Power Type Interrupters
name: label: Collection Creator
content: Clark, George Howard, 1881-1956
setName: label: See more items in
content: George H. Clark Radioana Collection
unitdate: label: Date
content: 1902-1938
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
identifier: label: Identifier
content: NMAH.AC.0055, Series 27
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents note
content: Series 27 contains advertisements; articles; correspondence, 1909 and 1941; descriptions; and illustrations concerning power type interrupters, particularly Chopper (for arc transmitters) Mechanical, Mercury Turbine, and Wehnelt.