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Simple Laser Diode Driver ( Dirt Cheap! )

Simple Laser Diode Driver ( Dirt Cheap! )У вашего броузера проблема в совместимости с HTML5
A simple twenty-minute project that lights up a rainy day! Parts required: 1x 2N2907 PNP Bipolar Transistor 1x 1K resistor 1x 220 ohm Resistor 1x 5.1v Zener diode Some solder, flux, perfboard, etc. And a soldering iron.
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