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ABSOLUTELY HUGE Magnetic Induction Heater! Using 100 Spinning Neodynium Magnets And A Bucket

58:45

Building a 1920s Tube Amplifier (And Tubes!)

46:07

Speedrunning 30yrs of lithography technology

11:41

1381 How To Make A Conductive Ink

24:50

The First Transistors

4:46

How the first transistor worked

12:36

Building a Generator

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Make a Point Contact Transistor at home