This is a low cost FM booster circuit to receive far away fm stations clearly on your radio in your local area. The circuit diagram of FM booster consist of a common-emitter tuned RF preamplifier wired around VHF/UHF transistor 2SC2570.
The output of the circuit should be directly connected to your FM receiver. Assemble the circuit on a good quality PCB and adjust the trimmers to get maxim gain.
Input Coil L1
Input coil L1 consists of four turns of 20SWG enameled copper wire (slightly space wound) over 5mm diameter former. The pin configuration of the transistor can also found on the circuit diagram.
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| Circuit Diagram of FM Booster : Right Click >> View Image to view full size |
The output of the circuit should be directly connected to your FM receiver. Assemble the circuit on a good quality PCB and adjust the trimmers to get maxim gain.
Input Coil L1
Input coil L1 consists of four turns of 20SWG enameled copper wire (slightly space wound) over 5mm diameter former. The pin configuration of the transistor can also found on the circuit diagram.
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