Author Archives: Administrator

About Administrator

I am owner of this site.

Nixie low voltage PSU

Posted on May 23, 2006 by Administrator

Sometimes I need small high voltage power supply for my projects. And I don’t want to make special transformers. And I don’t want to use special chips for it. In internet I found very simple circuit diagram for classical step-up … Continue reading →

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Tube datasheet book

Posted on May 17, 2006 by Administrator

My brother presented me old radio tube datasheet book. In his Antique Shop you can find interesting stuff and for electronics hobbyist. Also he gave me very old radio tubes dated 1920…1930 years! With very strange base connectors and heating … Continue reading →

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Magic Eye Tube

Posted on May 16, 2006 by Administrator

I found magic eye tube in my closet. It was removed from sold old radio. This tubes were used in old radio units to indicate fine tuning of radio station. In old tape recorders such tubes indicated recording level. I … Continue reading →

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Peltiers (TEC units)

Posted on May 12, 2006 by Administrator

In eBay I bough quite powerful Peltiers (TEC, Thermo-Electric Cooler) unit. According to description it is “TEC cooler – Thermal Enterprises model CP1-12726”. Specifications: Model CP1-12726 50mm x 50mm x 3.64mm 245 – 320 Watts of cooling power Operates from … Continue reading →

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3D and CadSoft Eagle

Posted on April 29, 2006 by Administrator

Recently I found plugin for CadSoft Eagle PCB software. Together with freeware ray-tracing software POV-Ray it produces 3D images of PCB boards. It looks like nice illustrations for PCB assemblage instructions. You can see how your board must look like. … Continue reading →

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Short Circuit!

Posted on April 24, 2006 by Administrator

Just few experiments in Mythbusters style. It is funny experiments with short circuits, high currents, flames and fumes. The voltage is lowered, but current is more than 200A. The test device schematics looks like this: welding transformer with fuse and … Continue reading →

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Dual monitor troubles

Posted on April 9, 2006 by Administrator

System: Windows XP Pro SP2, P4, PCIe system, Radeon X700 with dual output. Image on single monitor. Please remember the image ratio. When I move image to the left and the bigger part of the window is in the left … Continue reading →

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About myself

Posted on April 7, 2006 by Administrator

That’s me! Do you notice spot on the roof. Why german make so low cars… Here is flowers at my workplace. I watter then twice during winter. On summer time all flowers are placed outside and must feed by themselves. … Continue reading →

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New Toys

Posted on March 31, 2006 by Administrator

Our toy room has new items: New set of step drills. On the right- older two, on the left- newcomers. Chain saw- there will be less trees in our yard. Electric jigsaw- for our new designs. Pressure washer- maybe I’ll … Continue reading →

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HDD failure

Posted on March 28, 2006 by Administrator

This web page and lots of other small web pages are powered from recycled computers. The hardware is very old… Yesterday, very old Seagate SCSI disk drive failed… This was very sad news, as the backup of the disk is … Continue reading →

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