1000V insulation tester (Ganz XS)
18:07
Dangerous USB chargers 17 (QC 3.0 with schematic)
30:30
3-36V 60W Adjustable Power Supply (with schematic)
34:54
I Saved an Electron Microscope from the Trash
34:17
Analog oscilloscope repair - tons of problems!
28:17
valve amplifier PL83 tube rebuilt
33:58
Every Component of a Linear Power Supply Explained (while building one)
11:24
I tried OVERPOWERING my WiFi!
21:34