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1.
A hobbyist built a working computer out of 460 vacuum tubes, and it needs 15 minutes to warm up (techspot.com)
2.
A tinkerer built an 8-bit computer from 460 vacuum tubes that runs software but needs a stepladder for repairs (techspot.com)
3.
Self-taught tinkerer demos working room-sized Cold War-era supercomputer with vacuum tubes — takes 15 minutes to warm up and smells like burning dust, 8-bit design uses 460 recycled 1950s Soviet tubes (tomshardware.com)
4.
Tech note: making your own V-I plots at home (news.ycombinator.com)
5.
Making glass-to-metal seals for home­made vacuum tubes (news.ycombinator.com)
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