[Elecraft] K2 - noisy AF & RF Gain Controls

[William Eric McFadden]

Hello, Don.

Thanks for the quick reply.

I will open my K2--which is well below S/N 3000 and which wasn't built by
me--and determine if the Alternate AF Gain Wiring Mod has already been
performed. I will also order the two pots and install them when I perform
the mod.

I was happy to see in the reply from K2XT that the pots aren't
expensive--thanks, Rick.

Tnx es 73,

Eric, WD8RIF
http://home.frognet.net/~mcfadden/wd8rif/radio.htm

> Yes, the most likely problem is a faulty pot on both the AF Gain and the
> RF Gain.
>
> You are probably referring to mention of the Alternate AF Gain Wiring
> Mod.  If your K2 serial number is greater than 3000, it is already
> installed, but if your serial number is below that, you should change
> the wiring of the AF Gain control.
>
> That wiring change reduces the DC current flowing through the pot - and
> that wiring change will *not* cure an already noisy pot, but it will
> keep a good pot in good condition longer.