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   Hi, this is my school vacation. So I show you a simple circuit that makes music. Do you know what is um 66 ic. That is a small ic. It includes music tones. So, in this circuit we use this ic. List of electronic components Componet Quantity Ic UM66 1 2Sc828 1 100ohm 1 Circuit Diagram First time make it on a breadboard and check it. If it is working properly, you can make it on your own PCB or a dartboard. Pin configurations of UM66 and 2SC828 are given below. please add a comment   

hello there, in this post I show you how to find protein. what are you need:-             a solution from a food              sodium hydroxide             copperselfate             a test tube 1. add sodium hydroxide for food which you choose for this experiment 2. now add a little from coppersulfate. 3. if your food has protein, the solution maybe purple.

In this video i show you a way to make oxygen at home. Please add a comment.

Hello there, In this Halloween season, I made a mini game. It name is "The Halloween". I give you it free. I think you enjoy from playing this game. How to play It's very easy. you have to collect all the jack o lanterns. But,  you have to be careful with ghost. Download Please add a comment

Welcome. Today I show you how to transmit electricity without wires. (wireless)  This is a simple circuit that work with 3v. The Transmitter You need :- any kind of npn transistor that work with 3v (2SC828, D400, BC547) 1K resistor thin copper magnet wire (I found that from old transformer)                 Coil wind 30 turns from any magnet wire that you found.Now tap it by 15 t and it connect to positive of battery The Receiver You need :-     LED (any colour) magnet wire You Can Use It for..... Wireless battery charger Wireless Lamp