KIRK HAMMETT says it's his MAGIC WAH PEDAL and it's NOT his signature model! (do I need one?)
25:30
Nirvana's Tone is Harder Than You Think (Kurt Cobain's Tone in 7 Pedals)
10:08
Kirk Hammett's Wah-Wah Obsession 
34:22
The Largest Guitar Pedal Collection
23:19
Electric Guitars Types: Everything you must know
9:20
6 Wah Pedals... 1 Board
10:47
10 Hidden ENTER SANDMAN Details (that I SHOULD have known!)
22:57
The First Wah Pedal Demo Ever Made! (1967)
12:26