Elecraft

[KX3] KXPD3 intermittent keying

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Cady, Fred
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[KX3] KXPD3 intermittent keying

Cady, Fred
My KXPD3 started to give some intermittent keying.

Here is my theory:
The connection between the paddle arms contact to the ground that needs
to be closed to complete the circuit is through the pivot pin at the
back of each paddle arm. The pivot pin has one end that is necked-down
and has not been ground to a bright finish. In my paddle, that end was
in the bottom and, I believe, was making intermittent contact. I
reversed the pins, putting the shiny end down and, so far, that seems to
have cured the problem.
I have a picture of the pin in question on my website:
www.kex.com and click on KXPD3 Paddle Intermittent

Cheers,
Fred KE7X

Fred Cady
"The Elecraft K3: Design, Configuration and Operation"
 

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T Gahagan-2
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Re: [KX3] KXPD3 intermittent keying

T Gahagan-2
The website should be www.ke7x.com

-----Original Message-----
From: Cady, Fred
Sent: Wednesday, November 14, 2012 9:12 AM
To: [hidden email]
Subject: [Elecraft] [KX3] KXPD3 intermittent keying

My KXPD3 started to give some intermittent keying.

Here is my theory:
The connection between the paddle arms contact to the ground that needs
to be closed to complete the circuit is through the pivot pin at the
back of each paddle arm. The pivot pin has one end that is necked-down
and has not been ground to a bright finish. In my paddle, that end was
in the bottom and, I believe, was making intermittent contact. I
reversed the pins, putting the shiny end down and, so far, that seems to
have cured the problem.
I have a picture of the pin in question on my website:
www.kex.com and click on KXPD3 Paddle Intermittent

Cheers,
Fred KE7X

Fred Cady
"The Elecraft K3: Design, Configuration and Operation"


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ke9uw
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Re: [KX3] KXPD3 intermittent keying

ke9uw
The picture of the pin seems really dark...is it really shiny? Just the lighting? I need to look, but I think my pins are very shiny, and I don't remember any tapered end (they are late issue).

Sent from my iPhone
Chuck (Jack)

On Nov 14, 2012, at 10:55 AM, "T Gahagan" <[hidden email]> wrote:

> The website should be www.ke7x.com
>
> -----Original Message-----
> From: Cady, Fred
> Sent: Wednesday, November 14, 2012 9:12 AM
> To: [hidden email]
> Subject: [Elecraft] [KX3] KXPD3 intermittent keying
>
> My KXPD3 started to give some intermittent keying.
>
> Here is my theory:
> The connection between the paddle arms contact to the ground that needs
> to be closed to complete the circuit is through the pivot pin at the
> back of each paddle arm. The pivot pin has one end that is necked-down
> and has not been ground to a bright finish. In my paddle, that end was
> in the bottom and, I believe, was making intermittent contact. I
> reversed the pins, putting the shiny end down and, so far, that seems to
> have cured the problem.
> I have a picture of the pin in question on my website:
> www.kex.com and click on KXPD3 Paddle Intermittent
>
> Cheers,
> Fred KE7X
>
> Fred Cady
> "The Elecraft K3: Design, Configuration and Operation"
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
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Chuck, KE9UW
Cady, Fred
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Re: [KX3] KXPD3 intermittent keying

Cady, Fred
Yes, the picture is not great. The pin is totally shiny (it is a ground
surface) except for the little end on the right in the picture.

-----Original Message-----
From: hawley, charles j jr [mailto:[hidden email]]
Sent: Wednesday, November 14, 2012 11:27 AM
To: T Gahagan
Cc: Cady, Fred; [hidden email]
Subject: Re: [Elecraft] [KX3] KXPD3 intermittent keying

The picture of the pin seems really dark...is it really shiny? Just the
lighting? I need to look, but I think my pins are very shiny, and I
don't remember any tapered end (they are late issue).

Sent from my iPhone
Chuck (Jack)

On Nov 14, 2012, at 10:55 AM, "T Gahagan" <[hidden email]> wrote:

> The website should be www.ke7x.com
>
> -----Original Message-----
> From: Cady, Fred
> Sent: Wednesday, November 14, 2012 9:12 AM
> To: [hidden email]
> Subject: [Elecraft] [KX3] KXPD3 intermittent keying
>
> My KXPD3 started to give some intermittent keying.
>
> Here is my theory:
> The connection between the paddle arms contact to the ground that
> needs to be closed to complete the circuit is through the pivot pin at

> the back of each paddle arm. The pivot pin has one end that is
> necked-down and has not been ground to a bright finish. In my paddle,
> that end was in the bottom and, I believe, was making intermittent
> contact. I reversed the pins, putting the shiny end down and, so far,
> that seems to have cured the problem.
> I have a picture of the pin in question on my website:
> www.kex.com and click on KXPD3 Paddle Intermittent
>
> Cheers,
> Fred KE7X
>
> Fred Cady
> "The Elecraft K3: Design, Configuration and Operation"
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net Please help support this email

> list: http://www.qsl.net/donate.html 
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net Please help support this email

> list: http://www.qsl.net/donate.html
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

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