Radio Disease Killer (R.D.K.)

The Radio Disease Killer (R.D.K.) is an electro-mechanical device that was sold as a radionic apparatus. It was manufactured and sold by the R.D.K. Corporation of America in Brooklyn, New York.

Resources

 * &mdash; brief summation of device
 * &mdash; notes on William Hudgings, brief associate of RDK Corp.