I just purchased a "like new" original Cry Baby Bass Wah on eBay for $18. This thing was in the original box and everything, but when I plugged it in no wah... just the sound of my bass was coming through. I tried fresh batteries and my 9v powersupply, but no luck. I checked all of the wiring and nothing appeared to be fried, I posted some pictures below. ANY advice would be greatly appreciated!
