Making siren system by just simply using a transistor having great fun. Simply you can generate a siren sound by just using a transistor, speaker, or Buzzer and other few Components.
Creating this siren sound having great fun, you can create this circuit to make a toy for children's.
Here we use the speaker to generate the sound you can also use a buzzer which doesn't affect so much.
What is Siren Circuit?
This is just a simple circuit that is created by some transistors and few more components to give the siren sound. To get the siren sound we use speakers and buzzers at the output.
Here in this circuit, we don't use any IC to generate the sun we only use two transistors and few more components which you can easily found in all scrap circuits.
1) 2x 2n2222a Transistor
2) 22k, 47k, 30k, Resistance
3) 22uf Capacitor, 0.47uf Capacitor
4) Speaker or Buzzer