Building an eBay power filter kit (with schematic).
29:33
500V to 12V 3A power supply (with schematic)
16:18
Inside a totally grilled factory high bay LED bulb
21:35
Lathe VFD 3: How to Fix Noise Problems
5:27
A Sad Moment in American History
42:03
Soldering basics and choosing a cheap soldering iron.
27:34
How do EMI Filter Chokes Work?
29:15
How the Brother label printers laminate the label.
24:19