Free Circuit Diagram

Building electronic circuit tutorial (DIY: do it yourself project) is presented in this video. You can learn the basics about schematics and how they are used in electronics in this free home maintenance video.

How to solder a resistor to PCB is presented in this video tutorial, get expert tips and advice from an expert on how to solder electronic equipment in this free instructional video. Expert: Jeff Nayl…

In this video tutorial,  you can learn how to make a LED flasher circuit using 555 IC. The project uses a breadboard, so you don’t need any soldering work. A good start for do it yourself  (DIY) project. [Video tutorial source: Youtube.Com]

A LED flasher circuit can be built using only one transistor and few passive components. This circuit is a proof of Negative Resistance (the Esaki or Tunnel Diode in from 1957) The Transistor is coupled / Biased in the Opposite polarity. [Video tutorial source: youtube.com]

This is a video of LED’s & Integrated Circuits Tutorial. This video shows how to make flashing box. to build a flashing box we need some tools and accessories, such as circuit board kit, UB5 size jiffy box, solder, soldering iron, and 9 DC battery. Before constructing the flashing box, we must plan about position [...]

Metronome is very important tool if you studying music playing. There are mechanical metronome device in the past, but today, electronic metronome is much more popular since it can be very simple, compact/small, reliable, and also has the most interesting feature: cheap. Here is one example of the electronic metronome schematic: Parts: [...]