HowTo-Color (8) / Hacking Electronics / Simon Monk / 236-3 / Chapter 10
CHAPTER 10: Mending and Breaking Electronics
241
A magnifying glass is sometimes useful, as is taking a digital photograph and then zooming in to a high magnification. Having found some kind of identifying mark, type it into your favorite search engine. Bipolar transistors can also be tested (see the section “How to Use a Multimeter to Test a Transistor” in Chapter 11). However, if you have a spare, it is often easier just to replace it.
Desoldering
Figure 10-5 Using desoldering braid
There is definitely a knack to desoldering. You often have to add more solder to get the solder to flow. I find it quite effective to draw the solder off onto the tip of the soldering iron, which I keep cleaning using the sponge. Desoldering braid (Appendix – code T13) is also quite effective. Figure 10-5 shows the steps involved in using desoldering braid to remove the solder from around a component lead so it can be removed.
(a)
(c)
10-ch10.indd 241
(b)
(d)
1/15/13 12:35 PM