AC line detector is a device which detects AC line currents without making any electrical connections to the line.
An easy to make circuit to identify the line and the neutral of an AC circuit, without making contact with the wires.
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Now I am going to instruct how to make an AC line detector with less number of components.
Lets Get Started..
Step 1: Components Required
9v Battery with Battery Snap - 1 [Banggood ]
LED - 1 [Banggood]
Transistor 2N3704 - 3 [Banggood ]
Resistors [ Banggood]
1MOhm - 1
330Ohm - 1
220Ohm - 1
Switch - 1 [ Banggood ]
Aluminium or Copper solid thin wire - 5cm
Copper Clad PCB - 1 [Banggood ]
Step 2: Circuit Construction
I attached the PCB layout ,you can etch the pcb .
You can download complete pcb schematic here [ Download ]
To know how to make a pcb [ Click Here]
Install the components as per the layout.
Solder it carefully, because this circuit is highly sensitive .