Side tone coupling circuit diagram


Posted on Feb 7, 2014

Side tone coupling:In telephones, it is the hearing of one`s voice in the receiver when one speaks. Too muchside tonemake people speak lower and can cause feedback. Too littleside toneand people may think the phone is not working or may shout. Figure This is a simplified schematic diagram of a receiver sidetone circuit. Because curren


Side tone coupling circuit diagram
Click here to download the full size of the above Circuit.

t will not flow through a balanced circuit, the turns ratio of inductors L1 and L2 is unbalanced by a predetermined amount and the value of resistor R is changed so as not to match the line impedance. This way, a controlled amount of signal can be induced into L3 to be used as receiver sidetone.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    LED Crystal Tester
    Light/dark relay switch
    Oscillators for Buzzers and telephone Earpieces
    Phase sequence detector
    Regulator-current-source
    15W FM RF Amplifier with 2SC2539
    Logic Circuits Vs Transistor Power Circuits
    Recovery Node



    Top