Monthly Archives: May 2006

Nixie low voltage PSU

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

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

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)

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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