Home›Articles›From the Edison effect to the hard vacuum triodeArticleFrom the Edison effect to the hard vacuum triodeArticlesConnectionsSourcesComments (0)Reader Challenges (0)ConnectionsArticle OnVacuum Tube, Inventions Well-attested SourcesVacuum Tube (Wikipedia)tier 3WikipediaHistory and development: TriodesQuote, History and development: TriodesLee de Forest is credited with inventing the triode tube in 1907 while experimenting to improve his original (diode) Audion.View the SourceAtlas Article Vocabularytier 1AtlasComments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.