Guide to the Lloyd Espenschied Papers

Summary
Collection ID:
NMAH.AC.0013
Creators:
Espenschied, Lloyd, 1889-? ((electrical engineer) )
Electricity and Modern Physics, Division of, NMAH, SI.
Dates:
1907-1969.
Languages:
English
Physical Description:
11.3 Cubic feet
Repository:

Scope and Contents note
Scope and Contents note
Miscellaneous information on the history of telephonic and wireless communication; considerable personal correspondence about men and events in the field, especially disputed claims of inventions, development, and the like.

Arrangement
Arrangement
Divided into 4 series: (1) Subject file, 1907-1964; (2) Papers and talks by Espenschied, 1923-1969; (3) Patents, 1928-1953; (4) Correspondence, 1947-1959.

Biographical/Historical note
Biographical/Historical note
Espenschied was born in St. Louis and graduated from Pratt Institute in electrical engineering, 1909; on staff of the Telefunken Wireless Telegraph Company, 1909-10; worked for American Telephone and Telegraph Company in various capacities, 1910-34; directed high-frequency transmission development for Bell Telephone Laboratories, 1934-37. Chief interests seem to have been wide-band and carrier waves and wide band systems for communications.

Administration
Processing Information
Collection processed by Robert Harding, 1982
Author
Robert Harding
Immediate Source of Acquisition
Immediate source of acquisition unknown.

Using the Collection
Preferred Citation
Lloyd Espenschied Papers, Archives Center, National Museum of American History.
Conditions Governing Access
Collection is open for research.
Conditions Governing Use
Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.

Ownership and Custodial History
Ownership and Custodial History
Transferred from the Division of Electricity, 4/13/83.

Other Finding Aids
Other Finding Aids
Inventory available; contact the Archives Center for more information.
Other Finding Aids
Inventory available.
Other Finding Aids
Inventory available.

Keywords
Keywords table of terms and types.
Keyword Terms Keyword Types
Telegraph, Wireless Topic Search Smithsonian Collections Search ArchiveGrid
Radio Topic Search Smithsonian Collections Search ArchiveGrid
Telecommunication Topic Search Smithsonian Collections Search ArchiveGrid
Communication Topic Search Smithsonian Collections Search ArchiveGrid
Electrical engineering Topic Search Smithsonian Collections Search ArchiveGrid
American Telephone and Telegraph Company Corporate Name Search Smithsonian Collections Search ArchiveGrid
Telefunken Wireless Telegraph Company. Corporate Name Search Smithsonian Collections Search ArchiveGrid
Bell Telephone Laboratories Corporate Name Search Smithsonian Collections Search ArchiveGrid
Electricity and Modern Physics, Division of, NMAH, SI. Corporate Name Search Smithsonian Collections Search ArchiveGrid

Repository Contact
Archives Center, National Museum of American History
P.O. Box 37012
Suite 1100, MRC 601
Washington, D.C. 20013-7012
archivescenter@si.edu
http://americanhistory.si.edu/archives