Smithsonian Report, l*)33. Compto 



Plate l 



Van de Graaff's First Model 1 .500.000-Volt Generator, with a Discharge 

 Tube of new Design Connected Between Terminals. 



The .spheres in Itii.s iikxIcI were 2 feel in diaineler as eomjtareii with ilie l.Vfooi diaiiieler sptieres in the 



new generator at Hound lliH. 



