Question on KX1 paddle mount

[John Evans - N0HJ]

Greetings,

   Before I do something stupid like strip the threads on the mount
hole, does anyone know what the thread size is ??  Metric or US? 4-40
perhaps?

tnx es 73 - john - n0hj
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[Don Wilhelm-4]

John,

That is threaded for 6-32.  Since you are apparently going to put a
screw into that hole that is something other than the paddle mounted
thumbscrew, I will offer a caution - Do NOT allow the screw threads to
extend inside any further than the depth of the threads.  If the screw
tip overlaps the edge of the board, it will damage a PC trace that is
quite close to the edge of the board just below the key jack.  I have
repaired several where that happened.  The usual symptom of that damage
is that the KX1 goes into transmit as soon as power is applied.

73,
Don W3FPR

On 1/7/2013 8:14 PM, John Evans - N0HJ wrote:
> Greetings,
>
>   Before I do something stupid like strip the threads on the mount
> hole, does anyone know what the thread size is ??  Metric or US? 4-40
> perhaps?

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[John Evans - N0HJ]

Thanks Don,

   I'll keep that in mind and be very careful as I plan to homebrew a
paddle set and mount it there.

73 - john - n0hj

On 1/7/2013 7:19 PM, Don Wilhelm wrote:

> John,
>
> That is threaded for 6-32.  Since you are apparently going to put a
> screw into that hole that is something other than the paddle mounted
> thumbscrew, I will offer a caution - Do NOT allow the screw threads to
> extend inside any further than the depth of the threads.  If the screw
> tip overlaps the edge of the board, it will damage a PC trace that is
> quite close to the edge of the board just below the key jack.  I have
> repaired several where that happened.  The usual symptom of that
> damage is that the KX1 goes into transmit as soon as power is applied.
>
> 73,
> Don W3FPR
>
> On 1/7/2013 8:14 PM, John Evans - N0HJ wrote:
>> Greetings,
>>
>>   Before I do something stupid like strip the threads on the mount
>> hole, does anyone know what the thread size is ??  Metric or US? 4-40
>> perhaps?
>
>

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