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Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

[T.D. Dutton and J.J. Boone, radio broadcasters of the American Telephone and Telegraph Co., testing the installation for broadcasting the inaugural ceremonies]

[T.D. Dutton and J.J. Boone, radio broadcasters of the American Teleph...

National Photo Company Collection. Item in album: v. 2, p. 16, no. 42122.

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Science and research. Mineral prospecting. Electrical prospecting for metallic minerals may be carried on by using the dual coil radiometer to measure the electro-magnetic field of the earth, as it may be influenced by the presence of an ore body. Students training for war jobs in the minerals industry, or for service with the armed forces, are shown hunting for ore. A student at the left operates the field generator. The coils about the middles of the two others are made up of many strands of copper wire which act as transformers. The student second from right watches the level on his stationary coil to measure the electro-magnetic field. After completion of training, many students will be given commissions in naval ordnance, where they will use electronics for airplane detection. Colorado School of Mines, Golden, Colorado

Science and research. Mineral prospecting. Electrical prospecting for ...

Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

U.S. Naval Base, Pearl Harbor, Electronics Shop, Kuahua Peninsula, West of Jarvis Street, Pearl City, Honolulu County, HI

U.S. Naval Base, Pearl Harbor, Electronics Shop, Kuahua Peninsula, Wes...

Significance: The U.S. Naval Base at Pearl Harbor was designated a National Historic Landmark in 1964. As a Category 3 structure, it has been determined that Building No. 469 functioned as part of the Pearl Ha... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Electronics technician, Goodyear Aircraft Corp., Akron, Ohio

Electronics technician, Goodyear Aircraft Corp., Akron, Ohio

Public domain photograph of a woman, female portrait, free to use, no copyright restrictions image - Picryl description

Margaret Henschel, an employee at the Intel Corporation's wafer fabrication facility in Chandler, Arizona, moves through its cleanroom in her industrial "bunny suit"

Margaret Henschel, an employee at the Intel Corporation's wafer fabric...

Making computer chips is a complex process requiring hundreds of precisely controlled steps that result in patterned layers of various materials built one on top of another. A photolithographic "printing" proce... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Minneapolis Warehouse District, Acme Electronics, Third Avenue North, Minneapolis, Hennepin County, MN

Minneapolis Warehouse District, Acme Electronics, Third Avenue North, ...

Survey number: HABS MN-110-D Public domain photograph of shopping center, department store building, free to use, no copyright restrictions image - Picryl description

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Lee De Forest's schematic diagrams and scientific notes on hotel stationery, ca. 1915

Lee De Forest's schematic diagrams and scientific notes on hotel stati...

Reproduction number: A27 (color slide; page 1); A28 (color slide; page 2) The prolific American inventor Lee De Forest (1873-1961), is one of several contenders for the title "Father of Radio." Having obtained ... More

U.S. Naval Base, Pearl Harbor, Electronics Shop, Kuahua Peninsula, West of Jarvis Street, Pearl City, Honolulu County, HI

U.S. Naval Base, Pearl Harbor, Electronics Shop, Kuahua Peninsula, Wes...

Significance: The U.S. Naval Base at Pearl Harbor was designated a National Historic Landmark in 1964. As a Category 3 structure, it has been determined that Building No. 469 functioned as part of the Pearl Ha... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Lee De Forest's schematic diagrams and scientific notes on hotel stationery, ca. 1915

Lee De Forest's schematic diagrams and scientific notes on hotel stati...

Reproduction number: A27 (color slide; page 1); A28 (color slide; page 2) The prolific American inventor Lee De Forest (1873-1961), is one of several contenders for the title "Father of Radio." Having obtained ... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Science and research. Mineral prospecting. A ground comparator will reveal the presence of an ore body under the surface of the earth by measuring the total intensity and the plane of polarization of the secondary electro-magnetic field set up by the ore body. These students are using an adjustable coil of copper wire which acts as an electrical transformer, and may be tilted to determine the minimum and maximum intensity of the field. They are conducting an experiment in electronics, taught in the department of geophysics at a famous mining engineering school. They will apply the knowledge they are acquiring to airplane detection and anti-submarine warfare. Colorado School of Mines, Golden, Colorado

Science and research. Mineral prospecting. A ground comparator will re...

Public domain photograph related to electrical equipment, industrial development, free to use, no copyright restrictions image - Picryl description

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

U.S. Naval Base, Pearl Harbor, Electronics Shop, Kuahua Peninsula, West of Jarvis Street, Pearl City, Honolulu County, HI

U.S. Naval Base, Pearl Harbor, Electronics Shop, Kuahua Peninsula, Wes...

Significance: The U.S. Naval Base at Pearl Harbor was designated a National Historic Landmark in 1964. As a Category 3 structure, it has been determined that Building No. 469 functioned as part of the Pearl Ha... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centinela Avenue, Los Angeles, Los Angeles County, CA

Hughes Aircraft Company, Processing & Electronics Building, 6775 Centi...

Significance: Construction of the original portion of Building 5, the first building of the Culver City complex, was begun in January and completed by the weekend of July 4th, 1941, when the Hughes Aircraft Com... More

Department of Energy, Mound Facility, Electronics Laboratory Building (E Building), One Mound Road, Miamisburg, Montgomery County, OH

Department of Energy, Mound Facility, Electronics Laboratory Building ...

Significance: E Building is significant for its operational role in the polonium processing mission of the Mound Laboratory, polonium having importance in the 1940s for its use in nuclear weapon manufacture and... More

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Center, I Street, terminus west of Cedar Avenue, Vallejo, Solano County, CA

Mare Island Naval Shipyard, Defense Electronics Equipment Operating Ce...

Significance: Building 505 is a contributing element of the Mare Island Historic District. Building 505 is significant for its association with the communications facility at Mare Island, one of many non-shipy... More