Hi everybody, I'm new to electronics and hoping to build a simple circuit that can generate a loud "beep beep"or "ticking bomb" sound ( or anything like that) - the sound would be on/off for 0.3s interval. I have found sth on instructable for this, however, the sound is not loud enough (Used 10W speaker). I need a very loud sound that can be hear clearly from ~20 m away and powered by battery cell ( those 9V or 1.5V cells). I have a 10W & 8 ohm speaker at home.
It would be lovely if anyone can give me the circuit for this. Any directions, instructions or advises are appreciated.
THis is the ticking bomb circuit i mentioned above: http://www.instructables.com/id/Ticking-bomb-package/
It would be lovely if anyone can give me the circuit for this. Any directions, instructions or advises are appreciated.
THis is the ticking bomb circuit i mentioned above: http://www.instructables.com/id/Ticking-bomb-package/