标题: Arizona Tube Supply [打印本页]

---

作者: EstelleMan    时间: 2025-4-8 05:49     标题: Arizona Tube Supply

Nearly all large power vacuum tubes used in which generation made use of in radio transmitters utilize thoriated filaments, as do some glass tubes utilized in hi-fi amps.

---

欢迎光临 Discuz! Board (http://hd18.cn/bbs/)

Powered by Discuz! 7.2