Is the Violet Ray machine from the 1920s an effective medical device or just a historical scam?

The Violet Ray machine, manufactured by the Fitzgerald Manufacturing Company in the 1920s, was marketed as a high-powered electrical device capable of healing skin conditions and joint pain. However, through testing and investigation, it was revealed to be a scam with no scientific backing. The device capitalized on the public's fascination with electricity during that era, when people believed it had "magical" healing properties. The FDA eventually banned these electrotherapy machines due to their lack of efficacy and potential safety concerns. While the Violet Ray represents an interesting piece of medical history, it serves as a cautionary tale about unregulated wellness devices and the importance of scientific evidence in healthcare.