Wireless meter || how to make a wireless meter || BC547 || by al…
This video is about the wireless meter .
You can use this to check any electronic components .
All you have to do is push the switch and let the copper part touch the object's checkable part .
All you needs are -
1. 9volt battery
2. BC547 transistor
3. Copper wire
4. A LED light
5. Micro switch
6. 1k- 20k resistor
7. 300- 800 Ohms resistor
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