Notebook
name: label: Collection Creator
content: Pickard, Greenleaf Whittier, 1877-1956
setName: label: See more items in
content: Greenleaf Pickard Notebooks and Nikola Tesla Patents
label: See more items in
content: Greenleaf Pickard Notebooks and Nikola Tesla Patents / Series 1: Greenleaf Pickard Notebooks
unitdate: label: Date
content: 1922-1923
container: label: Container
content: Box 3, Folder 4
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials
scopecontent: label: Scope and Contents note
content: Audibility of Broadcasting Stations at Newton Centre, Massachusetts; July 1,1921 Licensed Amateur Transmitting Stations; Radiophone broadcasting today suffers from the following, January 8, 1922; constant output circuit, 1922; Fading Reduction, Superhetrodyne Receiver, 1925; test open wire antenna and loop antenna WBZ and others, 1922; map of the United States with no relationship to project; two wire V counterpoise under single wire; Dorsey's Bulletin "The Armstrong Super Circuit 1922" and others; Broadcasting Station Directory, 1922