Category Archives: Anything

I adapted the collimator of the higher quality. The voltage 250 mA is enough to light a match. And there is no need to hold it long. The collimator was tore out from a copier. It’s quite good, that you can precisely … Continue reading →

At last I finished (2008.02) my torchlight project. I was looking quite a long time for good LED driver. When I found driver chip, I’ve lost all my white LEDs. So I used white LEDs from bad USB web cameras’. … Continue reading →

This is not up to date post (post date 2008.02) I rescanned DVB-T channels using areal antena and found some new stations. As my antenna is quite big I am receiving TV stations from some near cities. I find new … Continue reading →

At last I repeated experiment from youtube about burning DVD laser. I dissasembled old DVDRW drive. I noticed small crack in laser diode, so I removed the glass. As open laser is very prone to external damage, keep it from … Continue reading →

Maybe you noticed, that new home cinema systems, LCD/Plasma screens, receivers have very small amplifiers. Physically small. But the power output is quite big. And there is no big, heavy heatsinks on these devices. And no big transformers. At a … Continue reading →

This weblog entry is more interesting for Lithuanian readers. It is about our biggest internet provider and the problems related to DSL connection. Nice title? I am using cheapest DSL service at home. It is working only on evenings and … Continue reading →

WRT54G or WRT54GL is well known Linksys/Cisco Systems wireless router. It is famous for its third party firmware. But be aware, new model sold in shop are neutered, the ROM and RAM size are reduced. Look for version with “L” … Continue reading →

In one company I was forced to install several copies of Norton Antivirus 2008. This was retail version of software in nice boxes, and I needed to enter all registration-configuration data in every computer. At a first glance, everything is … Continue reading →

I am using small Hobby drill (cheap dremmel tool) t make holes in PCB. Recently I broke several high speed steel drills. I decided to explore, why the drills are broken. After some investigation, I discovered that drill is moving … Continue reading →

Just small note about the beauty of laser beam image. Laser beam is coherent light- the waves of the light are synchronized. So all theoretical effects of light can be viewed with naked eye. Here is the image of interference- … Continue reading →