Marvin Minsky waxes sentimental over TinkerToys (and lets slip some inside scoop on the TinkerToy computer) in "Introduction to LogoWorks" posted on his web site at MIT.

Will Dominos ever be able to think? These two guys just might be able to pull it off. Follow their trials and tribulations as they try to implement a Nand Gate.

Make your own Vacuum Tubes! Inspired by this description it's a project that seems reasonable to undertake. As a bonus this would make for a great excuse to get that vacuum pump you've always wanted.

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