How does a vacuum tube work (GU-50 power pentode autopsy)
17:48
What's inside this cheap insect zapper
19:37
Adam Savage's Vacuum Tube Collection Gets CT Scanned!
12:37
Dodgy CFL-style LED in a funny box
19:19
Tesla BM370 vacuum tube oscilloscope teardown and restoration
14:59
How To Make Electron Tubes - P&C Electronics
19:26
#355 Let's try to build a Vacuum Tube Radio
20:34
Testing A Large Tube Used For Heating People With RF!
22:21