My recollection is a personal recollection of such stations coming out of Del Rio as XERF ... growing up in the Chicago - Grand Rapids - Detriot triangle we didn't hear a lot of other stations from the southwest part of the world - but I remember the 'corn' coming out of Del Rio!
According to the article I referenced earlier XER, XERA and XERF all operated out of Del Rio.
I don't remember the call letters of the one I listened to, but it played country music at night when I tuned in.
This is when it played country music and this is what I remember.
Later it was again renamed as XERF and its power dropped to 250K watts.
If you'd grown up around Del Rio in the late '50s-early '60s, your memories of that time might well have included the hazy electrical corona around fence wires and railroad telegraph lines on misty damp or foggy mights, particularly those sections that ran more or less 90º or 180º toward XERF's antenna farm.
And if you'd moved to the downstate Illinois farmland at age 15, as my family did, you'd have felt slightly more at home in the new area upon finding that XERF still came in clear as a bell most evenings.
XERB with Wolfman Jack is the other *Texas Thunderer* station I recall from those days. There are a few audio clips from both [and other stations he worked at] *here*
-archy-/-