Test of the Yihua 502D USB bench power supply. (With fix!)
29:03
Fixing a faulty USB power supply.
19:23
500V insulation test of a British General USB socket.
20:50
Inside a cheap eBay LED power supply. (With arcing flaw.)
29:33
500V to 12V 3A power supply (with schematic)
11:21
Faulty no-volt relay machine switch
22:12
Fixing a faulty electric shower PCB (no microcontroller)
24:39
IKEA SMÅHAGEL USB charger teardown
22:11