measurement

Voltage-Detector-7

How to make AC Tester | Mains Voltage Detector Circuit | DIY

Introduction,            Hi and welcome back to a new tutorial. In this tutorial we are going to make this simple 3 Transistor contact less Mains voltage detector circuit. And understand how it works. Which can be really useful if you are working with mains voltage. And best part is that its contact less so without any […]

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