[Elecraft] Scratchy Pot Syndrome

Tue Aug 27 19:19:06 2002

Hi, Frank.  To answer your questions:

1.  Yes.  No removal of wires is necessary on the front panel board to do
the mod;

2.  My audio was as you describe before the mod; since doing it, I now have
to turn my pot up to maybe the 10 o'clock position for normal volume.
(Recently I've made a little "director" out of the list-recommended CD jewel
case at about a 45 degree angle from the plane of the speaker - works
nicely!).  The amount of audio hasn't changed much, if at all; just the
usefulness of the audio control.

I recommend the mod: I thought I had a dirty pot and was amazed with the
smoothness of things afterwards!

73,

Joe, W2RBA

> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of [email protected]
> Sent: Tuesday, August 27, 2002 6:41 PM
> To: [email protected]
> Subject: [Elecraft] Scratchy Pot Syndrome
>
>
> Hi Gang:
>
> Before getting starting this fall on the KPA100, I've wanted to
> install the
> scratchy pot mod to get that out of the way first.  I figure this
> is as good
> as time as ever but have a few questions not answered in the instructions:
>
> 1)  It's been a couple years since assembling my K2 and I don't
> recall if it
> will be necessary to remove the wires connecting the optical
> encoder when I
> separate the PC board from the front panel?  In other words, can
> the pc board
> be separated by only removing the knobs and encoder hardware
> without removing
> these wires?
>
> 2)  Unlike many on the list, my K2 has really exceptional audio
> gain.  If I
> just crack the pot open it pretty much blasts me out of the room.   Even
> running it at 9 o'clock is too loud for me.  Obviously gain has
> never been a
> problem.  I'm wondering after the mod, will I end up running the
> audio at 12
> o'clock?  I realize that the mod eliminates the problem of leaky
> audio coming
> through when the pot is at its minimum but I'm wondering if the
> overall gain
> is going to be negatively impacted?  Any input appreciated.
>