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How to increase gain

Discussion in 'General Electronics Discussion' started by vinod chandran, Nov 7, 2011.

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  1. vinod chandran

    vinod chandran

    192
    2
    Jun 21, 2011
    Hi all,
    I just completed my new project but i need a little bit of extra gain. plz look the attached image and tell me how to increase the gain . My headphone speaker's impedance is 32 Ohms. all i need a little more gain. now i listen the voice from mic in full volume.
    Thanks in advance.
    -vinod
     

    Attached Files:

    Last edited: Nov 7, 2011
  2. BobK

    BobK

    7,682
    1,686
    Jan 5, 2010
    Take out the capacitor - resistor between the output and pin 1 and connect the 10uF cap between pins 1 and 8. This will give you a gain of 200. If that is too much gain try a resistor in series with the cap of around 1K or lower.

    Look at the datasheet for exmples of different gains.

    Bob
     
  3. vinod chandran

    vinod chandran

    192
    2
    Jun 21, 2011
    Hi bob,
    Thanks... Let me try...
    -vinod
     
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