Although I did not have one of these, I do recall building a simple crystal / cat's whisker set -- with wire wrapped around a toilet paper roll and secured to a wooden base -- when I was about 10. It amazed me that a device like that, with no power source at all, could pull radio signals out of thin air.
I used to hear of people whose dental fillings or braces acted like crystal radios... Talk about having a song stuck in yourhead!
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I used to hear of people whose dental fillings or braces acted like crystal radios... Talk about having a song stuck in yourhead!
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