This tab is from the Eric Clapton sheet music book "Anthology"
Sorry but can only think of the intro off the top of my head but it
should sound just fine if you just repeat it a bunch.
Enjoy!

e|-------------------------------------------|
B|-------------------------------------------|
G|-------------------------------------------|
D|--12--12--10--12---------------------------|
A|------------------12--11--10-----8---------|
E|------------------------------10---10--10--|