By the later part of 1939, Orson Welles and his Mercury-Theatre-on-the-Air players were sponsored by Campbell Soup. Their broadcasts, of various stories, were aired as features of the Campbell Playhouse.
Dickens wrote the story in just a few weeks, and it was first published - with the subtitle "A Ghost Story of Christmas" - on the 17th of December, 1843.
Campbell Playhouse broadcast of A Christmas Carol, as dramatized and produced by Orson Welles, starring Lionel Barrymore as Ebenezer Scrooge.
Radio broadcast originally aired on December 24, 1939. Clip online, courtesy Archive.org.