Comments by "Martinit0" (@Martinit0) on "The Transistor That Won the World" video.

  1. It's not that bad. We have 2 electric toothbrushes and one airfryer from Philips. I bet those toothbrushes are good cash cows.
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  2. Vacuum tubes need a lot of power, those filaments need to be heated to emit electrons. Also not as reliable if you have thousands of them. Consider that the filament will slowly evaporate unless you drive at very low emission setting. Similar failure mode for light bulbs, which also have a filament but optimized for light emission not electron emission.
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