Sunday, May 26, 2013

Three sirens in one Circuit

This is a siren circuit diagram Here I have used UM3561 circuit diagram.This circuit can be operated with 3V.It can generate 3 sirens.Here I have used IC 2SC9013 you can use the same IC or similar IC. Use 8ohm 0.2W speaker.


Note:-

* Dont use more than 3V
* Dont use this for unnecessary things
* Build this circuit on a PCB