[Elecraft] K2 - Resonate noise on audio

[Jason V]

Thanks Phil.

My wife is IPC-7711/7721 and had her inspect my work when it was complete,
so pretty confident there.  That and I rechecked it several times since the
problem began. Removed the old crystals, cleaned up the vias with
solderwick, re-installed using insulator pads, and soldered the ground tab
to the side of the crystal approce 1/8" above the base.  All the cans
measured for continuity to the ground plane.  Have a metcal soldering
station and it makes working in dense layouts easier, not to mention temp
controls.  No one is perfect though so I could pull the KSB2 and put a few
jumpers in it's place.  The problem will either follow it or stay.
 
No.  Wish I had stopped to check the K2 mods first.  Usually I take an
incremental approach to this kind of thing but since I had the radio all
apart I did them while I was in there.  So I don't know exactly when the
problem was introduced.
  
   



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