This is the only information I can find out about them anywhere:
source: http://www.myrareguitars.com/VVSCpickup.html
AIRLINE Vintage Voiced Single Coil Pickup
Have you ever wondered what makes those old AIRLINE guitars sound so wicked? How can a Humbucker sound like that? Well, it can't. The original VALCO pickups were SINGLE COIL, not Humbuckers. They looked like a Humbucker, but that is where the similarity ends. The VALCO pickups were found in all AIRLINE, SUPRO and National Guitars in the late fifties and early sixties. We dissected the originals and have now re-created that famous tone in a new SINGLE COIL design that is housed in a Humbucker format. These are made specifically to replace your Humbuckers and give you that oh-so-nasty growl that is familiar from the likes of Jack White, Hound Dog Taylor, J.B. Hutto and Jimmy Reed.
I can't find any details or demos of them anywhere. like how exactly are they constructed? uh, what do they really sound like?
