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Simplest DIY FM crystal receiver in Germany. Is so good that Youtube blocks demo video for the US, Canada and other states, because part of an oldie from local radio is heard. :
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Simplest DIY FM crystal receiver in Germany. Is so good that Youtube blocks demo video for the US, Canada and other states, because part of an oldie from local radio is heard. :
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FM crystal radio receivers - Optimization of a radio receiver powered by the energy of radio waves
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FM Crystal Radio Receivers
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