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The various doorbell product is given below. If you would like to buy or enquire about this product please Mail Here
Also you can ask for how to build electronics Equipments:Mail Here

Installation of Electronics Musical Doorbell.

  1. Insert two pencil cells (size 'AA').
  2. Connect as shown in the figure for 120/240 volts AC operation.


OR

  1. Connetc as shown below for without AC supply(no electric supply is needed).

 
  1. Warning: Replace Batteries if volume slows down.

 
 

Also Available Musical Circuits for Musical greeting card
Order Now Through Mail.Click Here

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