Low Power Audio Amplifier


Posted on Feb 7, 2014

Another super-simple circuit. You could use this circuit to drive a low power speaker from a sound effects module or a noise generator. Or you could build your own amplified speakers for use with your computer. As shown (with no gain setting network between pins 1 and 8) the circuit amplifies the input signal by 20X. A gain of 200X can be obtained


Low Power Audio Amplifier
Click here to download the full size of the above Circuit.

by connecting a 10uF capacitor between pins 1 and 8. Connect a resistor in series with the 10uF capacitor for intermediate gain values. A 1. 2K series resistor, for example, results in a gain of 50X.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Variable Square wave oscilator with 555 circuit
    Timer circuit
    Wien bridge oscillator II
    Clap-Sensitive Relay with ON/OFF Feature
    Voltage Controlled Voltage Source
    Hydraulic system
    A little glowing Halloween ghost
    Constant Voltage measuring circuit
    The frame memory circuit



    Top