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为了更替老式7．5kw屏调机，我台1993年底新进了一部10kw脉宽调制发射机，安装调试后于1994年元旦投入试运行。新机的使用对播出质量的提高，能耗下降起到良好的作用，但美中不足的是，该机所用的阻尼管仍然是真空二极管。由于半导体管可以克服电子管的不足，所以在购机之初我
In order to replace the old 7.5kw screen machine, I Taiwan at the end of 1993 a new 10kw pulse width modulation transmitter, installation and commissioning in 1994 New Year’s Day put into trial operation. The use of new machines on the broadcast quality improvement, energy consumption played a good role in decline, but the fly in the ointment is that the damping tube used in the machine is still a vacuum diode. As the semiconductor tube can overcome the shortcomings of the tube, so at the beginning of my purchase