Good versus evil socket testers. (with schematics)
19:23
500V insulation test of a British General USB socket.
20:40
70 - GVDA GD169A - ciekawy i tani multimetr cęgowy
14:19
Are over-discharged lithium cells safe? (And how to test for damage.)
11:05
Am testat ANENG AC11, smart tester pentru prize
20:50
Inside a cheap eBay LED power supply. (With arcing flaw.)
15:09
A look inside a (crap) double gang socket with USB outlets.
32:10
Battle of the socket testers | What's the best socket tester? |
24:30