LED vacuum tube mod
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This little tutorial by Jingle Joe shows you how to light thermionic valves (a.k.a. vacuum tubes) with superbright LEDs.

Thermionic Valve LED Mod

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Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.

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