17
b. As you hold the LED in this position from the outside of the tube, carefully heat up the end of
the tube with your soldering iron until it closes around the LED leads (39,40). Once it has
stopped shrinking but while it is still very hot, use your pliers to pinch the shrunken tubing
closed around the leads to help seal the opening (41,42).
40
41
42
c. Slide the LDR into the other end of the heat-shrink tubing until it is touching the LED (43).
Rotate the LDR so that its leads are on the same plane as the LED leads (44).
43
44
