Schematics FM Radio Antenna Amplifier PCB | Electronic Circuits

Schematics FM Radio Antenna Amplifier PCB

Here's a circuit which can be used as a FM booster or amplifier with only a small handfull of parts. The core of this FM antenna amplifier is a UHF/VHF type transistor, MFE201. This amplifier will allow you listen to distant FM stations. The circuit is configured as a common-emitter tuned RF pre-amplifier wired around VHF/UHF transistor MFE201.

Circuit diagram of : Click on image to enlarge

In  this active fm amplifier circuit, adjust capacitor trimmers C1 and C2 for maximum gain.Input coil L1 consists of 4 turns of 20SWG enamelled copper wire over a 5mm diameter former. It is tapped at the first turn from ground lead side. Coil L2 is similar to L1, but has only three turns.

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