Vacuum Tube Workers: The Last Glassblowers Who Built Radio | Case File #067 copertina

Vacuum Tube Workers: The Last Glassblowers Who Built Radio | Case File #067

Vacuum Tube Workers: The Last Glassblowers Who Built Radio | Case File #067

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CASE FILE #067 — The complete disappearance of commercial vacuum tube manufacturers and the skilled glassblowers, coil-winders, and assembly technicians who built the backbone of 20th-century electronics—from the 1950s through the 1980s, as the semiconductor revolution made their craft obsolete overnight. When semiconductors arrived, they didn't just replace a product—they erased an entire class of skilled workers. This is the story of vacuum tube manufacturing's sudden collapse from the 1950s through the 1980s: the glassblowers, assembly technicians, and craftspeople whose expertise became worthless overnight. How a technological revolution dismantled an industrial empire in less than a decade. Archival imagery: Wikimedia Commons (public domain). 0:00 Cold Open 0:21 What It Was 2:33 The Cracks 5:05 The Vanishing 7:37 The Aftermath 10:23 What Remains 13:08 Outro Histories of things th
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