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The very common BC547 and the 2SC945 will both work in your FM receiver.


Theoretically, it is possible: you need to buy or build a “notch” filter tuned exactly to 103.7 MHz, and insert this in line with the receiver's antenna port. But if the receiver has only an internal antenna then it is inconvenient to connect the filter. Furthermore, any such receiver (even many with an external antenna port) will not actually have enough ...

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