Regenerative AM Receivers

Posted on Feb 7, 2014

The regen is basically an oscillator circuit with a gain control that allows the user to adjust the feedback to a point just below oscillation or, quite often, just above the critical level such that a small oscillation is present. The typical regen uses a tapped coil or additional windings to connect into the tuning tank and the tuning capacitor

Regenerative AM Receivers
Click here to download the full size of the above Circuit.

provides the total tank capacitance. The components are not critical and the values were pretty much the first ones found on the bench that were near the `right` value so don`t hesitate to experiment. The transistor could be just about any small-signal NPN including the 2N4401, 2N3904, 2N2222, or others. The audio output is fairly weak and will need an amplifier to drive headphones or a speaker. See the audio amplifier page for suitable amps.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    Interactive Voice Response System
    Baxandall Tone Control Circuits Using Two Transistor
    Room Noise Detector Schematic Circuit
    Light circuit diagram: Electromagnetic Sensor Circuit Using 741 IC
    tv transmitter circuit 17
    Battery charging indicator circuit
    MC34017A Telephone Tone Ringer Bipolar Linear/I2L
    Fading LedsCircuit
    non inverting opamp butterworth filter
    Rectifier/filter circuit Semiconductors
    Electronic Head or Tail Circuit
    Simple IF Signal Generator
    Linistepper FAQ
    Attaching a GPS module to the EB675001DIP
    OP90 Micropower Instrumentation Amplifier