Rádio de Galena com Fone de Celular
step-by-step assembly of a Crystal radio that uses a cell phone headset, or any other headset. Can be low or high impedance headphones
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My New Favorite! Crystal Radio with Antenna Tuner
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Receptor Elementar e "Galena": mostrando mais detalhes e Cristais
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LU1WGO: Radio Galena Didáctica
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Fox hole Radio
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1921 Westinghouse Aeriola Jr. Crystal Radio
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Crystal Radio Antenna (Shortwave Also)
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How to Make Piezoelectric Crystal Speaker
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Radio with Pyrite Stone (Fool's Gold)
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Homemade radio without electricity. Manufactured by hand and its curious operation
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HOW A GALENA RADIO (CRYSTAL RADIO) WORKS
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NPN Transistor & Ciramic cap Radio 📻
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Build Your Own Galena Radio! A Battery-Free Electronic Classic!
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How to make a radio with a saw and a pencil
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Inside a Secret 1940s WWII Agent Radio: The Lagercrantz Suitcase
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FM Crystal Radio
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TESTING A 1912 STYLE RADIO
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Most basic crystal radio and how they work
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Rádio de Galena
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