Видео с ютуба How To Make Wireless Tester ( Bc547)

Homemade non contact voltage tester using BC547, Simple AC detector

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How To Make Wireless 🛜 Tester Circuit Using BC547 Resistor (AC Voltage Tester Circuit)

Amazing Wireless Voltage Detector, Home Made Non Contact Tester #BC547

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Homemade Wireless Ac Line Tester // Ac Current Detector // Wireless Line Tester Using BC547

Check AC Line Without Touching The Wire || Wireless Tester || BC547 Transistor

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How to Make a Wireless Tester Using BC547 Transistor!