Low Power Op-Amp - Audio Amp (50 milliwatt) circuit


Posted on Feb 4, 2014

The example below illustrates using an op-amp as an audio amplifier for a simple intercom. A small 8 ohm speaker is used as a microphone which is coupled to the op-amp input through a 0.1uF capacitor. The speaker is sensitive to low frequencies and the small value capacitor serves to attenuate the lower tones and produce a better overall response..


Low Power Op-Amp - Audio Amp (50 milliwatt) circuit
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    CMOS PLL circuit
    Audio Oscillator schematic
    Precision peakvoltage detector
    FM Transmitter circuit using 2N2222
    From Crystal Sets To 405 Line television
    relay circuit diagram
    Electronic Combination Lock Circuit using IC LS 7220



    Top