High efficiency and high linearity space traveling wave tube (TWT) is required for satellite communication system as a high power, high gain microwave amplifier.

作为卫星通讯系统所用的高增益、高功率微波放大器件，行波管的效率和线性是非常重要的。

youdao

A high quality audio power amplifier is disclosed, whose quality features the dynamic nature of transistor and the sounds quality of electronic tube. Its key technique is use of c.

本发明提供了一种高品质音频功率放大电路，其品质具有晶体管的动态和电子管的音色，关键技术所在是采用了C。

youdao

Samsung's Vacuum Tube Soundbar (model HW-F750) resolves consumers' desire for pure power and warm, natural sound by integrating a vacuum tube amplifier into a soundbar for the first time.

ENGADGET: Samsung introduces its CES audio hardware, claims a world first