vacuum tube

about as analog as it gets

<div><object width="420" height="339"><param name="movie" value="http://dailymotion.alice.it/swf/k2ifQL6j7f5YLBryFm" /><param name="allowFullScreen" value="true" /><param name="allowScriptAccess" value="always" /><embed src="http://dailymotion.alice.it/swf/k2ifQL6j7f5YLBryFm" type="application/x-shockwave-flash" width="420" height="339" allowFullScreen="true" allowScriptAccess="always"></embed></object><br /><b><a href="http://dailymotion.alice.it/swf/k2ifQL6j7f5YLBryFm">Fabrication d'une lampe triode</a></b><br /><i>by <a href="http://www.dailymotion.com/F2FO">F2FO</a></i></div>