| 1. | At first the audience consisted largely of young men tinkering with crystal sets.
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| 2. | People listened to their crystal sets next day for news.
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| 3. | The Crystal Set disbanded at the end of 1991.
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| 4. | Modern crystal sets use piezoelectric crystal earpieces, which are much more sensitive and also smaller.
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| 5. | The Crystal Set released its first single, " A Drop in the Ocean ", independently.
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| 6. | It sold the first crystal set radios in 1922.
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| 7. | If the Horned Serpent wants the student, the crystal set into its forehead will light up.
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| 8. | Impedance of 1000 to 2000 ohms was common, which suited both crystal sets and triode receivers.
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| 9. | The requirements for earphones used in crystal sets are different from earphones used with modern audio equipment.
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| 10. | His research and experimentation with the Audion moved radio reception beyond the crystal set and spark-gap transmitters.
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