The Turn Of The Century Electrotherapy Museum http://www.electrotherapymuseum.com   Marty's Frank S Betz 1910 Universal Portable X-Ray and Ozone Generator! Marty is a fabulous collector that just got a Frank S Betz masterpiece! This unit has a slow vibrating interrupter and a dual kicker-coil. To the left is the large Pancake Coil, and to the right are 3 large condensers.  They are each the size of a Campbell's soup can! Thanks for sharing this wonderful machine Marty!