TechnoReview85

It is a simple electronic project of some basic electrical science law you can make this with insulated copper wire and a transistor 2N2222 please watch making video from bellow link wireless charger how to make This is diagram of this project supply voltage 3v

It is a ldr based simple project for student parts list:- LDR (light dependent resistor) transistor cl 100 or bc 548b resistor 1 K ohms & 10 K  ohms led buzzer 3-9v ready buzzer vero board or bread board 2x 1.5 v aa battery  circuit diagram bread board connection  click for video link on youtube project video

Here i make a 9v battery eliminator parts list: 1) 9-0-9 transformer ( bye transformer  as you want ex= If your  need is 3v bye 3-0-3 trasformer 2) 1N 4007 diode x2 3) 1000mf/ 25v capacitor 4)  wire,cabinet box it is not bridge rectifier so we use only two diode circuit diagram ---- please watch making  video

This is template image to make this project print it 4" x4 inch on a paper please watch this video If you want to make it battery powered please watch this video