The source has the following characteristics • Tension of entrance: 220VAC • Tension of exit: 0 to 25VDC with a current of 0 to 2.5A. • Precision of the regulation • Thickness: 1V/100mA • Fine: 100mv/3mA • Use of microcontroller PIC 16F877A of Microchip leaving available for the use 10 ports. • Adjustment by means [...]

TRXCharger is a small however very efficient battery charger for nickel cadmium and nickel metal hydride Akkus. To be able to load it developed over with high rivers to the reflex load procedure individual Akku cells with good efficiency. The charging current can be given by means of in button operation in 15 steps (typically: [...]

Download: Notebook Sony Vaio IS200

Download: Service Manual SRT4155 & SRT4355

The purpose of this project is to realize a Solar panel controller. Initially developed for a sailing boat, the target to reach was to control the level of charge and discharge and to protect a 12 volts lead battery connected to a 32 watts solar panel. The project is based on a 12F675 and uses [...]

Download : Capacitor Calculator

Download: Sanyo PLC-SW20 multimedia projector

Fix any broken LCD backlight with an ordinary light bulb and a dead CRT monitor. Broken LCD monitors basically come in three categories: 1) Cracked LCD panel, rendering the unit completely worthless 2) Backlight problem 3) Power supply problem If it’s a backlight or power supply problem, it can be fixed. Usually, the problem stems [...]

Panasonic have been making some kick ass digicams recently, with ludicrously good features and optics for the prices. However, this comes somewhat at the expense of build quality. A commonly reported problem with the FZ5 is the lens becoming stuck in one position. This is because the cogs that drive it are made of plastic [...]

No programming or microchips! Robots, the most awesome thing there is, especially when allot of people can build it! Source: dunnos

Download: Pioneer DJM-300