Water Level Indicator Using Transistor BC547

water level indicator using transistor bc547Component:

1.Transistor BC 547

2.4* Led

3.5 Volt Battery

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2 thoughts on “Water Level Indicator Using Transistor BC547

  • 19/02/2018 at 7:45 PM


    Mujhe automatic motor starter on and off
    Ka circuit diagram batao.


  • 30/09/2018 at 12:17 AM

    Water level indicator circuit using transistor bc547 and 220 ohm resistors. I want the calculation details of selection of 220 ohm resistors and 9v power supply


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