What does "vintage" wiring on a Les Paul look like? How is it different from "modern" wiring? What are its advantages? Drawbacks?
After a little research I have found these diagrams and some info.
A little quote regarding the pickup volumes in 'vintage' Les Paul wiring:
After the 80's Gibson switched from 500k pots to 300k pots, which made the neck pickup sound, according to one user, 'flabby and lifeless.'
In a Les Paul with what that same user describes as 'the Holy Grail' of guitar electronics, the tone is slightly better, but you can hear it. It is supposed to provide a rounder, richer tone compared to any other wiring scheme. (But sadly, I personally do not presently know, as I have never had the pleasure of playing one :-( )
The way the tone and volume pots were wired is different from today's models. This is 'vintage' wiring:
And in use in the real thing:
And today's wiring sceheme:
And this is the vintage pickup diagram:
50's and modern wiring style diagram from: http://www.mylespaul.com/forums/tonefreaks/558-wiring-library.html
Quote and other pictures from: http://www.singlecoil.com/docs/paula.pdf