3x Battery Teardown article shows you what is inside different batteries. So if you open up a 9 V battery, you find 6 thin 1.5 V cells inside. But what was inside that lantern battery, the rechargeable PP3, or the funny shaped lump on the back of my laptop? Check 3x Battery Teardown article to see. If you →
40 ways to fix your PC before you call an expert gives useful tips troubleshooting PCs. Those tips could be useful to those who are regularly called upon as the ‘IT expert’ by friends and family whenever a computer goes bust. →
One key was damaged on my ACER 5552G laptop keyboard. The S key was literally falling apart every now and them (was damaged by too kid trying to pull the key out). Sending the laptop to repair center felt something that could cost quite a bit of money (usually this kind of problems are repairs →
Last weekend I repaired two unreliable radio remote controllers with contact spray. One of the remotes was for Nikko RC car and other was for mains outlet remote controlling (bought from Clas Ohlson). In the Nikko remote has small joystick like controls, but underneath them there was just small cheap buttons on the circuit board. →
You’ve heard about the “maker movement,” the geeks who’ve been rebooting America’s craft tradition. The same kind of movement is also happening in other countries, including Finland. Wired writes that We Need a Fixer (Not Just a Maker) Movement. We need to use our maker skills to something new: We need to apply those maker →
Fiber-optic testing: Keeping it simple in the field article tells in the telecommunications industry today, testing is one of the most confusing and misunderstood phases of installing a fiber-optic system. While misunderstood, optical-fiber testing is one of the final and most important procedures in installing optical networks. →
When a hard drive fails, there are many times that I’ve wanted to clone the data from the hard drive to a new drive to recover. I just recently had the situation on my home PC that the hard disk was starting to fail. It showed things like slowing down very much every now and →
I had been getting some intermittent noise from my Panasonic PT-AE900E video projector after some years of usage. It sounded like a dry bearing on a fan, but it turned out that it was iris that caused the problem. I decided to take a more look at this problems when I had time to change →
A suitable tool to safely discharge capacitors is needed when you want to work with circuits that have dangerous voltages inside them. Typical examples of such devices mains powered switch mode power supplies (you need to safely discharge main capacitor) and different cameras (the flash unit has a large capacitor charged to 400-500V voltage). Those →
In my posting War on DIY Electronics I already told that that the trend is that electronics is heading to be less and less hackable. Wired has an opinion article Forget the Cellphone Fight — We Should Be Allowed to Unlock Everything We Own that has many good points that I can agree on. USA →