It's not often I sit through a 17-minute video from the net, but this French fellow is amazing. The range of skills displayed, as well as the lyrical nature of the presentation, are really mesmerizing. Not many guys like this around.
http://blog.makezine.com/archi...r_own_vaccum_tube.html
http://blog.makezine.com/archi...r_own_vaccum_tube.html