AUDIBLE LIGHT SENSOR


Posted on Feb 4, 2014

741 opamp is connected as audio oscillator with Radio Shack 276-677 photocells in feedback circuits. When light strikes PC1, its resistance decreases and frequency of audio tone in headphone decreases correspondingly. When light strikes PC2, which is connected to noninverting input of 741, increase in illumination serves to increase frequency. Choose R4 to r..


AUDIBLE LIGHT SENSOR
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Quality Headphone Amplifier
    6V Gel Cell Battery Charger
    PIC16F886 Based Horn Driver ECE Mini Project
    Ultimate Continuity Tester Hides Many Tricks Up Its Sleeve
    how to build a100 watt pure sine wave
    how to make electronic siren circuit
    Self-Powered Fast Battery Tester Schematic
    For frequent motor starting Y- starting circuit



    Top