This diagram uses a 2 pole 5 way super switch - essentially offering the classic Strat wiring setup that is so familiar to all, with the exception of the "middle only" position has been replaced with combining the neck and bridge pickups for that popular Tele twang.
More Strat Wiring Diagrams
5-Way Stratocaster (Read our step by step guide to wiring a Strat)
Gilmour Strat Wiring Mod (7 Way Strat)