K1 100k Pot

[W2BJ]

The 100k pot for VFO tuning broke yesterday.  It really looks strange.  The
back is broken off.  I have heard that there is a better pot with a metal
shaft.  Could someone tell me where I can get one?  Thanks!

Sorry for the duplicate mail, but I mistakenly attached the last one to
someone else's message.

72/73,Barry J. Minsky, W2BJ ARRL, QRP ARCI #8871,
NorCal #1560, QRP-L, FISTS #2701, Century Club
#569, Platinum #51, Silver #119, FISTS CW Club of
Coastal Georgia, Knightlites, Adventure Radio
Society #359, QCWA #29298, OOTC #3723, SOC #193,
K2 #577, K1 #98, KX1 #69, Rock Mite

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[Mike Morrow-3]

Barry wrote:

>The 100k pot for VFO tuning broke yesterday.  It really looks strange.  The
>back is broken off.  I have heard that there is a better pot with a metal
>shaft.  Could someone tell me where I can get one

Hi Barry,

Something must have struck the VFO knob and pushed it into the panel.

For the metal shaft replacement pot that many have used, go to

http://www.mouser.com and enter

652-3540S-1-104

in the part number search box at the top left side of the web page.  You'll
get a page where you can get all the particulars on this item.  Mouser
doesn't have a minimum order requirement.  The current part price shown is
$13.50, and expect about $3.50 shipping.

I personally did not find there to be any **significant** difference between
the stock VFO pot and this metal shaft replacement with regard to
smoothness, noise, wobble, etc., though others have reported improvement in
those characeristics.

73,
Mike / KK5F

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[Mike Morrow-3]

Barry wrote:

>The 100k pot for VFO tuning broke yesterday.  It really looks strange.  The
>back is broken off.  I have heard that there is a better pot with a metal
>shaft.  Could someone tell me where I can get one

Hi Barry,

Something must have struck the VFO knob and pushed it into the panel.

For the metal shaft replacement pot that many have used, go to

http://www.mouser.com and enter

652-3540S-1-104

in the part number search box at the top left side of the web page.  You'll
get a page where you can get all the particulars on this item.  Mouser
doesn't have a minimum order requirement.  The current part price shown is
$13.50, and expect about $3.50 shipping.

I personally did not find there to be any **significant** difference between
the stock VFO pot and this metal shaft replacement with regard to
smoothness, noise, wobble, etc., though others have reported improvement in
those characteristics.  In your case (replacement of a damaged pot), I
suppose all that is of no concern.

73,
Mike / KK5F


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[W2BJ]

On 8/7/04 2:47 PM, "Mike Morrow" <[hidden email]> wrote:

> Barry wrote:
>
>> The 100k pot for VFO tuning broke yesterday.  It really looks strange.  The
>> back is broken off.  I have heard that there is a better pot with a metal
>> shaft.  Could someone tell me where I can get one
>
> Hi Barry,
>
> Something must have struck the VFO knob and pushed it into the panel.
>
> For the metal shaft replacement pot that many have used, go to
>
> http://www.mouser.com and enter
>
> 652-3540S-1-104
>
> in the part number search box at the top left side of the web page.  You'll
> get a page where you can get all the particulars on this item.  Mouser
> doesn't have a minimum order requirement.  The current part price shown is
> $13.50, and expect about $3.50 shipping.
>
> I personally did not find there to be any **significant** difference between
> the stock VFO pot and this metal shaft replacement with regard to
> smoothness, noise, wobble, etc., though others have reported improvement in
> those characteristics.  In your case (replacement of a damaged pot), I
> suppose all that is of no concern.
>
> 73,
> Mike / KK5F
>
>
>

Thanks, Mike.
I just ordered one.  I think the problem was in the pot.  Although it
worked, the shaft would slide out about 1/2 inch and would change frequency.
It finally broke.  Thanks for the information.

72/73,Barry J. Minsky, W2BJ ARRL, QRP ARCI #8871,
NorCal #1560, QRP-L, FISTS #2701, Century Club
#569, Platinum #51, Silver #119, FISTS CW Club of
Coastal Georgia, Knightlites, Adventure Radio
Society #359, QCWA #29298, OOTC #3723, SOC #193,
K2 #577, K1 #98, KX1 #69, Rock Mite

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