功放管，是一种电器器材，主要用于传导电流。
输出功率太低，请求更换功放管。
The output power is too low. Require to replace power tubes.
场效应功放管在全固态发射机的射频功放中应用得越来越广泛。
The power FETs are more and more widely used in radio-frequency power amplification in all-solid state transmitter.
本文作者通过自己在工作中的摸索和积累，总结出了一套更换末级场效应功放管的方法和操作步骤，以供同行参考。
Based on his work experience, the author puts forward a method and operation procedure for replacing final power FETs for the colleagues' reference.
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