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The Violet Ray Device as an Alleged Etheric Healing Tool

The violet ray device is one of the most recognizable objects in the history of fringe healing technology. Usually traced through Tesla-era electrical experimentation and the work of d'Arsonval and Oudin, the device became a popular consumer electrotherapy machine marketed for everything from pain and hair loss to nervous disorders, before later being reinterpreted in esoteric culture as an etheric healing tool.