The Psychophone
The Encyclopedia of Occultism and Parapsychology (3rd ed.) lists a "psychophone" as a "direct voice communication at a séance." In 1918 Jesse Shepard (aka Francis Grierson) published Psycho-Phone Messages -- purporting spiritual communications from the likes of U. S. Grant, Thomas Jefferson, Benjamin Disraeli, and so forth. "The psycho-phonic waves, by which the messages are imparted, are as definite as those received by wireless methods." This machine was found in a decaying mansion in Attalla, Alabama, in 1997.