Solid-state devices have long been the preferred choice over vacuum devices. Vacuum tubes, which use high-voltage supplies (typically in the range of several kilovolts), are much less reliable than so...
Next are the 4 evaluation reports:
(1)https://bbs.eeworld.com.cn/thread-1214040-1-1.html
(2)https://bbs.eeworld.com.cn/thread-1214570-1-1.html
(3)https://bbs.eeworld.com.cn/thread-1215784-1-1.html
(4)...
It's time to get out of internship in my senior year. I don't know where the internship arranged by the school will go, and it will be difficult to bring things with me. I'm selling some ST boards now...