crystal set การใช้

• At first the audience consisted largely of young men tinkering with crystal sets.
• People listened to their crystal sets next day for news.
• The Crystal Set disbanded at the end of 1991.
• Modern crystal sets use piezoelectric crystal earpieces, which are much more sensitive and also smaller.
• The Crystal Set released its first single, " A Drop in the Ocean ", independently.
• It sold the first crystal set radios in 1922.
• If the Horned Serpent wants the student, the crystal set into its forehead will light up.
• Impedance of 1000 to 2000 ohms was common, which suited both crystal sets and triode receivers.
• The requirements for earphones used in crystal sets are different from earphones used with modern audio equipment.
• His research and experimentation with the Audion moved radio reception beyond the crystal set and spark-gap transmitters.
• These units were equipped with " Veeps " : jeeps having Very High Frequency SCR-193 crystal sets.
• The foxhole radio is like a crystal set, in that it does not require an external power source.
• Traditional crystal sets use half-wave rectifiers.
• The first crystal sets received wireless telegraphy signals broadcast by spark-gap transmitters at frequencies as low as 20 kHz.
• Early radio listeners, often using home made crystal sets and long wire antennas, found radio stations few and far between.
• In recent years, the number of such believers has swollen, spilling from the Birkenstock-and-crystal set into the culture at large.
• Some crystal set users added a carbon amplifier or a mechanical turntable amplifier to give enough output to operate a speaker.
• This later gave way to the famous and more sensitive galena crystal sets . spark coil from Ford Model T automobiles.
• It was used in the earliest days of radio, when only one or two stations were within a crystal set's limited range.
• The early earphones used with wireless-era crystal sets had impedance, often 75 ?, and required more current than a crystal radio could supply.