Micro Power AM Broadcast Transmitter

Posted on Feb 6, 2014

In this circuit, a 74HC14 hex Schmitt trigger inverter is used as a square wave oscillator to drive a small signal transistor in a class C amplifier configuration. The oscillator frequency can be either fixed by a crystal or made adjustable (VFO) with a capacitor/resistor combination. A 100pF capacitor is used in place of the crystal for VFO operation

Micro Power AM Broadcast Transmitter
Click here to download the full size of the above Circuit.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    5 watt, 80 meter QRP CW Transceiver
    20 Watts Car Stereo Amplifier Using TDA2004
    12VDC to 230VAC 60W Inverter Circuit
    Crystal audio oscillator circuit
    salt tester circuit
    ir remote control tester
    Dancing Robots
    DC Motor Control circuit
    Maytag Neptune Schematic
    Search for Varicaps
    One Foot Spot Welder circuit uses IC CD4541
    Hardware circuit C51 microcontroller serial communication
    5-channel low-power interface circuit programmable sensor signal processor AD7714 and DSP