How to make a Wireless AC Voltage Detector | | Wireless Tester | | SKR Electronics Lab

Make your Own Wireless AC Voltage Detector. In this video, we'll show you how to build a simple yet effective Wireless AC Voltage Detector circuit using only two BC547 NPN transistors, one 100K resistor, one LED, and one 3.7V battery. This circuit can detect the presence of AC voltage in a circuit without requiring direct contact with the live wires. ⏺️ How it Works ? 🤔 The working principle of this circuit is based on the fact that the voltage applied to the base of the first transistor can be used to control the voltage level at the collector of the second transistor. When AC voltage is applied to the base of the first transistor, it acts as an amplifier to increase the voltage level of the signal. The second transistor further amplifies the signal and sends it to the LED circuit. The LED lights up when AC voltage is detected, and turns off when there is no AC voltage. 🔘 Circuit Diagram is given in the video so watch the whole video without skipping. ⏺️ Required Components : 1. BC547 Transistor × 2 2. 100K Resistor 3. Red LED 4. 3.7v to 5v Battery 🔘 Social Media link : Instagram - https://www.instagram.com/skr_electronics_lab (For any Problem you can message me any time ) Don't forget to like, comment, and subscribe for more electronics and DIY videos. Follow us on social media to stay updated on our latest projects and tutorials. Thanks for watching! #wirelesstester #diy #skr_electronics_lab

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