![Tesla at a banquet](/sites/default/files/styles/default_extra_large/public/theme-images/hero-images.jpg?itok=vaECt2og)
Nikola Tesla Images and Photographs
Images and photographs of, or related to, Nikola Tesla
Unique alternating current generator operated by high-pressure vibrating a diaphragm coil
Fig. 6. — Unique Alternating Current Generator or Exciting Tesla's Early "Beat" Receptor. Actuated by Comprest Air or Steam Which Vibrates a Special Diafram-Coil.