Hobby DIY Electronics

This is a simple charger you can build for devices like iPod or iPhone. It works for ipod touch. It can be modified for any device. This may need no modification for devices that are charged using PC USB port. Power Electronic Circuits This is a… more »

Emergency Light for Portable Use. Note Charger and Battery not Shown. Design from Ludens 12 Volt fluorescent lamp drivers: Three schematics of 12 V drivers for 2, 8 and 20 Watt, plus a lot of explanations about fluorescent tubes. Use the drivers for… more »

I got a strange problem as i added more and more peripherals, the pc gave odd messages, "i cannot detect what you are doing" and things like that. I almost flipped trying to locate the culprit. The problem was not in any peripheral but in the USB port… more »