SOLDER PRACTICE (1)
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Read the pages on how to solder.
Using stripboard, fill every other row of holes with solder, as in this picture.


Don't allow the blobs to run into each other.Make the blobs all the same size and shape.
A good joint is smooth and shiny. See (a).
The solder must run along the copper track, not stand on it like a bead. (b)
A bad joint is unevenly shaped, dull and crinkly in appearance.(c)
If there are spikes on the joint, then you are taking too long to make the joint.
When you can produce good results proceed to the next part of the exercise.

Here, 22 swg wires have been added to the joints, along one edge.
This is done by REFLOW soldering.
The end of the wire is TINNED by heating it and allowing solder to run along it for about 3mm.
The tinned wire is held steady above the stripboard.
The solder blob is melted and the wire carefully lowered into it.
The iron is removed and the solder allowed to cool with a MINIMUM OF MOVEMENT!
Each joint must be done quickly but carefully.
The joint should still be smooth and shiny.


Copyright Graham Knott 1999