high-gain tube

例句：

1. 1. The high-gain tube is used in the power supply circuit to boost the output voltage.
   高增益管用于电源电路，以提升输出电压。
2. 2.In radio engineering, the high-gain tube is crucial for achieving high-frequency amplification.
   在无线电工程中，高增益管对于实现高频放大至关重要。
3. 3. The high-gain tube has a wide frequency response and can deliver strong signal strength at high frequencies.
   高增益管具有宽频率响应，可以在高频时提供强大的信号强度。