Using LEDs as mains indicator lights on 120V and 230V (live demos)
30:00
Using salvaged lithium cells to power LEDs directly. (with protection test)
24:39
IKEA SMÅHAGEL USB charger teardown
21:44
LED Circuit Design - How to design LED circuits
29:22
Inside an Arbra dynamite exploder. (With explosion and danger-cats.)
20:16
How to Calculate the Correct Resistor for LEDs Light Emitting Diodes
21:01
Watch Trudeau speak directly to Trump during blistering speech
29:53
how to use a pencil to find failed parts in 52 year old audio gear; repairing a marantz 1060 part 1
14:49