Simple FM Transmitter


building-simple-fm-transmitter writes:

This article shows you how to build a very simple FM transmitter from thirteen components, a Printed Circuit Board (PCB) and a 9v battery. This project was designed to be mounted on a PCB, however you don’t have to. You could construct the project on Vero board (strip board) or any other 0.1


One Response on “Simple FM Transmitter

  1. The circuit is too simple to transmit voices or music to an FM radio:
    1) It does not have a voltage regulator so its frequency changes as the battery runs down.
    2) It does not have a buffer RF amplifier to separate the oscillator tuned LC circuit from the antenna so its frequency changes if something moves toward or away from the antenna.
    3) It sounds awful like an AM radio or a telephone (no high audio frequencies) because it is missing pre-emphasis.

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