanks all........73
ed - k6sdw
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