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by rrmm 4974 days ago
Check out Jeri Ellsworth's homebrow NMOS transistor for some real fun. Just get your bare silicon wafer from E-bay and have at it. http://www.youtube.com/watch?v=w_znRopGtbE
1 comments
tzs 4974 days ago
In a similar DIY spirit, homemade vacuum tubes: http://www.youtube.com/watch?v=EzyXMEpq4qw

Here's another person making one: http://www.youtube.com/watch?v=GAMRHcbE3g0

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