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Lloyd Espenschied Papers

Creator:
Espenschied, Lloyd, 1889-? ((electrical engineer) )  Search this
Source:
Electricity and Modern Physics, Division of, NMAH, SI.  Search this
Names:
American Telephone and Telegraph Company  Search this
Bell Telephone Laboratories  Search this
Telefunken Wireless Telegraph Company.  Search this
Former owner:
Electricity and Modern Physics, Division of, NMAH, SI.  Search this
Extent:
11.3 Cubic feet
Type:
Collection descriptions
Archival materials
Date:
1907-1969
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:
The collection is divided into 4 series.

Series 1: Subject files, 1907-1964

Series 2: Papers and talks by Espenschied, 1923-1969

Series 3: Patents, 1928-1953

Series 4: Correspondence, 1947-1959
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.
Provenance:
Immediate source of acquisition unknown.
Restrictions:
Collection is open for research.
Rights:
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.
Topic:
Telegraph, Wireless  Search this
Radio  Search this
Telecommunication  Search this
Communication  Search this
Electrical engineering  Search this
Citation:
Lloyd Espenschied Papers, Archives Center, National Museum of American History.
Identifier:
NMAH.AC.0013
See more items in:
Lloyd Espenschied Papers
Archival Repository:
Archives Center, National Museum of American History
EDAN-URL:
ead_collection:sova-nmah-ac-0013

E 579 46 : Brief Introductory Description of Radar Search Receiver Gear Fu M B (former covername "NAXOS")

Collection Creator:
United States. Navy  Search this
Germany  Search this
Extent:
18 Frames
Container:
Roll 2, Item 43
Type:
Archival materials
Microform
Frames
General:
Originally published September 1943 by Telefunken Wireless Telegraph Company.

Translated by OP 20 GL-A, 1944-11-08.
Collection Restrictions:
No restrictions on access
Collection Rights:
Material is subject to Smithsonian Terms of Use. Should you wish to use NASM material in any medium, please submit an Application for Permission to Reproduce NASM Material, available at Permissions Requests.
Collection Citation:
Captured German Technical Documents (Technical Intelligence Center Film), Acc. XXXX.0409, National Air and Space Museum, Smithsonian Institution.
See more items in:
Captured German Technical Documents (Technical Intelligence Center Film)
Archival Repository:
National Air and Space Museum Archives
EDAN-URL:
ead_component:sova-nasm-xxxx-0409-ref576

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