Does anyone know what year Johnny's TV Junior was from? And, in a larger sense, does anyone know what he used for that kind of guitar sound? What I've heard is that, aside from the various double-cutaway TV Juniors he played, he simply used blackface Twin Reverbs. I've noticed that his Juniors generally had the tuners changed to Grovers and that, on at least one of them, the bridge/tailpiece was replaced with a "compensated" one. But does anyone know what string gauge he used, if the Twin Reverbs were modified, etc.? Any info would be helpful.