Problem mounting D25 (MV209) K2

[KC9QQ]

I am currently in second stage of assembly of the RF board.  After soldering D23, D24, D25 and D26 I noticed that D25 is not flush with the board.  It is sitting above the board by about 1/16th of an inch.  I reheated the two solder joints and try push the diode flush to the board, but it seems as if it is being held up by some sort of burr on the lead.  I have been reluctant to use the solder wick to remove and re-install the diode for fear that I might overheat and damage the diode.  My questions are: 

1.  Is this 1/16" gap on D25 significant if the other diodes are flush?
2.  Should I take the risk and remove and remount D25? or
3.  Should I move forward with the construction and wait to see how the system performs before I attempt to re-mount D25.

Fred, KC9QQ


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[Don Wilhelm-4]

Fred,

Do it the easy way and leave it the way it is.  Pushing all components
down tight against the board is not a good idea because it can break the
leads or fracture the case.  There is no harm in mounting parts such as
transistors and varactors with the body 1/16 to 1/8 inch above the board.

73,
Don W3FPR

Fred Keller wrote:

> I am currently in second stage of assembly of the RF board.  After
> soldering D23, D24, D25 and D26 I noticed that D25 is not flush with
> the board.  It is sitting above the board by about 1/16th of an inch.  
> I reheated the two solder joints and try push the diode flush to the
> board, but it seems as if it is being held up by some sort of burr on
> the lead.  I have been reluctant to use the solder wick to remove and
> re-install the diode for fear that I might overheat and damage the
> diode.  My questions are:
>
> 1.  Is this 1/16" gap on D25 significant if the other diodes are flush?
> 2.  Should I take the risk and remove and remount D25? or
> 3.  Should I move forward with the construction and wait to see how
> the system performs before I attempt to re-mount D25.
>
> Fred, KC9QQ
>

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[KC9QQ]

Thanks Don,

You have eased my mind.

Fred, KC9QQ

On Thu, Jan 22, 2009 at 8:18 AM, Fred Keller <[hidden email]> wrote:

I am currently in second stage of assembly of the RF board.  After soldering D23, D24, D25 and D26 I noticed that D25 is not flush with the board.  It is sitting above the board by about 1/16th of an inch.  I reheated the two solder joints and try push the diode flush to the board, but it seems as if it is being held up by some sort of burr on the lead.  I have been reluctant to use the solder wick to remove and re-install the diode for fear that I might overheat and damage the diode.  My questions are: 

1.  Is this 1/16" gap on D25 significant if the other diodes are flush?
2.  Should I take the risk and remove and remount D25? or
3.  Should I move forward with the construction and wait to see how the system performs before I attempt to re-mount D25.

Fred, KC9QQ

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