How To Make A Mini Powerful Doorbell Circuit.A Simple Musical Doorbell.Melodious Ringing Bell Sound.

Friends in this video I will show you How To Make A Mini Powerful Doorbell Circuit..A Simple Musical Doorbell..Melodious Ringing Bell Sound..Friends it is a very simple circuit and you can easily make this doorbell circuit at your home..Friends the sound of the doorbell is very beautiful and loud..Friends in this circuit we will use LM66 ic and some simple components for making the doorbell circuit..Friends UM66 ic is a Musical ic and we will use the ic in this circuit for generating a beautiful melodious ringing bell sound..Friends this doorbell circuit will be operated by only 3volt..Friends the doorbell circuit diagram is in the video please see the circuit diagram..Make this doorbell circuit and fit it in the in front door of your house..When any visitor will come and push the switch of the doorbell the beautiful melodious sound of this doorbell will start and alert you..Friends in this video I will show you complete process of making this doorbell circuit step by step...So friends if you want to know how to make a mini powerful doorbell circuit at your home then watch the video and follow my instruction...Thanks...

Used materials..
1 piece blank pcb board, 1 piece UM66 IC, 1 piece 220ohm resistor, 1 piece BC547 transistor, 1 piece speaker..

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