[Elecraft] K2 raspy side tone

[Don Wilhelm]

Jacob,

If the AF Gain is scratchy when turned, the best cure is to replace it.  
Those small pots are sealed, and I doubt that you could get any DeOxit 
into the body of the control.  Even if you can get some inside the pot, 
the "cure" will not be long lasting, you will eventually have to replace 
the pot, so 'bite the bullet' and do it now.
The carbon (or other material) that forms the resistive layer over which 
the wiper rides can become pitted and work with extended use - there is 
no way to fix that other than replacement.

73,
Don W3FPR

On 1/21/2016 10:53 AM, Jacob Chambers via Elecraft wrote:
> Hello;
> I have an older K2 that has developed a raspy, scratchy sounding CW note on receive. All bands affected. The transmit sidetone is clean as a whistle. Headphones or external sparker are the same. Seems like there is some popping and scratching when I bump or play with the AF gain control. Could that be it? And I'm thinking of spraying with DeOxit contact cleaner. Is that OK? Thanks!
>