This exhibit is a 1915 Experimental Pliotron from the William White G E Museum Collection, Schenectady, New York. Tyne collection. It was never fitted with a base cap.The lower tube is 25 mm in diameter.Thanks to Joe Gruber for sending the image.The balloon envelope is 50 mm in diameter and is 114 mm tall.References: J Gruber & 1047. Type Pliotron was first introduced in 1915. See also 1915 adverts. |