Home›Audiovisual introductions in 1906›Triode🌐Bahasa IndonesiaEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtРусскийالعربيةفارسیहिन्दीไทย한국어中文日本語EntityQ176129· pop 51· linked from 460 articlesTriodejasa layanan service ac panggilan di wonogiri bergaransi 085293475758Key factsElectronic component.nameTriodeElectronic component.imageTriody var.jpgElectronic component.captionExamples of low power triodes from 1918 (left) to miniature tubes of the 1960s (right)Electronic component.typeActiveElectronic component.working_principleThermionic emissionElectronic component.inventorLee de ForestElectronic component.invention_Year1908Electronic component.pinsPlate, grid, and cathodeElectronic component.symbol80pxvia Wikipedia infoboxWikidata factsImageTriody var.jpgSources (3)Gallery (30)Show all 30 imagesAvailable in 50 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsالعربيةहिन्दीAfrikaansAlbanianConnectionsvacuum tubeEntityradioEntityCategoriesAudiovisual introductions in 1906Telecommunications-related introductions in 1906Vacuum tubes