Audio Fader


Posted on Nov 27, 2012

In this circuit, Ql is a simple amplifier that has its gain controlled by a variable emitter resistance supplied by FET Q2. In


Audio Fader
Click here to download the full size of the above Circuit.

the up position of SI, C3 discharges through R5 and the gain of Ql decreases because Q2 is driven toward cut-off. In the down position, Q2 conducts more, depending on the setting of R6, which causes a gain increase. By varying R5 or C3, various fade rates can be obtained.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Metal detector circuit with TDA0161
    True rms detector
    RF OSCILLATOR CIRCUITS
    Counters and Timer Circuits
    Sine Signal Generating
    Micropower thermometer
    INA105 circuit diagram of the basic power and signal connections



    Top