[Elecraft] Audio Pot Problem

[Steven Pituch]

 Hi all,
My K2 #402 (KPA100/KAT100/KSP2) is just incredible.  I can't believe my
basic K2 is 6 or so years old, and never had a major problem with it.  The
more I use it the more dependable I think it is.  Its not just that you can
repair a K2 if it goes down, they just never seem to break or need
adjustment.

Anyway this rig has one quirk I really want to correct.  I have done all the
Elecraft recommended mods to this thing.  I was a bit hesitant to do the
audio mod since I previously had plenty of it, but did that mod and also
replaced all of the pots (5) on the front panel.

Well since the mod, and replacing all of the pots, the audio is very touchy
near the almost off position about 8 o'clock.  I have lived with it but
noticed a few weeks ago that if I wiggled the audio pot the audio could be
knocked down a lot,  almost to an inaudible level.  I also noticed at that
time that I thought I might have had a grounding problem since when I went
to adjust the keyer speed the volume would fluctuate.

Well I played with it some more and it seems that whenever I "push" on the
audio knob or the _keyer_ knob the volume goes way down. Yes the keyer knob
affects my audio.  I am thinking to take the front panel off (again) but
might order a few pots again before I do.  I can't believe the pots are bad.
I wonder if I missed a solder connection.  Any ideas?

Also, on Sunday I made my first two RTTY contacts.  That was really cool.  I
used MixW, and have the K2 filter buttons and a centering command on the
menu.  The RTTY mode really makes the filters work nice when you center the
audio and DSP filters on your audio frequency.  I still don't know what is
the correct maximum output in the RTTY mode!!!!  I have gotten conflicting
advice.  I am use a muffin fan on the heat sink.

Steve, W2mY/5

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