I did a physics undergraduate degree years ago but haven't done much with it since. At the moment I'm working as a computer programmer. Partly I posted to get some reassurance that the way I'm thinking about this sort of stuff is still basically right, so thanks for the encouragement.
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Comment: Sounds like a neat project - have fun!
Comment: Sorry 'about 1 metre _by_ 1.5 metres'
Comment: I built myself a similar table when I wanted a really big surface to work on. It's 1 me…
Comment: I've just added some photos of my circuit diagram and notes.
Comment: Yes. Sorry not to have put it up straight away, but I did them a few months ago and hav…