Simple Alarm circuit


Posted on Feb 5, 2014

A simple alarm circuit with diagram and schematic that generates multi tone sound. This alarm circuit is suitable to use in burglar alarms and sirens and is designed using dual op amps MC1458 and LM 380.


Simple Alarm circuit
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    VHF TV Signal Amplifier
    Graphical Waveform Synthesiser
    Ni-cad charger with current and voltage limiting
    equivalent circuit of a solid state relay
    IR Demodulator
    Free-Air Laser Light Communications
    BCD THUMBWHEEL SET 99 min TIMER
    Op amp F003 composition of automatic exposure timer circuit
    A stator coil connection



    Top