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AN /PRC-77技術手冊 |
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點評
想必R-442的接收高放也是採用真空管喔?
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點評
A9000總成提供屏極電壓,好像就700VDC,,,,
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點評
連學校的無線廣播麥克風也都使用那波段..
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小黑屋|手機版|Archiver|TRC 台灣無線電俱樂部 taiwan radio club
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