2x Generator - survival gadget #diy #diyprojects #electronic

In this video, I have made a simple but very useful survival gadget using basic electronic components. I am using a 3V LED plate powered by a 20F super capacitor (two 10F, 2.7V super capacitors connected in parallel). The super capacitor is charged from multiple energy sources. First, I made a hand generator using a gearbox and replaced the original motor with a 6V CD player DC motor. This motor can generate up to 8V while rotating, so I added a bridge rectifier at the output. Because of the rectifier, the voltage polarity remains correct whether I rotate the handle clockwise or anticlockwise. I also connected a 6V / 100mA solar panel directly to the super capacitor, so the capacitor can be charged using sunlight as well. To run the LED at very low voltage, I used my previously made 1.5V radio regenerator / Joule thief type circuit using three BC547 transistors. This circuit allows the LED plate to glow even when the super capacitor voltage becomes very low. This project works as a small survival energy system – hand power + solar power + energy storage + low-voltage LED lighting. It can be useful during power cuts, outdoor activities, or emergency situations. If you like such real and practical electronics projects, don’t forget to like, share, and subscribe to Electric Dhamaka.