This ESR Meter I made it somewhere in 2007, and now I have only made the box still miss him to make him a mask. A lot of it is accurate and now for now is doing great. I made it from magazine Emiter 6nr 2004 year, the PCB can be bought from the magazine [...]

Just wanted to wish you all a Merry Christmas, Happy Holidays, or a Happy whatever you are celebrating at this time of year.

If you dont have some idea how to organize your electronic workbench you can get it from here, my friend D-r Avramovski Petar writer for magazine Emiter   has sent to mi  beautiful pictures from his electronics laboratory. So enjoy.. Thank you Petar.

How to convert ATX power supply into a bench supply.The power supply is based on an old pc ATX power supply. This is great because they are cheap, efficient and provide a huge amount of current on demand. He add an external voltage probe and a switch to allow voltage measurements either from the ammeter [...]

Tehnikservice.net completes three years of its existence today. We have a long way to go together. I have planned many new features, products and services also new category repairing section from tehnikservice.net – some of them would be launched soon, and some would take a couple of months. But I assure you that all of [...]

This project is a floor lamp that can take the color and brightness as desired. Adjusting the brightness of each group is provided by a generator whose frequency is fixed but whose duty cycle (temporal relationship between high and low) is variable, much more efficient than setting current variation in LEDs. It consists of a [...]

Logitech’s latest product is a wireless keyboard with an integrated solar panel.The product, which is Logitech’s first light-powered keyboard, can work in total darkness for up to three months and will charge up from artificial light sources such as lamps. The Wireless Solar Keyboard K750 is powered completely by the sun and will even work [...]

This video is made by  Karl Von Moller and is called “State of Electronics” – A discussion on the Electronics Industry in Australia. The discussion is focused initially on the world of Hobby Electronics and how it’s decline could effect the Electronics Industry in the future. The Documentary then discusses many issues that face industry [...]

This application is tested only with Samsung Galaxy GT-i5700 Spica (rooted Android 2.1 OS, i570EXXJD1 Baseband version). The transmitter circuit uses Microchip’s dsPIC33FJ16GS504 for the analog-to-digital conversion of the input signals on two channels. The processed data on the dsPIC are then transmitted to the phone (for waveform display) via the LMX9838 bluetooth SPP module. [...]

Serial RS-232 (V.24) communication works with voltages (between -15V … -3V are used to transmit a binary ’1′ and +3V … +15V to transmit a binary ’0′) which are not compatible with today’s computer logic voltages. On the other hand, classic TTL computer logic operates between 0V … +5V (roughly 0V … +0.8V referred to [...]

This is a very simple circuit to make using a 555 component and is recommended for the electronics beginner. The idea is to have a flashing red led indicate that your car is protected. This device can protect your vehicle from potential thieves – it makes it look like your car has an armed alarm [...]