(XERA-AM, Ciudad Acuna, Mexico - Transmitter Tube)
I still maintain we need to include Wolfman Jack as one of us.
Although he began at XERB, Tijuana, on the West Coast, by the later 1960's, he was also being broadcast over other Mexican powerhouses like XERA, out of Ciudad Acuna, across the Rio Bravo from Tejas. It was his rebroadcasts over XERA that I was first introduced to The Wolfman while going to college in Arkansas, in 1967-68. That's how far that signal went: straight across the mass of Texas and on into the backwoods of Ar-Kansas.
Check out the transmitter tube. "Can ya dig it, baby?!"
Western Electric 320A tube