Old time radio drama exists because of hobbyists and radio personnel, who rescued episodes of shows on transcription tapes and on glass or vinyl records. Some radio programs are presumed lost, primarily those from the 1930s – few programs from the 1920s were recorded

Chandu, the Magician

Chandu the Magician is an American supernatural radio drama which originally aired from 1931–1936. A revival on a different network took place 12 years later, airing from 1948–1950. The series was created by Harry A. Earnshaw (1878–1953) and Raymond R. Morgan. The two series starred Frank Chandler, also known as Chandu, an American who had learned mystical arts, such as astral projection, which he used to fight criminals and villains, including the evil Baron Roxor.