When you forget you charger,you can use this dynamo charger to charge the phone with your hand. I convert the dynamo LED flashlight into charger just adding bridge rectifier, capacitor and USB female plug.
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Infrared LEDs Protect Your License Plate Number from Police Cams
How To:
Hack a Vending Machine in 3 Easy Steps
How To:
Light a light bulb with a potato battery
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Recycle an old satellite dish into a WiFi booster
How To:
Make a DTV antenna & a steadicam
How To:
Fix Dead Lithium-Ion Batteries That Won't Hold a Charge Anymore
How To:
Eavesdrop from a Distance with This DIY Parabolic 'Spy' Microphone
How To:
Turn Any Wall Portrait into Your Own Personal Scooby Dooish "Eye" Spy Surveillance System
How To:
Build a weatherproof compact high gain WiFi antenna
How To:
Turn Your Android Device into a Customizable Thermostat for Your Home
How To:
Make a PVC Hand Pump to Move Water, Compress Air, & Create Vacuum
How To:
Extract an RFID chip from a card & make it wearable
How To:
DIY Stick Welder from Old Microwave Parts
How To:
Convert Your Old Apple iMac G4 into a Cable-Ready HDTV
How To:
Make a homemade fractal antenna for HD and digital TV reception
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Make a DIY vehicle immobilizer to stop car thieves
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Build a mini hovercraft with household items
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4 Comments
It should have been in more details. :/
not clearly understand
Superv ya
excellent work, but everybody dont know about recifier
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