Low-Noise Audio Preamp


Posted on Sep 12, 2012

A low-noise LT1115 (Linear Technology, Inc.) op amp is coupled to a class-A buffer amplifier to produce a variable g


Low-Noise Audio Preamp
Click here to download the full size of the above Circuit.

ain (12-to-50 dB) microphone preamp. THD is less than 0.01% from 80 Hz to over 20 kHz. The transformers must be properly grounded and shielded.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Hands-free-telephone
    High-performance-video-switch
    450W Power Factor Controller with Universal Input Voltage Range
    Remote Operated Spy Robot Circuit
    AC Current Monitors
    LT4060 with temperature-controlled 2A NiMH battery charger
    DK-5A, DK-5AD AC power control circuit



    Top