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How can I increasing output voltage/amplify my laptop's sound card headphone jack. Tia sal2

Discussion in 'Electronic Basics' started by fakeemail, Nov 6, 2008.

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  1. fakeemail

    fakeemail Guest

    How can I increasing output voltage/amplify my laptop's sound card headphone jack. Tia sal2

    Greetings All

    I'm generating different sound waves using my laptop
    and outputting the sound via my laptop's sound card headphone jack.

    I need to increase the output voltage / amplify the output
    signal to at least 5v while not adding to much noise to the
    signal. What's the best way to go about this?
    Preamp/Amplifier/mixer Can anyone recommend a low cost solution?

    thanks sal2
     
  2. GregS

    GregS Guest

    If you don't need power or current to go along with that increased voltage, then most
    any amplifier will work. Most mixers also have gain. I guess your biggest problem is size
    and power, and what you can live with. We know nothing at this point. I would look at
    headphone amplifiers, IPOD amplifiers, etc.

    greg
     
  3. Guest



    If you want a DIY solution...
    http://tangentsoft.net/audio/cmoy-tutorial

    Michael
     
  4. GregS

    GregS Guest

    That will drive headphones, but not a speaker. Max current should be less
    than 100 ma. I think it used OPA132's.

    greg szekeres
     
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