FM Booster~Active FM Antenna Amplifier


Posted on Feb 5, 2014

This FM booster that can be used to listen to programmes from distant FM stations clearly. The circuit comprises a common-emitter tuned RF preamplifier wired around VHF/UHF transistor 2SC2570. (Only C2570 is annotated on the transistor body. ) Input coil L1 consists of four turns of 20SWG enamelled copper wire (slightly space wound) over 5mm diamet


FM Booster~Active FM Antenna Amplifier
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er 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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