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FU-826和FU-828是为替换玻璃管FU-10_Z~S和FU-22_Z~S而设计的新产品。本文详细介绍了这两种管子的性能和特点,以及在电台的试验和使用情况。
FU-826 and FU-828 are new products designed to replace glass tubes FU-10_Z ~ S and FU-22_Z ~ S. This article details the performance and characteristics of these two tubes, as well as the test and use of the station.