Simple music circuit

Hi We all like to make music circuits .So today I'm going to give you a very useful circuit diagram.Actually this circuit operates with common Ic called UM66.And another important thing is this circuit runs with 3V power supply. By using BC 548 the power of the sound has been increased.I think you will enjoy with this circuit diagram.

Not e: Build this circuit on a pcb

           Don't supply over 3V

Simple LED Fader Circuit Diagram

Hi guys today We hope to give you a very simple fade circuit diagram.First of all I must say that this is a circuit for beginners.When we switch off the circuit it will take some time to switch off the light.After switching off the circuit the LED will get the power of capacitor.When the charge of the capacitor reducing we will be able to see like fading out the LED

Note : Build this circuit on a pcb.

Cimple LED Flasher Circuit Diagram

This is a simple circuit diagram .Here we have used common IC LM317 T.You can choose flowing current according to the chart this circuit can be operated with 9V to 20V.

Note

# Build this circuit on a PCB

parallel and series circuit diagrams

Some viewers hadn't clear idea about parallel and series circuits.Here you can see  we can  build a  circuit in two ways they are parallel and series.If I explain simply when you use series circuit it will reduce the light of the bulb according to the number of bulbs  but when you use parallel circuit diagram it will not reduce the light of the bulb but it will drain your battery speedly  

Simple motor Circuit diagram

Hi everyone today I'm going to give you a very simple and important circuit.We all know about the motor but we don't know how to make a simple motor so here is the way to make a simple motor circuit diagram 
What you want is a magnet battery and a coil.And try to fix it as it shows  

NPN and PNP Transistor

lots of kids ask me about the difference of NPN & PNP.So I think this will be so useful for you.

Simple game for kids

This is simple game for kids.You can propose your Friends to bring this ring one end to another end.while your friends are bringing this ring one end to another end if it touch the coil the bulb will light up.Then he loses the game.the chance goes to another.If one could take the ring to another side that one can win this game.this method is so impotent to check you nerves.if you can do this patiently you have good health condition

How to make a simple Speaker

Today I'm going to tell you how to make a simple speaker.First of all you need a plastic cup,a Magnet,coil.Then turn coil around the magnet turn about 40 turns.Then after fix the magnet middle of the plastic cup.finally connect the wires to the out put of your radio set then you can listen the sound.





Note

# Before you switching on the radio check whether volume controller is in low position or not.Because If not the coil will be burnt.

How to make an electric magnet

This is for kids


This is so simple thing.you need following things first

1 A nail
2 A coil
3A battery
4A switch




Then turn the coil around the nail but before turning the coil cover the nail with a peace of paper.Then attach every thing according to the following circuit.finally give the power and close it to the metal dust then you can see they stick to the nail..




# Now you know how to make an electric magnet

# As your second project make an electric bell

Electronic bell

This is the basic theory of a electric bell.I think this so useful thing for you all.you can do changes when you make this circuit such as changing the turns of coil,Changing the power of this circuit etc.fix this on a wooden board. There should be a touch between A & B.enjoy this








Note

# give 6v power for this circuit
# Use thin coil for this
# Turn your coil around a nail but befor start to turn cover nail with a paper.