Vol. 4, No. 3April 18, 2023July 19, 2024By Libby45View FullscreenOn the Cover The Bell Labs type A transister, 1949In this issueHeil TubesTube-Heater Flash – Some Retrospective ThoughtsAn Odd One from ArcturusThe Type A Transister – and the “First” Transister RadioVT-155 – Mystery Solved!“Undocumented Aliens” – Curse of the Restorer
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