AC Meter Detector with 3x BC546/7

Circuit composed of three BC546 transistors able to detect the presence of alternating current.
The antenna picks up an electromagnetic wave (generated by the passage of current in the cables) and the transistor circuit amplifies it (3 times) in order to make the LED light up

Electric diagram at: 1:18

Components list:
3x BC546 (or BC547)
1x 1M Resistor
1x 100K Resistor
1x 220Ω Resistor
1x 1K Resistor
1x On/Off switch
2x LEDs (any colors)
10cm wire as antenna

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WARNING: This video is only for demonstration. I don't take any responsibility for damage to things, people and animals.

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Secondary camera: iPhone 6

#VoltageDetector #Electronic #BC547