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2N3904 | 骆驼调频
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2010年06月20日 FM ⁄ 共 1655字 ⁄ 被围观 417 views+
    在学校的教学过程中经常因教室大、学生多而坐在教室后面的学生听不见教师声音。该系统主要针对此问题而设计,也可以作为简单的会议系统使用。其发射机部分体积小、重量轻可由教师或由会议的发言者佩带在身上,接收机可以放置在教室的后方。调试好发射机和接收机的频率,即可使教师或会议的发言者的声...
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+0°
2008年01月24日 FM ⁄ 共 16字 ⁄ 被围观 407 views+
射频功率监测电路(2N3904)
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