Free Circuit Diagram

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…

This is a video tutorial of desoldering. This video shows the technique of desoldering the IC. The wrong technique will cause the overheating to the IC. There are two thing that are required to desolder the IC, they are solder and solder sucker. That would be easy if we use the solder in the left [...]

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]

This is a video tutorial of AND/OR gate. This video explains how the AND gate and OR gate works. AND gate has two input and one output. the rule of AND gate is when both input are “1″, the output is 1(on). The OR gate also has two input and one output but its rule [...]

This is a video tutorial about RJ45. This video shows how to punch down an RJ45 keystone jack using a impact tool. The first thing that we gonna do is strip the wire. It is very important because when we connect the wire, it can cause the problem. And then, put the wire on RJ45, [...]

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 [...]