1380 Making Transistors From Rocks
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53:04
How to Find Substitutes for Discontinued Transistors
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58:45
Building a 1920s Tube Amplifier (And Tubes!)
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24:50
The First Transistors
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8:36
Perpetual Battery - Powered By Water
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30:00
I tried to make a camera sensor
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33:03
New Triode Design and Build
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29:45
Semiconductor Fabrication Basics - DIY Homemade NMOS FET/MOSFET/Transistor Step by Step
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21:58