More about LED (792)

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| Light effects have always been popular. Now that LEDs are available in all sorts of shapes, sizes and colours for reasonable prices, a whole...

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| In this month’s modding & tweaking article we delve a little more into the ‘not so very useful, but nevertheless quite funny’ types of circu...

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| Many readers have asked how they can make their own E-blocks. This month we take a look at some options on making your own prototype E-block...

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| Commercial PCB exposure light boxes usually employ gas discharge tubes as an ultraviolet (UV) light source, these devices are however bulky,...

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| The switch-mode power supply chosen by the author for this article is built without the use of special-purpose ICs and so can be completely...

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| If you want to apply computer control to a solenoid valve or another DC load there is no need to start looking for an expensive measurement...

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| This article mainly concerns enthusiasts using radio controlled scale models that include an electrical motor without permanent magnet brush...

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| Sure, there are many ways to power an LED from the mains. However, in good philosophical (and GPRS) tradition, the shortest way to success o...

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| This design for a Christmas tree lighting system employs ten red light emitting diodes (LEDs) instead of the usual lamps. The LEDs are power...

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| The miniaturisation of components does cause the odd bit of trouble at Elektor Electronics as well. While developing last June’s Electrosmog...