If it is is urgent to solder some items at home, but the soldering pencil is not work. Don't worry, you can make a soldering pencil with a few simple items. First, you need to prepare two needles, a wooden clip, a metal tab and a 9V battery.
First, remove the needle from the syringe. You can also replace it with other wires.
Then, take the wooden clip apart, and tape the needle to the sides of the wooden clip. Twist one of the needles and to make it touch the other.
Next, take out the metal tabs and wrap the wires around the two pins respectively.
After that, the 9V battery was wrapped around the wooden clip with tape, and a simple electric soldering pencil was completed.
Finally, the metal tabs were attached to the battery and it was soon visible that the two needles at the front began to glow red. At this time, when the solder is in contact with the needle, the solder is melted instantly. It is really a nice soldering pencil.
Source from: Rouding.com
Translated by: Utsource
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