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If you have ever worked with lasers, you know how fun and interesting it can be, you also know how expensive it can be. The high volta...
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The recent tsunami in Japan and the on-going calamity with the Fukushima nuclear power plant has apparently greatly increased sales of r... -
I didn't realize till the other day that I have never shown a circuit for a standard power supply. Shown below is a supply that will ... -
Strip LEDs are available in different colours powered by direct current (DC) source. These LEDs are available as surface mount devices with... -
Here is a simple call bell circuit that displays a welcome message when somebody presses the call bell switch momentarily. the alphanum...
