Charger for Portable Devices
This is a simple charger you can build for devices. It can be modified for any device. This may need no modification for devices that are charged using PC USB port.
Category: Contraptions
Mains Powered China Emergency Bulb
A typical Mains Powered China Lamp. On power down, LED light turns on for around 1/2 hr. Gets damaged on lightning activity and wide (uS not nS) transients above 300V. Drawing may have error.
Torch or Flashlight Circuit Improvements
I fixed a China Torch with New LEDs and a Diode, it failed probably on a drop shock, the battery wire cut … then when put on charge Few LEDs went bad, as battery...
Mains Adapter 230V AC 50 Hz to Rectified DC
Mains Adapter Converts 230V AC 50 Hz to Rectified DC which replaces a Battery Pack. It was also called Battery Eliminator by older generations as it was used to save Battery Cost in AM...
LED Flashlight made out of a China Lamp
LED Flashlight made out of a China Lamp that was busted on a High voltage surge during a Thunderstorm. I got many LED lamps, mainly from china. The Chinese Entrepreneurs are Creative and Adventurous....
Nomadic Research Labs and Steve Roberts
The story and evolution from Behemoth to Microship, water-type HPVs. microship.com. Technomadic goodness. Nomadic Research Labs and Steve Roberts Online Store for Technomadics Surplus Kayaking Books Parts Sensors Nautical Controllers GPS Trackers Geek-free Zone...
Noisebridge – Tech Art and Creative Learning
“As a space for artistic collaboration and experimentation, we are open to all types of art – with a special emphasis on the crossover of art and technology.” – Noisebridge “Noisebridge is inspired by...
Electronics Lab – Electronic Hobby Projects
Electronics Lab – Electronic Hobby Projects Here you can find useful circuits with full description, diagrams and PCB, electronics articles, links and downloads. The electronic hobbyist corner, projects, kits, schematics, pcb, free electronic software...
