In the event of a government shutdown, American History will remain OPEN through at least Saturday, October 7, by using prior year funds. Visit for updates.

X-Ray Tube

X-Ray Tube

<< >>
Usage conditions apply
Cold cathode, bi-anode glass X-ray tube with "MACALASTER WIGGIN CO. / CHICAGO / QUEEN PAT. No. 594036" inscriptions. The Macalaster, Wiggin Co. was established in Boston in 1898, and established a second facility in Chicago in 1910. It became part of the new the Victor Electric Corporation in 1916.
Ref: Henry Lyman Sayen, “Roentgen Ray Tube,” U.S. Patent 594,036 (Nov. 23, 1897), assigned to The Queen & Company of Philadelphia.
Currently not on view
Object Name
vacuum tube
tube, x-ray
MacAlaster & Wiggin Co.
place made
United States: Illinois, Chicago
overall: 46.3 cm x 13.3 cm; 18 7/32 in x 5 1/4 in
overall: 5 in x 18 1/4 in x 8 1/2 in; 12.7 cm x 46.355 cm x 21.59 cm
ID Number
accession number
catalog number
collector/donor number
Credit Line
Gift of the American College of Radiology
See more items in
Medicine and Science: Medicine
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Note: Comment submission is temporarily unavailable while we make improvements to the site. We apologize for the interruption. If you have a question relating to the museum's collections, please first check our Collections FAQ. If you require a personal response, please use our Contact page.