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    OpAmps Project: Build an Amplified Stereo Mic Kit

    The Learning Circuit | element14 presents |  Project Videos

     

     

    In the previous lesson, Karen talked about how op amps work and the many ways they can be used. In this episode, Karen assembles the Velleman MK136, Super Stereo Ear Kit. This kit uses a NE5532 Op Amp to boost the audio input from two onboard microphones to an audio output jack. While a speaker is not included in the kit, there is a potentiometer that acts as volume control. Follow along as Karen walks you through soldering the kit together and then see it in action!

     

    Bill of Material:

     

    Product NameManufacturerQuantityBuy KitBuy Kit
    MK136 -Hobby Project Kit, Super Stereo Ear, Stereo Audio Amplifier, 2 x MicrophonesVelleman1Buy NowBuy Now
    DSOX1204G -Digital Oscilloscope, InfiniiVision 1000 X-Series, 4 Channel, 70 MHz, 2 GSPS, 1 Mpts, 5 nsKeysight1Buy NowBuy Now
    AA BatteriesPro Elec3Buy NowBuy Now

     

    Additional Parts:

     

    Product Name

    Speaker with 3.5mm audio cable