Just picked this guy up. I found one for a cheap price that's literally untouched! It's a USA one from the 90's. Had to replace the reverb tank, but that's it. Everything was immaculate. The seller told me it was never even turned on, as they've never even owned a guitar (fancy that huh?) What do you guys think about the cleans? A true fender tube amp at heart? Is there any major differences between the USA made one and the new Mexican ones?