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Voltage regulating

Hello! Can i use Zenerdiodes to drop voltage from 6v to 4,7v (to PicAxe 08M) using Z04713? Or what do i use?

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The source voltage is kind of close to your output voltage. If you have any ripples in your supply your desired output voltage might fall below 4.7V. If you want to try you should maybe use a 1N4732A. The R should be as close to 13ohms as possible, rated at 1/4 watt or higher.