Comments by "Chrysippus" (@4.0.4) on "The Superheterodyne Radio: No really, that's its name" video.

  1. ​ @TechnologyConnections  Thanks a lot for the clarification! After some reading, it seems the first copper foil PCB was fittingly for a radio, in 1943.
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  2. 5:31 - wait, that's what it looked like? Was the printed circuit board not invented then? That capacitor at the left is almost touching the chassis! Speaking of capacitors, they look just like modern ones!
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