Soldering Iron powered by 2 AA Batteries. Works really well and quickly.
You will need:
- 2 x syringe
- 2 AA Batteries
- Choc Block
The syringes are used as battery holder and also as a body of soldering iron
The circuit is created by switch and needles, where thanks to short circuit the heat is generated.
Check how to assemble it in this really great DIY project video.