Search Results

Maker:

De Forest Radio Telephone & Telegraph Co.  Search this

Measurements:

overall: 3 1/4 in x 2 1/8 in; 8.255 cm x 5.3975 cm

Object Name:

vacuum tube

triode

Credit Line:

from General Electric Research Laboratory, thru W. C. White and J. R. Morgan

ID Number:

EM.315603

Catalog number:

315603

Accession number:

220105

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746ac-bd64-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_1349047

Creator:

Baer, Ralph H., 1922-2014  Search this

Extent:

16 Cubic feet (45 boxes and 1 oversize folder)

Type:

Collection descriptions

Archival materials

Audiotapes

Audiocassettes

Cd-roms

Diagrams

Drawings

Interviews

Videotapes

Correspondence

Sketches

Photographs

Oral history

Notes

Manuals

Date:

1943 - 2015

Summary:

Ralph H. Baer was a German-born ordnance specialist, inventor, and engineer. He was a pioneer of early videogame technology. The papers include autobiographical materials; firearms notes, manuscripts, and photographs; and videogame and television engineering notes, diagrams, schematics, and video documentation.

Scope and Contents:

The Ralph Baer Papers include autobiographical materials and an extended oral history interview. The Papers also include materials about military small arms created by Baer during his World War II service. The largest portion of the collection documents Baer's work on video games.

Arrangement:

The collection is arranged into 12 series.

Series 1: Autobiographical Documents, 1962-2006

Subseries 1.1: Manuscript, book and other documents, 1962-2006

Subseries 1.2: Other Media: CDs, VHS videos, periodical, 1991, 2000-2003

Series 2: WW II Small Arms Documents, 1943-1953

Subseries 2.1: Correspondence, 1950-1953

Subseries 2.2: Writings and notes, 1943-1948

Subseries 2.3: Drawings and schematics, undated

Subseries 2.4: Manuals and encyclopedias, 1943

Subseries 2.5: Photographs, 1945

Series 3: Hans Otto Mauksch Materials, 1944-1964

Subseries 3.1: Personal background information, 1944, 1945, 1946, 1964

Subseries 3.2: Instructional materials, 1944-1946, undated

Subseries 3.3: Ft. Riley, Kansas, 1946, 1953

Series 4: TV Game Documents, 1966-1972

Subseries 4.1: Working notes, diagrams and schematics, 1966-1971

Subseries 4.2: Administrative documents, 1966-1972 Subseries 4.3: Notebooks, 1966-1968

Subseries 4.4: TV game development documentation, 1966-1968

Series 5: Sanders Associates, Transitron, and Van Norman Industries, 1952-2003

Series 6: Product Development Documents, 1974-2015

Series 7: Product Guides and Technical Support, 1943-2011

Series 8: Legal and Patent Documents, 1966-2014

Series 9: Writings and Notes, 1946-1999

Series 10: Miscellaneous, 1961-2012

Series 11: Correspondence, 1983-2014

Series 12: Publicity and Awards, 1979-2015

Biographical / Historical:

Ralph H. Baer (1922-2014) was born in Germany and immigrated to the United States with his family in 1938. A graduate of the National Radio Institute (1940), Baer worked as a radio technician in the New York City area, servicing all types of home and auto radios. During World War II, Baer served in the United States Army, one year stateside, and two years in Europe. He was assigned to Military Intelligence and became an expert on military small arms. Baer returned to the United States with eighteen tons of foreign small arms for use in exhibits at Aberdeen, Maryland; Springfield, Massachusetts Armory; and Ft. Riley, Kansas.

After the war, Baer attended the American Television Institute of Technology in Chicago, graduating with a BS in television engineering. In 1949, Baer joined a small electro medical equipment firm, Wappler, Inc., as their chief engineer. He designed and built surgical cutting machines, epilators, and low frequency pulse generating muscle-toning equipment. In 1951, Baer moved to Loral Electronics of Bronx, New York as a senior engineer, designing power line carrier signaling equipment for IBM. During 1952-1956, Baer worked at Transitron, Inc., in New York City as a chief engineer and later as vice president. In 1956, Baer joined Sanders Associates in Nashua, New Hampshire building airborne radar components. He became manager of the Electronic Design Department at Sanders and eventually Division Manager and Chief Engineer for Equipment Design. Baer retired in 1987.

At Sanders in 1966, Baer began an independent project experimenting with ways for consumers to interact with standard home television sets. Development of interactive TV Game (TVG) ideas became a company-supported project continued by Baer and assisted by William H. Harrison and William T. Rusch (download the TV Game chronology prepared by Ralph Baer in 2006). By mid-1967, ping pong videogames were played inside Sanders, patent disclosures were applied for, and hardware was designed. Baer and his associates called the devices they were developing "boxes" and numbered the various versions one through seven. In 1971, Magnavox became Sanders Associates's first videogame licensee. Between 1972 and 1975, Magnavox produced and sold over 700,000 units of Odyssey, a set of games played on its television receivers. Atari became a licensee in 1976 after the first of many lawsuits won by Sanders in pursuit of patent infringements.

During his tenure at Sanders and thereafter, Baer was a prolific inventor. His creations included many electronic toys and games and other consumer electronic products. Among the better known products based on Baer's work are Milton Bradley's Simon, Galoob's Smarty Bear Video, and Kenner's Laser Command. In 2004 President George W. Bush awarded Baer the National Medal of Technology.

Baer married Dena Whinston in 1952 and they had three children, James, Mark, and Nancy. Ralph Baer died on December 6, 2014, at the age of 92.

Related Materials:

Materials at the Archives Center, National Museum of American History

Ralph H. Baer Innovative Lives Presentation, August 15, 2009 (NMAH.AC.1179)

The presentation documents a moderated conversation about Baer's life and work. Baer reenacts, with his partner William Harrison, the first time he played "Odyssey," the first home video game for the consumer market, which he invented, and answers questions from the audience. Materials include original video (born digital), master videos, and reference videos.

Materials at Other Organizations

Brian Sutton-Smith Library and Archives of Play at The Strong

Ralph H. Baer Papers, 1968-2010 inclusive; 1975-1998 bulk

The Ralph H. Baer papers are a compilation of correspondence, game designs, drawings, notes, reference materials, photographs, product descriptions, digital videos, schematics, electronic components, and manuals utilized by Ralph H. Baer throughout his lengthy career in the toy and game industry. The bulk of the materials are from 1975 through 1998.

U.S. Ordnance Museum, Fort Lee, Virginia

Materials consist of data on foreign small arms brought back from Europe in 1946 by Ralph H. Baer.

Museum of the Moving Image, Astoria, New York

Holdings include set of seven recreations of "TV game" prototypes originally created between 1966 and 1969, donated by pioneering game developer Ralph Baer. One of Baer's game prototypes, known as the "Brown Box," was licensed by Magnavox and released in 1972 as the Magnavox Odyssey, the world's first commercial home video game console.

University of Texas, Austin, Briscoe Center for American History

Ralph H. Baer "Brown Box" replica, 1952-1983, 2006-2012

The Ralph H. Baer "Brown Box" replica includes a fully-functional replica of Ralph Baer's "Brown Box," the prototype video game console that was used as the basis of the Magnavox Odyssey in 1972. The collection also contains related research materials.

Separated Materials:

The Division of Medicine and Science holds artifacts related to this collection including early video game prototypes and TV Game products.

TV Game Unit #1 (TVG#1); 1966; vacuum tube spot generator with Heathkit IG-62 Generator (See Accession 2006.0102.01)

Heathkit IG-62; used with TVG #1 (See Accession 2006.0102.02)

TV Game Unit #2 (TVG #2), aka the "Pump Unit," 1967; large aluminum chassis with wooden "pump" handle (See Accession 2006.0102.03)

TV Game Unit #7 (TVG#7), aka "Brown Box," 1967/1968; prototype for Magnavox Odyssey (See Accession 2006.0102.04)

Cardboard program cards for use with Brown Box (See Accession 2006.0102.05)

Lightgun, 1967/1968; game accessory for Brown Box (See Accession 2006.0102.06)

TV Game Unit #8, 1968; "de/dt" (velocity responsive) ballgame chassis for use with Brown Box (See Accession 2006.0102.07)

Magnavox Odyssey (Model ITL200) video game unit, 1972; with all accessories in the original carton (See Accession 2006.0102.08)

Milton-Bradley Company SIMON handheld microprocessor-control game, 1978 (See Accession 2006.0102.09)

Ideal Toy Company MANIAC microprocessor-control game, 1979, in original box with game instructions (See Accession 2006.0102.10)

Golf Game accessory, 1968; golf ball mounted on joystick handle for use with Brown Box (See Accession 2006.0102.11

"Brown Box" programming card, target shooting, 1967 (See Accession 2006.0102.12)

Provenance:

The collection was donated by Ralph H. Baer in 2003.

Restrictions:

Collection is open for research but is stored off-site and special arrangements must be made to work with it. Contact the Archives Center for information at archivescenter@si.edu or 202-633-3270.

Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning intellectual property rights. Archives Center cost-recovery and use fees may apply when requesting reproductions. Copyright held by the Smithsonian Institution.

Topic:

Books  Search this

Firearms  Search this

Games  Search this

Litigation  Search this

Inventions -- 20th century  Search this

Machine guns  Search this

World War, 1939-1945  Search this

Weapons  Search this

Video games  Search this

Toys -- 20th century  Search this

Television -- History  Search this

Rifles  Search this

Pistols  Search this

Military intelligence  Search this

Genre/Form:

Audiotapes

Audiocassettes

CD-ROMs

Diagrams

Drawings -- 1940-1950

Interviews -- 2000-2010

Videotapes

Correspondence -- 1950-2000

Sketches

Photographs -- Black-and-white photoprints -- Silver gelatin -- 1940-1950

Photographs -- 20th century

Oral history -- 2000-2010

Notes

Manuals -- 1940-1950

Citation:

Ralph H. Baer Papers, 1943-2015, Archives Center, National Museum of American History, Smithsonian Institution.

Identifier:

NMAH.AC.0854

See more items in:

Ralph H. Baer Papers

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep82f137fe4-60d3-4527-aa78-fed55d4b4fef

EDAN-URL:

ead_collection:sova-nmah-ac-0854

Materials:

Overall, aluminum; pitot tube, lower portion, steel; end portion, or tip, non-ferrous metal; cowling around exhaust end of missile, steel; flush screws on fins and elsewhere, steel; internally, white plastic insulated electrical wires; cross bar fo junction box (marked, "Junction Box"), steel; multi cables with steel braided wires; glass vacuum tube near end; green colored chrome paint internally.

Dimensions:

Overall: height, 5 ft. 3 in. x length, 29 ft. 2 (351 in.) diameter, 20 inches; span, rear fins, 121 in. (10 ft.); span, front fins, 60 in. (5 ft.); weight, 1150 lbs.

Type:

CRAFT-Missiles & Rockets

Country of Origin:

United States of America

Credit Line:

Transferred from U.S. Navy

Inventory Number:

A19710764000

Restrictions & Rights:

Usage conditions apply

See more items in:

National Air and Space Museum Collection

Location:

Steven F. Udvar-Hazy Center in Chantilly, VA

Exhibit Station:

Rockets & Missiles

Data Source:

National Air and Space Museum

GUID:

http://n2t.net/ark:/65665/nv9c8199a06-eef8-4083-97fa-586b0a104b89

EDAN-URL:

edanmdm:nasm_A19710764000

Maker:

Sylvania Electric Products Inc.  Search this

Measurements:

overall: 3 1/8 in x 1 1/4 in; 7.9375 cm x 3.175 cm

Object Name:

vacuum tube

dual triode

Date made:

ca 1945

ID Number:

EM.323035

Accession number:

250988

Catalog number:

323035

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746ac-9967-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_1348683

Maker:

Raytheon Company  Search this

Measurements:

overall: 3 in x 1 1/4 in; 7.62 cm x 3.175 cm

Object Name:

Electron Tube

vacuum tube

dual triode

Date made:

ca 1945

ID Number:

EM.323032

Catalog number:

323032

Accession number:

250988

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746b3-158e-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_701798

Maker:

Raytheon Company  Search this

Measurements:

overall: 3 in x 1 1/4 in; 7.62 cm x 3.175 cm

Object Name:

Electron Tube

vacuum tube

dual triode

Date made:

ca 1945

ID Number:

EM.323027

Catalog number:

323027

Accession number:

250988

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a5-1cb3-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_701816

Associated user:

unknown  Search this

Maker:

Radio Corporation of America  Search this

Measurements:

overall: 3 in x 1 1/4 in; 7.62 cm x 3.175 cm

Object Name:

Electron Tube

vacuum tube

dual triode

Other Terms:

Electron Tube; Electron Tubes

Date made:

ca 1943

Credit Line:

from Susan Horle

ID Number:

EM.313843

Catalog number:

313843

Accession number:

195337

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a5-3d24-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_710337

Maker:

Radio Corporation of America  Search this

Measurements:

overall: 3 in x 1 1/4 in; 7.62 cm x 3.175 cm

Object Name:

Electron Tube

vacuum tube

dual triode

Other Terms:

Electron Tube; Electron Tubes

Date made:

ca 1945

Credit Line:

from Paul G. Watson

ID Number:

EM.324448

Catalog number:

324448

Accession number:

252994

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a5-4a16-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_712306

Measurements:

overall: 3 in x 1 1/4 in; 7.62 cm x 3.175 cm

Object Name:

triode

vacuum tube

Other Terms:

Electron Tube; Electron Tubes

Date made:

ca 1941

Credit Line:

from Paul G. Watson

ID Number:

EM.324458

Catalog number:

324458

Accession number:

252994

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a5-4b33-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_712316

Maker:

RCA Corporation  Search this

Physical Description:

plastic (overall material)

metal (overall material)

Measurements:

overall: 19 cm x 12.5 cm x 29 cm; 7 1/2 in x 4 15/16 in x 11 7/16 in

Object Name:

radio

radio receiver

transistor radio

Date made:

ca 1956

Credit Line:

from Paul Johnes

ID Number:

1989.0657.02

Catalog number:

1989.0657.02

Accession number:

1989.0657

See more items in:

Work and Industry: Electricity

Communications

American Enterprise

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a9-e7c4-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_1153317

Collection Creator:

Baer, Ralph H., 1922-2014  Search this

Container:

Box 35, Folder 11

Type:

Archival materials

Date:

undated

Collection Restrictions:

Collection is open for research but is stored off-site and special arrangements must be made to work with it. Contact the Archives Center for information at archivescenter@si.edu or 202-633-3270.

Collection Rights:

Collection items available for reproduction, but the Archives Center makes no guarantees concerning intellectual property rights. Archives Center cost-recovery and use fees may apply when requesting reproductions. Copyright held by the Smithsonian Institution.

Collection Citation:

Ralph H. Baer Papers, 1943-2015, Archives Center, National Museum of American History, Smithsonian Institution.

See more items in:

Ralph H. Baer Papers

Ralph H. Baer Papers / Series 7: Product Guides and Technical Specifications

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep8c965dbc8-96ff-4b96-90bb-541897f0d545

EDAN-URL:

ead_component:sova-nmah-ac-0854-ref531

Creator:

Brown, Brian Ivan  Search this

Kearns, Robert W.  Search this

Kearns, Timothy  Search this

Quan, John  Search this

Names:

Kearns and Law  Search this

Tann Company  Search this

United States. Bureau of Standards.  Search this

Extent:

8.5 Cubic feet (24 boxes)

Type:

Collection descriptions

Archival materials

Reports

Trade literature

Patents

Photographs

Drawings

Notebooks

Correspondence

Memorandums

Date:

1963 - 1999

Summary:

The collection documents the inventive career of physicist and engineer Robert W. Kearns. Kearns invented and patented in 1967 the windshield wiper system with intermittent operation (US 3,351,836), among other inventions. The papers include notebooks, correspondence, reports, memoranda, photographs, patents, drawings, and trade literature.

Scope and Contents:

The collection includes notebooks, correspondence, reports, memoranda, photographs, patents, drawings, and trade literature. Kearns held patents related to circuitry which are integral to electronic intermittent windshield wipers. The windshield wiper documentation consists of patents, correspondence, and a set of drawings from November 16, 1967 for Tann Company. Other documentation includes Kearns's work with the engineering firm Kearns and Law (brochures, shop orders, agreements); his National Bureau of Standards work, which consists of his personnel file and notebooks detailing his highway skid resistance research; and subject files that cover a range of topics that interested Kearns, such as radar, speed control, and electric cars. At the heart of the collection are 32 invention notebooks (1963-1986) belonging to Kearns as well as engineers he worked with including John Quan, Brian Ivan Brown, and Timothy Kearns, son of Robert Kearns. Bound, paginated, and dated, the notebooks contain sketches, schematics, calculations, data, telephone numbers, and details about materials, costs, testing data, and descriptions for many of Kearns's projects. The notebooks present a comprehensive overview of his ideas and are significant to understanding his creative process and how his ideas changed or did not change over time. The majority of the notebooks are arranged in chronological order and therefore researchers can see Kearns's work unfold. Many of the notebooks are stamped with a "PO" to indicate a "protective order" followed by a number, and many of the notebooks were used during court proceedings. The protective order restricted access to notebooks which were filed with the court, or to be filed with the court at a future date.

Arrangement:

The collection is arranged into ten series.

Series 1: Biographical Materials, 1957-1991

Series 2: Notebooks, 1954-1994

Series 3: Patents, 1957-1985

Series 4: Kearns and Law Engineers, 1957-1962

Series 5: Kearns Engineers, 1967-1985

Series 6: National Bureau of Standards, 1967-1972

Series 7: Ford Motor Company (Engineering Technical Education Program), 1964-1966

Series 8: Windshield Wiper Materials (Kearns vs. Ford Motor Company), 1962-1993

Series 9: Subject Files, 1965-1999

Series 10: Correspondence, 1989-1999

Biographical / Historical:

Robert William Kearns was born in Gary, Indiana on March 10, 1927 to Martin W. Kearns and Mary E. Kearns. One of three children, Kearns grewup in the Detroit area, graduating from the University of Detroit, Bachelor of Science in Mechanical Engineering (1952); Wayne State University, Masters of Science in Engineering Mechanics (1957); and Case Western Reserve University, Ph.D. in engineering (1964). Kearns also earned certificates in nuclear reactor control from Argonne National Laboratories (1958 and 1959). He was a Corporal in the United States Army, assigned to the Office of Strategic Services (OSS), the Strategic Services Unit (SSU); the Central Intelligence Group (CIG), and the Central Intelligence Agency (CIA.) from July 31, 1945 to November 29, 1946.

Prior to joining the military in 1945, Kearns worked at Mercury Engineering Company (1943-1945) in Detroit as a draftsman preparing engineering shop drawings. After the war, Kearns joined the H & A Tool and Die Company (1946-1947), also in Detroit, as a draftsman preparing engineering shop drawings for the manufacture of the individual parts for machinery and special dies. Through the University of Detroit Cooperative Program with the National Bureau of Standards, he participated in an engineer in training program (1949-1952) where he executed a variety of standardized tests on engineering materials. He held a variety of engineering positions: designer/draftsman with Peerless Design Company, Detroit (1952); junior engineer with Burroughs Corporation Research Laboratories, Philadelphia (1952-1953); and engineer with Bendix Aviation Corporation, Detroit (1953-1957) where Kearns supervised and directed of a group of engineers responsible for the design of computer components, servomechanisms, control systems and related devices. Other duties included planning, liaison with other Bendix divisions, establishing test equipment requirements, as well as technical specifications and reports. In 1957, Kearns joined the faculty of Wayne State University, Department of Engineering Mechanics, as an assistant professor (1957-1963), later becoming an associate professor (1963-1967).

Kearns also established two independent businesses, the engineering firms of Kearns and Law (1963-1976) and Computer Central (1965-1976). Founded with partner Kenneth J. Law, an electrical engineer, Kearns and Law provided industry with consultation, research, design, and development services in the fields of computers, automatic controls and instrumentation. Computer Central manufactured a series of control components such as the Linear Range Comparator, Sign or Equality Binary Comparator, Identity Comparator, Dual Brush V-Scan Encoder Electronics, Gray Code to Binary Code Encoder Electronics, and Digital Difference to Analog Converters. Kearns served as Detroit's Commissioner of Buildings and Safety Engineering (1967-1971), where he acted as an administrator, overseeing professional engineering activities such as building inspections. Kearns moved to Gaithersburg, Maryland in 1971 to become principal investigator for the highway skid resistance program at the National Bureau of Standards, now the National Institute of Standards and Technology (1971-1976).

In 1967, Kearns invented and patented an electronic windshield wiper system with intermittent operation (US 3,351,836). Previous wiper systems were controlled by vacuum tubes. He installed his device on his 1962 Ford Galaxy and met with Ford Motor Company and Chrysler Corporation in 1963 with the goal of manufacturing his idea and being a supplier to the auto industry. Kearns tried to commercialize the wiper through the Tann Corporation. In 1969, Kearns's intermittent windshield wiper was installed on Ford cars without his knowledge. He ultimately filed suit against Ford for patent infringement in 1978 (representing himself as Kearns Associates), seeking $141 million in damages (a figure eventually raised to $325 million). Kearns's purpose in pursuing litigation was not a cash award. Rather, he wanted the rightful ownership. In all, he filed lawsuits against 26 car manufacturers and other companies concerning the same patent (US 3,351,836). In July 1990, a federal jury ruled that Ford had unintentionally infringed on Kearns's patent and awarded him $10.2 million. In June 1992, Kearns was awarded $11 million from Chrysler. Kearns held over 30 patents, with the majority relating to windshield wipers.

Kearns died in 2005. He married Phyllis Hall (1932-2013) in 1953, divorcing in 1989. The couple had six children: Dennis Kearns (b.1954); Timothy Kearns (b.1956); Patrick Kearns (b.1958); Kathleen Corsetty (b. 1961); Maureen Kearns (b. 1964); and Bob Kearns (b. 1967).

Provenance:

Collection donated by the Estate of Robert W. Kearns, through Dennis Kearns and Maureen Kearns, 2016.

Restrictions:

Collection is open for research but is stored off-site and special arrangements must be made to work with it. Contact the Archives Center for information at archivescenter@si.edu or 202-633-3270.

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.

Occupation:

Inventors  Search this

Topic:

Inventions -- 20th century  Search this

Windshield wipers  Search this

Automobiles -- Design and construction  Search this

Genre/Form:

Reports -- 20th century

Trade literature -- 20th century

Patents -- 20th century

Photographs -- 20th century

Drawings -- 20th century

Notebooks -- 20th century

Correspondence -- 20th century

Memorandums -- 20th century

Citation:

Robert W. Kearns Papers, 1963-1992, Archives Center, National Museum of American History

Identifier:

NMAH.AC.1406

See more items in:

Robert W. Kearns Papers

Archival Repository:

Archives Center, National Museum of American History

GUID:

https://n2t.net/ark:/65665/ep83c37ebc7-5f04-40bc-bd53-98f10a2b4809

EDAN-URL:

ead_collection:sova-nmah-ac-1406

Maker:

Western Electric  Search this

Measurements:

overall: 4 1/2 in x 2 1/4 in; 11.43 cm x 5.715 cm

Object Name:

triode

Date made:

ca 1917

ID Number:

EM.322905

Catalog number:

322905

Accession number:

250988

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746ac-ab84-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_1348669

Maker:

Western Electric  Search this

Measurements:

overall: 11 in x 2.25 cm; 27.94 cm x 7/8 in

Object Name:

triode

Date made:

ca 1917

ca. 1918

Credit Line:

from Theodore W. Case

ID Number:

EM.309155.01

Catalog number:

309155.01

Accession number:

63700

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746ad-5eeb-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_1409805

Maker:

Western Electric  Search this

Measurements:

overall: 4 1/4 in x 2 3/8 in; 10.795 cm x 6.0325 cm

Object Name:

Electron Tube

vacuum tube

triode

Other Terms:

Electron Tube; Electron Tubes

Date made:

ca 1917

Credit Line:

from Susan Horle

ID Number:

EM.313967

Catalog number:

313967

Accession number:

195337

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a5-2110-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_702071

Maker:

Western Electric  Search this

Measurements:

overall: 4 1/8 in x 2 3/8 in; 10.4775 cm x 6.0325 cm

Object Name:

Electron Tube

vacuum tube

electron tube

Other Terms:

Electron Tube; Electron Tubes

Date made:

ca 1917

Credit Line:

from General Electric Research Laboratory, thru W. C. White and J. R. Morgan

ID Number:

EM.315601

Catalog number:

315601

Accession number:

220105

Collector/donor number:

66

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a5-186a-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_702212

Maker:

Western Electric  Search this

Measurements:

overall: 4 1/8 in x 2 3/8 in; 10.4775 cm x 6.0325 cm

Object Name:

Electron Tube

vacuum tube

triode

Other Terms:

Electron Tube; Electron Tubes

Date made:

ca 1917

Credit Line:

from Franklin Wingard

ID Number:

EM.322867

Catalog number:

322867

Accession number:

241556

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a5-271a-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_703464

Maker:

Western Electric  Search this

Physical Description:

cardboard (?? material)

Measurements:

overall: 3 3/4 in x 1 3/8 in; 9.525 cm x 3.4925 cm

Object Name:

Electron Tube

vacuum tube

triode

Other Terms:

Electron Tube; Electron Tubes

Date made:

ca. 1918

ca 1917

Credit Line:

from Theodore W. Case

ID Number:

EM.309155.04

Accession number:

63700

Catalog number:

309155.04

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a5-3c9f-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_703579

Maker:

Western Electric  Search this

Measurements:

overall: 3 3/4 in x 1 3/8 in; 9.525 cm x 3.4925 cm

Object Name:

Electron Tube

vacuum tube

triode

Other Terms:

Electron Tube; Electron Tubes

Date made:

ca 1917

ca. 1918

Credit Line:

from Theodore W. Case

ID Number:

EM.309155.03

Accession number:

63700

Catalog number:

309155.03

See more items in:

Work and Industry: Electricity

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a5-3ca0-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_703580

Maker:

Western Electric  Search this

Measurements:

overall: 4 1/2 in x 2 3/8 in; 11.43 cm x 6.0325 cm

Object Name:

Triode

electron tube

Other Terms:

Triode; Electron Tubes

Date made:

C. 1918

Date made:

ca 1917

ID Number:

EM.322906

Accession number:

250988

Catalog number:

322906

See more items in:

Work and Industry: Electricity

Communications

Data Source:

National Museum of American History

GUID:

http://n2t.net/ark:/65665/ng49ca746a5-20f7-704b-e053-15f76fa0b4fa

EDAN-URL:

edanmdm:nmah_704272