Home›Articles›Two separate origins: how the tube and the crystal both became the diodeArticleTwo separate origins: how the tube and the crystal both became the diodeArticlesConnectionsSourcesComments (0)Reader Challenges (0)ConnectionsArticle OnDiode, Inventions Well-attested SourcesDiode (Wikipedia)HistoryQuote, HistoryThermionic (vacuum-tube) diodes and solid-state (semiconductor) diodes were developed separately, at approximately the same time, in the early 1900s, as radio receiver detectors.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.