[Elecraft] Problem mounting D25 (MV209) K2

Don Wilhelm w3fpr at embarqmail.com
Thu Jan 22 09:22:54 EST 2009


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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