English version

vacuum tube in Electrical topic

From Longman Dictionary of Contemporary Englishvacuum tubeˈvacuum ˌtube noun [countable] American English 🔊 🔊 TEEa valve(3)
Examples from the Corpus
vacuum tubeJust another snooty $ 3,000 vacuum tube amplifier, I thought.The ideal atmosphere for the vacuum tube is no atmosphere at all, or a perfect vacuum.