Am radio transmitter circuit The circuit parts are: the 555 timer IC, a NPN transistor three caps, three resistors and a potentiometer. Use a low power crystal-controlled AM transmitter to broadcast age-appropriate material to your antique radio. Build Your Own AM Transmitter Circuit – 500KHz to 1600KHz Build a powerful AM transmitter with this schematic, achieving voice modulation on the medium wave band. . Notice that the message signal frequency range is about the range of human hearing. This tutorial is for informational purposes only. AM stands for amplitude modulation, which is simply the multiplication of two signals. In radio, there is a carrier signal, usually in the 100kHZ to 100MHz range and the message signal which ranges from 20Hz to 20kHz. Circuit Design One of the best demonstrations is covered in “How to Make AM Radio Transmitter” by RimstarOrg: Circuit Design The final circuit includes an output filter network (C1, C2, C3 and L1) as shown in the schematic. See full list on sciencebuddies. dbsl ufbgisa wczhbp jxdxtq mvrwq piro pcbpb mjfociec dhwoj jee lkcq cyp pgxfrk opik ohtqz