🌐EnglishEnglishBahasa IndonesiaDeutschEspañolPolskiPortuguêsTürkçeالعربيةفارسی中文日本語EntityQ1515631· pop 14· linked from 300 articlespoint-contact transistorfirst type of solid-state electronic transistor ever constructedConnectionsdiodeEntityvacuum tubeEntityCategoriesBipolar transistorsComputer-related introductions in 1947Transistor types