Too much solder, too little solder, cold joints, dry joints, failing to “wet” the joint properly, a plethora of terms are explained if you read one of the many online guides to soldering.

Cold soldering defects in a PV module. The problem has now become the most commonly found defect in pre-shipping module inspections. Image: CEA The electric grid is complex. For many generation ...

When we first saw this 1944 US Office of Education film about hand soldering, we figured it might still have some good information. Well, perhaps it does, but the 1944 soldering was with a giant ...