Fluorescent lamps, electronic vs. glow starters
22:11
Failed 24V 10A power supply repair
12:47
Electromagnets - How they work and how to build one
16:33
Transformers Explained - How transformers work
19:58
Inside the Most Famous Chinese LED Factory
26:24
1000V insulation tester (Ganz XS)
29:34
Induction light - what's inside, schematic, experiments
23:29
Interesting Experiments With Fluorescent Tubes
17:59