Decibel Meter


Posted on Feb 7, 2014

The circuit below responds to sound pressure levels from about 60 to 70 dB. The sound is picked up by an 8 ohm speaker, amplified by a transistor stage and one LM324 op-amp section


Decibel Meter
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Power Supply for the 8051 Microcontroller
    60W audio amplifier (2N3055)
    Non-integer-programmable-pulse-divider
    Farnsworth Model GT-051 Bakelite Radio (1948)
    Descrete Multistage Light Sequencer
    SA2132 AM/FM RADIO RECEIVER
    A Unipolar Stepper Motor Drive Using The Z8 Encore! ?® Mcu
    Power Amplifier OCL 100w With MJ802 MJ4502
    analog to digital converter pic
    dub siren circuit
    DC supply voltage circuit indicates one of the more limited



    Top