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Links: FM Transmitter Schematics

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PLEASE NOTE: The quality and spectral purity of these designs have not been tested.

PLL Exciter
Two-component design makes a solid foundation for any amplifier

3-3.5 Watt FM Transmitter Info
Several documents detailing the construction of this German design can be found here.

Transmissor de FM
Portuguese page for a very low-power PLL design, capable of between 10 and 350 milliwatts

Elliott Sound Projects - Low Power FM Transmitter
Detailed schematic plans and explanation for assembly, it has NOT been tested, and should be used with a low-pass filter if assembled

3 Watt FM Transmitter
Untested design claimed to put out 3-3.5 watts between 90-110 MHz.

Essential Modifications for the Ramsey FM-10a Kit
G. Forrest Cook has written this excellent document on what to do to clean up this Ramsey yardcaster's spectral purity - following these steps can eliminate many common interference problems with this kit

Ramsey FM Transmitter Kit Mods
Two modifications can be found here, with graphics - one will up the output of the FM-100 transmitter, the other will increase the bass response of early FM-25 and FM-100 model transmitters