Where does this definition of electron tube amplifier come from?
This entry for electron tube amplifier is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Does electron tube amplifier appear elsewhere on Lughet?
Yes — electron tube amplifier appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.