[Elecraft] K2 rf gain control problem

Mon Aug 4 11:28:00 2003

Guy:
  This is not normal.  Your control is opening for a second while you turn 
it; the swiper is losing contact with the resistive material.  I had a 
similar problem.  Basically the control shaft deteriorated into small 
pieces, which messed things up.  You will almost certainly have to replace 
the control, which is a doable job.  Once you put a new control in place, 
it might be a good idea to place appropriately sized nylon washers between 
the knobs and the panel.  This keeps side torques from inadvertently being 
applied as you turn the knob that can cause the shaft to wear and self 
destruct.  I found just such nylon washers available in my neighborhood 
hardware store.  They are just the size and color of the knobs, and you 
don't even know they are there.

best wishes, and good luck,

dave belsley, w1euy

--On Monday, August 4, 2003 11:15 AM -0400 guy ghisu <[email protected]> wrote:

>  Hello Everyone,
>      I have a K2 #1880 with a very touchy rf gain control switch.When I
> turn the knob even slightly,the smeter goes all the way right.Also, the
> receive is muted completely.The muting lasts for about 2-5 seconds as the
> meter returns to the left.Could anyone  me help with this ,or is this
> normal.Vers.2.01 software is installed,AF audio pot mod and the SSB 2nd
> filter mod is installed.Can't remember when this started (after
> mods?).Any suggestions are appreciated.
> Thank You and 73,Guy kb3ckw
>
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----------------------------------
David A. Belsley
Professor of Economics