Flickering waveforms? Glowing cathode ray tubes? Lots of knobs? What's not to like? Ever since I first saw one on TV (and in the science labs at school), I've thought that oscilloscopes were cool. Since reading this really rather excessively geeky article from Mix Magazine, I realise I almost have an excuse to buy one - they're very useful for protecting your tweeters, or something. Also, if you've got an oscilloscope and a modular synth, then you might be able to make Scope Art. They only cost £60+ on Ebay, but I think this might be one step too far.