Check out this interview:
http://www.premierguitar.com/Magazine/Issue/2010/Nov/Ron_Wood_The_Can_Do_Man.aspx?Page=1
On page three, he starts talking about how he gets his sound.
Yeah, they’re cool. As far as different amps, I used an old Fenton Weill on the solo for “Maggie May.” It was like, more or less, a converted radio—it’s a bit like the Champ amp is. There’s a bit of distortion already built in, just because of the old valves and stuff.
Somewhere on the interweb there is an excellent site dedicated to all things Fenton Weill and it is truly a great site full of the wonderfull and wacky world of Fenton Weill.