Object Details
sova.nmah.ac.0055_ref1498
- Collection Creator
- Clark, George Howard, 1881-1956
- See more items in
- George H. Clark Radioana Collection
- Date
- 1871-1946
- Archival Repository
- Archives Center, National Museum of American History
- Identifier
- NMAH.AC.0055, Series 48
- Type
- Archival materials
- Collection Citation
- George H. Clark Radioana Collection, Archives Center, National Museum of American History, Smithsonian Institution
- Collection 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.
- Scope and Contents note
- Series 48 contains literature about receiving condensers, including variable and fixed types, detectors, and test appliances; standard condensers for laboratory use; protective device condensers; and key condensers. Included are mostly patents and variable patents, but also there are indexes, diagrams and drawings. This series also consists of patents on sub-class 2 and including specification of Letter Patents on foiled paper and methods of producing same; on condensers; on electrical ignition devices; on press-plates; on press-mold; on condenser terminals and methods of framing same; on protective units, on high-frequency electrical oscillation apparatus. In addition, there are bulletins; magazine clippings; booklets; correspondence; drawings; diagrams; graphs; reports; extracts from U.S. Navy monthly reports; pamphlets; articles; memoranda; test; and experiments.
- Collection Restrictions
- Collection is open for research but a portion of the collection remains unprocessed and is stored off-site and special arrangements must be made to work with it. Contact the Archives Center for information at [email protected] or 202-633-3270. Gloves must be worn when handling unprotected photographs, negatives, and slides.
NMAH.AC.0055_ref1498
Large EAD
https://n2t.net/ark:/65665/ep861ff1161-a249-421c-9633-550a4d3d8fdc
NMAH.AC.0055
ACAH
- Record ID
- ebl-1562720312231-1562720312458-5