Hey, welcome to another video from Electrical Projects channel. And in today’s video,
I am going to build a very simple device that detects static electricity
This device will be very sensitive and will detect your hair brush even from two meters.
for building this device
I will use two transistors, one of which is regular bipolar transistor and second is JFET transistor.
Also, we’ll need, an LED, 10K resistor,
an active buzzer, and a couple of wires to connect this device to a power source.
On the right, you can see the schematic and let’s start soldering.
First I am going to solder together the source lead of J310 and emitter of BC547
and connect to them a black wire.
Perfect. Now I am going to solder together Drain of J310 with the Base lead of BC547
and also I'll solder to them 10k Ohm resistor
Now let’s solder Cathode of the LED with collector lead of BC547
And now let’s solder anode of an LED with the minus lead of the buzzer, and this device is almost ready.
The last thing that requires soldering is red wire,
We need to solder it to plus lead of the buzzer and to 10K resistor, and this device is ready.
Also, if you want to make this device more sensitive you can make gate lead of JFET transistor longer
But it is not necessary
Now let's see how this device works
Now brush your hair and after that bring the hair brush to this device
And there is all for today
I hope this video was interesting if so, then like it and of course thanks for watching and see you next time
