Would it's be possible to wire a single conductor humbucker in a dual humbucker telecaster with 1 tone, 1 vol, and a 3 way blade switch; and if so, how? - Quora
Dual Humbucker w 1 vol and 1 tone - YouTube
2 Humbuckers/3-Way Lever Switch/1 Volume/2 Tones/Coil Tap | Guitar Gear Geek