Three days ago, I noticed that mine non commercial web paged didn't have any rank. One month ago the ranks was 5. Now it is 0. I entered “site:" command in google search and didn't received any answer. I checked more and discovered that whole domain is deleted from google. There were more than thousand […]
When I was using my old computer I wrote software to read ISO 7816 (synchronous) telephone cards. The software was for very old and very nice Amiga computer. 10 or more years passed and I rewrote software for very big, very powerful computer running Windows XP. This software is based on older and smaller software. […]
Sometime you need to connect some device to computer and check how it works. It is possible to use printer port for digital scanner and logical analyzer. If using standard print port (SPP) there is 8 output lines and 5 input lines. If using enhanced printer ports all data lines are multidirectional. You can read […]
As mentioned in previous post, I am examining my energy saving lamps. I am still reverse engineering the schematics of GE lamp. But I found in internet some schematics that looks like real schematics of chinese made lamp.
May contain errors
Few words about the schematics. Rectifier B1 and capacitor C4 is standard. Just making DC from […]
Your computer worked for few years and suddenly it reboots in random time moments. And one day you'll don't start it. What is the problem? Maybe it is the capacitor problems? Open computer case and examine the caps (Aluminium cylinders with plastic coating. Aluminum capacitors are relatively large compared to other board mounted components, and […]
Everybody know that interesting energy saving lamps. It uses regular socket, but looks like fluorescent bulbs. They consumes less power, but produces more light. So called “Watt equivalents". These bulbs use fewer watts than a regular incandescent bulb while producing the same intensity of light, in most cases. Because most people are familiar with the […]
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