This is a small start, "Welcome to your journey to find the B.B. King guitar tone" http://bbkinggear.com/
Note the mention of different equipment during different periods of King's career and the rare, if any, use of pedals.
"It takes a lot of devotion and work, or maybe I should say play, because if you love it, that's what it amounts to. I haven't found any shortcuts, and I've been looking for a long time."
-- Chet Atkins
-- Chet Atkins