Sunday, March 22, 2009

Armstrong Twin Construction



This is the board.  The first step in assembly is to populate it with components.  The directions aren't 100% clear but seem to indicate soldering components after each component type is placed in the board.  This view shows the first step with the diodes in and ready to be soldered.




As I was taught way back when the leads are crossed at about 45 degrees on the back.  This helps keep the parts in place before soldering and supposedly makes the joint more reliable.  You will also note some darks spots on the board.  That is excess flux but care is required lest you burn the board or worse yet cause the pads to lift from the board.





Of course I screwed up the very first joint (the large diode on the right mid board).  I had to remove this diode and replace it.  Fortunately the 1N24A is very common component and was available at the local Fry's.  




A close up of the sad corpse of the diode.

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