This is a very simple but useful project, strobe navigation lights for rc airplanes, or you can adjust the flashing time and ...

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There’s a part you’ll find in almost every mains powered switch mode power supply that might at first appear to have only one application. An optocoupler sits between the low voltage and the high ...

Remember how much people complained when Tesla took away turn signal stalks on its new models? Well, now you can buy one from Tesla for your 2024 or 2025 Model 3 to put it back where it belongs. It'll ...

Tesla has added a signal stalk retrofit option for the Model 3 in the United States. The entry-level electric sedan doesn’t come with any steering wheel stalks stateside. The change is welcome, but it ...

Little kids line up in white graduation caps and gowns. Family members pose for formal photos at a wedding. Cousins laugh as they cut into the frosting of a giant birthday cake. These scenes from Amar ...

The improved one-BJT current-limiting supply is not much different than the primitive circuit, though its one additional resistor does change the circuit behavior. The improved circuit is shown below.

has a luminous intensity of 8.0 mcd at 10 mA and a forward voltage of 2.1 V.