Our friend Grayson put a lot of effort into this very interesting timeline of tubes (aka valves, or thermatrons). Thanks Grayson!
http://hollowstatedesign.tumblr.com/
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics"
http://soldersmoke.com/book.htm
Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke
Our Book Store: http://astore.amazon.com/contracross-20
Monday, July 15, 2013
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