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Applications Technology Satellite 6 (ATS 6), Earth Viewing Module

Manufacturer:
Fairchild  Search this
Materials:
Aluminum, copper, plastic
Dimensions:
Overall: 5ft 5in. x 4ft 6in. x 4ft 6in., 1560lb. (165.1 x 137.2 x 137.2cm, 707.6kg)
Type:
SPACECRAFT-Uncrewed-Parts & Structural Components
Country of Origin:
United States of America
Credit Line:
Transferred from NASA
Inventory Number:
A19780218000
Restrictions & Rights:
Usage conditions apply
See more items in:
National Air and Space Museum Collection
Data Source:
National Air and Space Museum
GUID:
http://n2t.net/ark:/65665/nv9e174cc29-0dea-4c31-bb25-ec7f540e18f7
EDAN-URL:
edanmdm:nasm_A19780218000

Travel Air D4D

Manufacturer:
Travel Air Company  Search this
Materials:
Fuselage - steel tube, fabric-covered
Wings - spruce spars, spruce and plywood ribs, fabric covered
Landing gear - all-metal
Dimensions:
Wingspan: 9.3 m (30 ft 5 in)
Length: 7.3 m (24 ft 1 in)
Height: 2.4 m (8 ft 11 in)
Weight, empty: 891 kg (1,968 lb)
Weight, gross: 1,200 kg (2,650 lb)
Top speed: 209 km/h (130 mph)
Engine: Wright J-6-7 (R-760-ET), 240 hp
Type:
CRAFT-Aircraft
Date:
1929-2000
Credit Line:
Gift of the Pepsi-Cola Company
Inventory Number:
A20010091000
Restrictions & Rights:
CC0
See more items in:
National Air and Space Museum Collection
Location:
Steven F. Udvar-Hazy Center in Chantilly, VA
Exhibit Station:
Aerobatic Flight
Data Source:
National Air and Space Museum
GUID:
http://n2t.net/ark:/65665/nv9ecadc4e9-0b3c-4a7d-9a49-90f28c2c9cd1
EDAN-URL:
edanmdm:nasm_A20010091000
Online Media:

Piper PA-12 Super Cruiser

Pilot:
Clifford Evans  Search this
Manufacturer:
Piper Aircraft Corp.  Search this
Materials:
Fuselage: steel tube with fabric cover
Dimensions:
Wingspan: 10.8 m (35 ft 5 in)
Length: 6.86 m (22 ft 6 in)
Height: 2.08 m (6 ft 10 in)
Weight, empty: 454 kg (1,000 lb)
Weight, gross: 793 kg (1,750 lb)
Top Speed: 184 km/h (115 mph)
Engine: Lycoming O-235-C, 100 hp
Type:
CRAFT-Aircraft
Country of Origin:
United States of America
Date:
1946
Credit Line:
Gift of Piper Aircraft Company
Inventory Number:
A19500101000
Restrictions & Rights:
CC0
See more items in:
National Air and Space Museum Collection
Location:
Steven F. Udvar-Hazy Center in Chantilly, VA
Exhibit Station:
Sport Aviation
Data Source:
National Air and Space Museum
GUID:
http://n2t.net/ark:/65665/nv9db01c8a1-88c4-4be9-8588-12e04cf6f1ff
EDAN-URL:
edanmdm:nasm_A19500101000
Online Media:

Westinghouse Aircraft Radio Communication Equipment Sold to Royal Japanese Navy

Collection Creator:
Laport, Edmund A.  Search this
Container:
Box 1, Folder 21
Type:
Archival materials
Date:
1927
Collection Restrictions:
Collection is open for research.
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.
Collection Citation:
Edmund A. Laport Collection, Archives Center, National Museum of American History.
See more items in:
Edmund A. Laport Collection
Edmund A. Laport Collection / Series 1: Photographs
Archival Repository:
Archives Center, National Museum of American History
GUID:
https://n2t.net/ark:/65665/ep85f98b9e0-9a81-4d9e-868e-2e3e86410b74
EDAN-URL:
ead_component:sova-nmah-ac-0016-ref29

Aviation communication equipment

Collection Author:
Roess, Harold R.D. (radio engineer)  Search this
Container:
Box 5, Folder 10
Type:
Archival materials
Collection Restrictions:
Collection is open for research.
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.
Collection Citation:
Harold R. D. Roess Papers, ca. 1920-1964, Archives Center, National Museum of American History
See more items in:
Harold R. D. Roess Papers
Harold R. D. Roess Papers / Series 3: Radio Materials
Archival Repository:
Archives Center, National Museum of American History
GUID:
https://n2t.net/ark:/65665/ep89b7f3bea-4c6e-4474-a3c1-7129205ae009
EDAN-URL:
ead_component:sova-nmah-ac-0048-ref72

Western Union Telegraph Company Records

Creator:
United Telegraph Workers.  Search this
Western Union Telegraph Company  Search this
Extent:
452 Cubic feet (871 boxes and 23 map folders)
Type:
Collection descriptions
Archival materials
Administrative records
Articles
Books
Clippings
Contracts
Drawings
Photographs
Patents
Newsletters
Photograph albums
Scrapbooks
Specifications
Technical documents
Date:
circa 1820-1995
Summary:
The collection documents in photographs, scrapbooks, notebooks, correspondence, stock ledgers, annual reports, and financial records, the evolution of the telegraph, the development of the Western Union Telegraph Company, and the beginning of the communications revolution. The collection materials describe both the history of the company and of the telegraph industry in general, particularly its importance to the development of the technology in the nineteenth and twentieth centuries. The collection is useful for researchers interested in the development of technology, economic history, and the impact of technology on American social and cultural life.
Scope and Contents:
The collection is divided into twenty-six (26) series and consists of approximately 400 cubic feet. The collection documents in photographs, scrapbooks, notebooks, correspondence, stock ledgers, annual reports, and financial records, the evolution of the telegraph, the development of the Western Union Telegraph Company, and the beginning of the communications revolution. The collection materials describe both the history of the company and of the telegraph industry in general, particularly its importance to the development of the technology in the nineteenth and twentieth centuries. The collection is useful for researchers interested in the development of technology, economic history, and the impact of technology on American social and cultural life.
Arrangement:
The collection is divided into twenty-seven series.

Series 1: Historical and Background Information, 1851-1994

Series 2: Subsidiaries of Western Union, 1844-1986

Series 3: Executive Records, 1848-1987

Series 4: Presidential Letterbooks and Writings, 1865-1911

Series 5: Correspondence, 1837-1985

Series 6: Cyrus W. Field Papers, 1840-1892

Series 7: Secretary's Files, 1844-1987

Series 8: Financial Records, 1859-1995

Series 9: Legal Records, 1867-1968

Series 10: Railroad Records, 1854-1945

Series 11: Law Department Records, 1868-1979

Series 12: Patent Materials, 1840-1970

Series 13: Operating Records, 1868-1970s

Series 14: Westar VI-S, 1974, 1983-1986

Series 15: Engineering Department Records, 1874-1970

Series 16: Plant Department Records, 1867-1937, 1963

Series 17: Superintendent of Supplies Records, 1888-1948

Series 18: Employee/Personnel Records 1852-1985

Series 19: Public Relations Department Records, 1858-1980

Series 20: Western Union Museum, 1913-1971

Series 21: Maps, 1820-1964

Series 22: Telegrams, 1852-1960s

Series 23: Photographs, circa 1870-1980

Series 24: Scrapbooks, 1835-1956

Series 25: Notebooks, 1880-1942

Series 26: Audio Visual Materials, 1925-1994

Series 27: Addenda
Biographical / Historical:
In 1832 Samuel F. B. Morse, assisted by Alfred Vail, conceived of the idea for an electromechanical telegraph, which he called the "Recording Telegraph." This commercial application of electricity was made tangible by their construction of a crude working model in 1835-36. This instrument probably was never used outside of Professor Morse's rooms where it was, however, operated in a number of demonstrations. This original telegraph instrument was in the hands of the Western Union Telegraph Company and had been kept carefully over the years in a glass case. It was moved several times in New York as the Western Union headquarters building changed location over the years. The company presented it to the Smithsonian Institution in 1950.

The telegraph was further refined by Morse, Vail, and a colleague, Leonard Gale, into working mechanical form in 1837. In this year Morse filed a caveat for it at the U.S. Patent Office. Electricity, provided by Joseph Henry's 1836 "intensity batteries", was sent over a wire. The flow of electricity through the wire was interrupted for shorter or longer periods by holding down the key of the device. The resulting dots or dashes were recorded on a printer or could be interpreted orally. In 1838 Morse perfected his sending and receiving code and organized a corporation, making Vail and Gale his partners.

In 1843 Morse received funds from Congress to set-up a demonstration line between Washington and Baltimore. Unfortunately, Morse was not an astute businessman and had no practical plan for constructing a line. After an unsuccessful attempt at laying underground cables with Ezra Cornell, the inventor of a trench digger, Morse switched to the erection of telegraph poles and was more successful. On May 24, 1844, Morse, in the U.S. Supreme Court Chambers in Washington, sent by telegraph the oft-quoted message to his colleague Vail in Baltimore, "What hath God wrought!"

In 1845 Morse hired Andrew Jackson's former postmaster general, Amos Kendall, as his agent in locating potential buyers of the telegraph. Kendall realized the value of the device, and had little trouble convincing others of its potential for profit. By the spring he had attracted a small group of investors. They subscribed $15,000 and formed the Magnetic Telegraph Company. Many new telegraph companies were formed as Morse sold licenses wherever he could.

The first commercial telegraph line was completed between Washington, D.C., and New York City in the spring of 1846 by the Magnetic Telegraph Company. Shortly thereafter, F. O. J. Smith, one of the patent owners, built a line between New York City and Boston. Most of these early companies were licensed by owners of Samuel Morse patents. The Morse messages were sent and received in a code of dots and dashes.

At this time other telegraph systems based on rival technologies were being built. Some companies used the printing telegraph, a device invented by a Vermonter, Royal E. House, whose messages were printed on paper or tape in Roman letters. In 1848 a Scotch scientist, Alexander Bain, received his patents on a telegraph. These were but two of many competing and incompatible technologies that had developed. The result was confusion, inefficiency, and a rash of suits and counter suits.

By 1851 there were over fifty separate telegraph companies operating in the United States. This corporate cornucopia developed because the owners of the telegraph patents had been unsuccessful in convincing the United States and other governments of the invention's potential usefulness. In the private sector, the owners had difficulty convincing capitalists of the commercial value of the invention. This led to the owners' willingness to sell licenses to many purchasers who organized separate companies and then built independent telegraph lines in various sections of the country.

Hiram Sibley moved to Rochester, New York, in 1838 to pursue banking and real estate. Later he was elected sheriff of Monroe County. In Rochester he was introduced to Judge Samuel L. Selden who held the House Telegraph patent rights. In 1849 Selden and Sibley organized the New York State Printing Telegraph Company, but they found it hard to compete with the existing New York, Albany, and Buffalo Telegraph Company.

After this experience Selden suggested that instead of creating a new line, the two should try to acquire all the companies west of Buffalo and unite them into a single unified system. Selden secured an agency for the extension throughout the United States of the House system. In an effort to expand this line west, Judge Selden called on friends and the people in Rochester. This led, in April 1851, to the organization of a company and the filing in Albany of the Articles of Association for the "New York and Mississippi Valley Printing Telegraph Company" (NYMVPTC), a company which later evolved into the Western Union Telegraph Company.

In 1854 there were two rival systems of the NYMVPTC in the West. These two systems consisted of thirteen separate companies. All the companies were using Morse patents in the five states north of the Ohio River. This created a struggle between three separate entities, leading to an unreliable and inefficient telegraph service. The owners of these rival companies eventually decided to invest their money elsewhere and arrangements were made for the NYMVPTC to purchase their interests.

Hiram Sibley recapitalized the company in 1854 under the same name and began a program of construction and acquisition. The most important takeover was carried out by Sibley when he negotiated the purchase of the Morse patent rights for the Midwest for $50,000 from Jeptha H. Wade and John J. Speed, without the knowledge of Ezra Cornell, their partner in the Erie and Michigan Telegraph Company (EMTC). With this acquisition Sibley proceeded to switch to the superior Morse system. He also hired Wade, a very capable manager, who became his protege and later his successor. After a bitter struggle Morse and Wade obtained the EMTC from Cornell in 1855, thus assuring dominance by the NYMVPTC in the Midwest. In 1856 the company name was changed to the "Western Union Telegraph Company," indicating the union of the Western lines into one compact system. In December, 1857, the Company paid stockholders their first dividend.

Between 1857 and 1861 similar consolidations of telegraph companies took place in other areas of the country so that most of the telegraph interests of the United States had merged into six systems. These were the American Telegraph Company (covering the Atlantic and some Gulf states), The Western Union Telegraph Company (covering states North of the Ohio River and parts of Iowa, Kansas, Missouri, and Minnesota), the New York Albany and Buffalo Electro-Magnetic Telegraph Company (covering New York State), the Atlantic and Ohio Telegraph Company (covering Pennsylvania), the Illinois & Mississippi Telegraph Company (covering sections of Missouri, Iowa, and Illinois), and the New Orleans & Ohio Telegraph Company (covering the southern Mississippi Valley and the Southwest). All these companies worked together in a mutually friendly alliance, and other small companies cooperated with the six systems, particularly some on the West Coast.

By the time of the Civil War, there was a strong commercial incentive to construct a telegraph line across the western plains to link the two coasts of America. Many companies, however, believed the line would be impossible to build and maintain.

In 1860 Congress passed, and President James Buchanan signed, the Pacific Telegraph Act, which authorized the Secretary of the Treasury to seek bids for a project to construct a transcontinental line. When two bidders dropped out, Hiram Sibley, representing Western Union, was the only bidder left. By default Sibley won the contract. The Pacific Telegraph Company was organized for the purpose of building the eastern section of the line. Sibley sent Wade to California, where he consolidated the small local companies into the California State Telegraph Company. This entity then organized the Overland Telegraph Company, which handled construction eastward from Carson City, Nevada, joining the existing California lines, to Salt Lake City, Utah. Sibley's Pacific Telegraph Company built westward from Omaha, Nebraska. Sibley put most of his resources into the venture. The line was completed in October, 1861. Both companies were soon merged into Western Union. This accomplishment made Hiram Sibley leader of the telegraph industry.

Further consolidations took place over the next several years. Many companies merged into the American Telegraph Company. With the expiration of the Morse patents, several organizations were combined in 1864 under the name of "The U.S. Telegraph Company." In 1866 the final consolidation took place, with Western Union exchanging stock for the stock of the other two organizations. The general office of Western Union moved at this time from Rochester to 145 Broadway, New York City. In 1875 the main office moved to 195 Broadway, where it remained until 1930 when it relocated to 60 Hudson Street.

In 1873 Western Union purchased a majority of shares in the International Ocean Telegraph Company. This was an important move because it marked Western Union's entry into the foreign telegraph market. Having previously worked with foreign companies, Western Union now began competing for overseas business.

In the late 1870s Western Union, led by William H. Vanderbilt, attempted to wrest control of the major telephone patents, and the new telephone industry, away from the Bell Telephone Company. But due to new Bell leadership and a subsequent hostile takeover attempt of Western Union by Jay Gould, Western Union discontinued its fight and Bell Telephone prevailed.

Despite these corporate calisthenics, Western Union remained in the public eye. The sight of a uniformed Western Union messenger boy was familiar in small towns and big cities all over the country for many years. Some of Western Union's top officials in fact began their careers as messenger boys.

Throughout the remainder of the nineteenth century the telegraph became one of the most important factors in the development of social and commercial life of America. In spite of improvements to the telegraph, however, two new inventions--the telephone (nineteenth century) and the radio (twentieth century)--eventually replaced the telegraph as the leaders of the communication revolution for most Americans.

At the turn of the century, Bell abandoned its struggles to maintain a monopoly through patent suits, and entered into direct competition with the many independent telephone companies. Around this time, the company adopted its new name, the American Telephone and Telegraph Company (AT&T).

In 1908 AT&T gained control of Western Union. This proved beneficial to Western Union, because the companies were able to share lines when needed, and it became possible to order telegrams by telephone. However, it was only possible to order Western Union telegrams, and this hurt the business of Western Union's main competitor, the Postal Telegraph Company. In 1913, however, as part of a move to prevent the government from invoking antitrust laws, AT&T completely separated itself from Western Union.

Western Union continued to prosper and it received commendations from the U.S. armed forces for service during both world wars. In 1945 Western Union finally merged with its longtime rival, the Postal Telegraph Company. As part of that merger, Western Union agreed to separate domestic and foreign business. In 1963 Western Union International Incorporated, a private company completely separate from the Western Union Telegraph Company, was formed and an agreement with the Postal Telegraph Company was completed. In 1994, Western Union Financial Services, Inc. was acquired by First Financial Management Corporation. In 1995, First Financial Management Corporation merged with First Data Corporation making Western Union a First Data subsidiary.

Many technological advancements followed the telegraph's development. The following are among the more important:

The first advancement of the telegraph occurred around 1850 when operators realized that the clicks of the recording instrument portrayed a sound pattern, understandable by the operators as dots and dashes. This allowed the operator to hear the message by ear and simultaneously write it down. This ability transformed the telegraph into a versatile and speedy system.

Duplex Telegraphy, 1871-72, was invented by the president of the Franklin Telegraph Company. Unable to sell his invention to his own company, he found a willing buyer in Western Union. Utilizing this invention, two messages were sent over the wire simultaneously, one in each direction.

As business blossomed and demand surged, new devices appeared. Thomas Edison's Quadruplex allowed four messages to be sent over the same wire simultaneously, two in one direction and two in the other.

An English automatic signaling arrangement, Wheatstone's Automatic Telegraph, 1883, allowed larger numbers of words to be transmitted over a wire at once. It could only be used advantageously, however, on circuits where there was a heavy volume of business.

Buckingham's Machine Telegraph was an improvement on the House system. It printed received messages in plain Roman letters quickly and legibly on a message blank, ready for delivery.

Vibroplex, c. 1890, a semi-automatic key sometimes called a "bug key," made the dots automatically. This relieved the operator of much physical strain.
Related Materials:
Materials in the Archives Center

Additional moving image about Western Union Telegraph Company can be found in the Industry on Parade Collection (AC0507). This includes Cable to Cuba! by Bell Laboratory, AT & T, featuring the cable ship, the C.S. Lord Kelvin, and Communications Centennial! by the Western Union Company.

Materials at Other Organizations

Hagley Museum and Library, Wilmington, Delaware.

Western Union International Records form part of the MCI International, Inc. Records at the First Data Corporation, Greenwood Village, Colorado.

Records of First Data Corporation and its predecessors, including Western Union, First Financial Management Corporation (Atlanta) and First Data Resources (Omaha). Western Union collection supports research of telegraphy and related technologies, and includes company records, annual reports, photographs, print and broadcast advertising, telegraph equipment, and messenger uniforms.

Smithsonian Institution Archives

Western Union Telegraph Expedition, 1865-1867

This collection includes correspondence, mostly to Spencer F. Baird, from members of the Scientific Corps of the Western Union Telegraph Expedition, including Kennicott, Dall, Bannister, and Elliott; copies of reports submitted to divisional chiefs from expedition staff members; newspaper clippings concerning the expedition; copies of notes on natural history taken by Robert Kennicott; and a journal containing meteorological data recorded by Henry M. Bannister from March to August, 1866.
Separated Materials:
Artifacts (apparatus and equipment) were donated to the Division of Information Technology and Society, now known as the Division of Work & Industry, National Museum of American History.
Provenance:
The collection was donated by Western Union in September of 1971.
Restrictions:
Collection is open for research but Series 11 and films are stored off-site. Special arrangements must be made to view some of the audiovisual materials. 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.
Topic:
Communications equipment  Search this
Communication -- International cooperation  Search this
Electric engineering  Search this
Electric engineers  Search this
Electrical equipment  Search this
Electrical science and technology  Search this
Telegraphers  Search this
Telegraph  Search this
Genre/Form:
Administrative records
Articles
Books
Clippings
Contracts
Drawings
Photographs -- 19th century
Patents
Photographs -- 20th century
Newsletters
Photograph albums
Scrapbooks -- 19th century
Scrapbooks -- 20th century
Specifications
Technical documents
Citation:
Western Union Telegraph Company Records, Archives Center, National Museum of American History
Identifier:
NMAH.AC.0205
See more items in:
Western Union Telegraph Company Records
Archival Repository:
Archives Center, National Museum of American History
GUID:
https://n2t.net/ark:/65665/ep8b72e8493-288c-4bd0-84d5-011155da30a7
EDAN-URL:
ead_collection:sova-nmah-ac-0205
Online Media:

T. R. W., Communication Equipment

Subseries Creator:
Scurlock, Addison N., 1883-1964  Search this
Custom Craft  Search this
Scurlock, Robert S. (Saunders), 1917-1994  Search this
Scurlock Studio (Washington, D.C.)  Search this
Scurlock, George H. (Hardison), 1919-2005  Search this
Container:
Box 14
Type:
Archival materials
Date:
1977 March 1
Scope and Contents note:
Job Number: 6694
Subseries Restrictions:
Collection is open for research.

Series 8: Business Records, Subseries 8.1: Studio Session Registers are restricted. Digital copies available for research. See repository for details.

Gloves must be worn when handling unprotected photographs and negatives. Special arrangements required to view negatives due to cold storage. Using negatives requires a three hour waiting period. Contact the Archives Center at 202-633-3270.
Subseries Rights:
When the Museum purchased the collection from the Estate of Robert S. Scurlock, it obtained all rights, including copyright. The earliest photographs in the collection are in the public domain because their term of copyright has expired. The Archives Center will control copyright and the use of the collection for reproduction purposes, which will be handled in accordance with its standard reproduction policy guidelines. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Subseries Citation:
Scurlock Studio Records, Archives Center, National Museum of American History. Smithsonian Institution
See more items in:
Scurlock Studio Records, Subseries 4.11: Customcraft Negatives
Scurlock Studio Records, Subseries 4.11: Customcraft Negatives / 4.11: Customcraft Negatives
Archival Repository:
Archives Center, National Museum of American History
GUID:
https://n2t.net/ark:/65665/ep8c65c2f40-f87a-429e-9b34-fcf96da31a2b
EDAN-URL:
ead_component:sova-nmah-ac-0618-s04-11-ref3239

Del Mar Avionics Holter Monitor Records

Inventor:
Del Mar, Bruce E., 1913-  Search this
Former owner:
Del Mar Avionics Corporation  Search this
Extent:
3 Cubic feet (8 boxes)
Type:
Collection descriptions
Archival materials
Correspondence
Date:
1951-2011
Summary:
Collection documents the development of the Holter Monitor, a portable device for continuously monitoring heart activity for an extended period, through engineering logbooks, drawings, operator manuals, correspondence, photographs, sales brochures and catalogs, biographical information about the engineering staff who worked on the monitor, patents and trademarks, and marketing and sales materials.
Scope and Contents:
The collection includes engineering logbooks, drawings, operator manuals, correspondence, photographs, sales brochures and catalogs, biographical information about the engineering staff who worked on the monitor, patents and trademarks, and marketing and sales materials documenting the development of the Holter Monitor, a portable device for continuously monitoring heart activity.

The records document the successful collaboration of an independent inventor and a manufacturing firm to identify problems, develop solutions and bring to market diagnostic technologies. Bruce Del Mar's role as an innovator and collaborator with Holter is especially important, because Del Mar's work spurred the development of an entire diagnostic industry. In addition, the records also chronicle how "Holter technology" was affected by progressive technological innovations in the industry, as vacuum tubes were replaced by transistors, as microprocessors gave way to microchips and circuit boards, and as analog recordings were replaced by digital formats.

Documenting manufacturing developments (highs and lows) and marketing considerations is an important element in better understanding the invention process. Del Mar Avionics was the first to design and manufacture instrumentation for long-term monitoring of the human heart for the medical profession. Today, Holter Monitors continue to be an important diagnostic tool for monitoring the health of the heart.

Series 1, Historical Background, 1951-2010 and undated, consists of biographical materials for Bruce Del Mar, founder of Del Mar Avionics, company histories, copies of the Del Mar Avionics newsletter Pacemaker, employee information, newspaper clippings and ephemera, and photographs of some employees. The employee information contains a 1979 handbook, explaining company policies and the benefits of employment with Del Mar Avionics and a 1951 memo detailing overtime working hours for women, presumably from Douglas Aircraft, where Bruce Del Mar was employed.

Series 2, Del Mar Avionics Engineering, 1958-1976, is divided into three subseries, Subseries 1, Correspondence, 1965-1976; Subseries 2, Reports, 1964-1969; and Subseries 3, Drawings, 1958-1968. The documentation consists primarily of correspondence from the engineering department, 1965 to 1976, related to the development, design, budgeting, testing, and marketing of the Holter Monitor. The majority of the documentation is correspondence and is written by engineering staff members, but also included are quotation requests, trip reports, and technical reports. Correspondence between Holter and Del Mar about the development of the Holter Minotor is in Series 6. The drawings, 1958-1968, include six drawings (22" x 34" or smaller) for Avionics Research Products projects (panel assembly, chassis assembly, and battery chargers for model 602), and Electromation Company (degausser single coil).

Series 3, Patents and Trademarks, 1965-2002 and undated, consists of copies of patents by Norman J. Holter, W.E. Mills, and W.E. Thornton, Cliff Sanctuary. and Isaac Raymond Cherry related to the development of the Holter Monitor. Also included are lists of United States patents issued to Del Mar Avionics employees, as well as lists of registered trademarks and activities for Del Mar Avionics and copies of trademarks issued to the company.

Series 4, Product Literature, 1968-2010 and undated, consists of product literature for Del Mar Avionics products and some of its competitors. The product literature for Del Mar Avionics is arranged chronologically by model number, and the competitor literature is arranged alphabetically. All of the product literature is related to medical instrumentation with the exception of the Hydra Set, a precision load positioner which is the only product Del Mar Avionics sells today.

Series 5, Sales, 1967-1985, consists of price lists, price catalogs (both domestic and international) and sales objectives for medical instrumentation sold by Del Mar Avionics.

Series 6, Holter Monitor Materials, 1958-2005 and undated, is divided into three subseries, Subseries 1, Background Materials, 1958-2005 and undated; Subseries 2, Model 445, 1974-1978; and Subseries 3, Model 660, 1967-1978 and undated, and consists of materials documenting the relationship between Norman J. Holter, an inventor, and Del Mar Avionics.

Holter and Wilford R. Glassock were issued United States Patent 3,215,136 on November 2, 1965 for the Electrocardiographic Means. Dr. Eliot Corday introduced Holter to Bruce Del Mar, founder of the Del Mar Avionics Corporation in Irvine, California. Del Mar engineers developed the "electrocardiocorder" for clinical use, producing a commercially viable monitor which came to be known as the Holter Monitor Test. Further refinements led to the creation of a "minimonitor" in 1968 which was described by Holter as being the "size of a cigarette package." Commercial production of the Holter minimonitor, AVSEP, Jr., began in 1969. The Holter Research Foundation ultimately sold exclusive rights to their patents to Del Mar Engineering Laboratories.

The materials include biographical materials about Norman J. Holter, journal articles about the Holter Monitor, correspondence, engineering notebooks, a licensing agreement, product literature, reports, price lists, catalogs, operating manuals and specific information about the Dynamic Del Mar Avionics ElectroCardioCorder (Model 445), 1977, and the ElectroCardioScanner (Model 660), 1971. Both models were developed by Del Mar's medical device manufacturing staff. The licensing agreement and correspondence detail in chronological order the relationship between Norman Holter and Del Mar Avionics, specifically president Bruce Del Mar, in the rapid commercial marketing and development of Holter's electrocardiorecorder. Although Holter assigned exclusive rights to his patent to Del Mar Avionics, he was involved in the design and development process, albeit from a distance. The engineering staff at Del Mar kept Holter informed, and it is clear that Holter regularly visited the company.

The engineering notebooks relate to the models 445 and 660. The notebooks were maintained by engineering staff members D. Anderson, N. Mohammedi, Ray Cherry and Fike. The notebooks are handwritten, although in some instances memos and other information have been inserted. For example, N. Mohammedi's notebook documenting Model 445 contains black-and-white prints, magnetic tape samples, and recorder tape (EKG graph paper) samples with data from the monitor. The notebooks are bound and paginated, and individual pages are stamped sequentially.

Series 7, Slides, circa 1990s, consists of color slides used for presentations by Del Mar Avionics staff to discuss and promote the marketing of the Holter Monitor.
Arrangement:
The collection is arranged into seven series.

Series 1, Historical Background, 1951-2010 and undated

Series 2, Del Mar Avionics Engineering, 1958-1976

Subseries 1, Correspondence, 1965-1976

Subseries 2, Reports, 1964-1969

Subseries 3, Drawings, 1958-1968

Series 3, Patents and Trademarks, 1965-2002 and undated

Series 4, Product Literature, 1968-2010 and undated

Subseries 1, Del Mar Avionics, 1968-2010 and undated

Subseries 2, Competitors, 1974 and undated

Series 5, Sales, 1967-1985

Series 6, Holter Monitor Materials, 1958-2005

Subseries 1, Background Materials, 1958-2005

Subseries 2, Model 445, 1974-1978

Subseries 3, Model 660, 1967-1978 and undated

Series 7, Slides, circa 1990s
Biographical / Historical:
Norman Jefferis "Jeff" Holter (1914-1983) was born in Helena, Montana, to a prominent Montana pioneering family. After attending public schools in Helena, he earned master's degrees in chemistry from the University of Southern California (1938) and physics from the University of California, Los Angeles (1940). During these years Holter also organized Applied Micro Sciences, a scientific photography business, and began working with Dr. Joseph A. Gengerelli of UCLA on nerve stimulation in frogs and brain stimulation in rats. Holter's interest in studying electrical activity in humans in their daily activities without touching them, spawned his lifelong pursuit to develop the Holter Monitor.

During World War Two, Holter served as a senior physicist for the U.S. Navy's Bureau of Ships, conducting research into the behavior of ocean waves in preparation for wartime amphibious operations. After the war, in 1946, Holter headed a staff of oceanographic engineers at Bikini Atoll during Operation Crossroads, the first postwar atomic bomb tests, measuring wave actions and underwater disturbances caused by the explosions.

Because of demands of his family's business affairs, Holter returned to Helena in 1947 to continue his research activities. In 1947 he formed the Holter Research Foundation, with a laboratory originally located in the rear of the Holter Hardware Company building. From 1956 to 1971 the laboratory facilities were located in the Great Northern Railroad depot building in Helena. The foundation was initially funded by Holter and other members of his family, but in 1952 Holter began to receive grants from the National Institutes of Health (NIH).

Holter continued his collaboration with Dr. Gengerelli of UCLA in attempting to transmit information, primarily brain waves, by radio. Holter turned his attention from the brain to the heart because the heart's greater voltage made the electronics easier, and because heart disease was far more prevalent than cerebral disease. Holter's introduction to Dr. Paul Dudley White (1886-1973), a renowned physician and cardiologist, helped convince him to focus his research on recording electrical activity from the heart. Holter's goal was to radio broadcast and record the more obvious electrophysiological phenomena occurring in humans while carrying on their normal activities, rather than having to lie quietly on a couch.

The first broadcast of a radioelectrocardiogram (RECG) took place circa 1947 and required eighty to eighty-five pounds of equipment, which Holter worn on his back while riding a stationary bicycle. This was not practical and in no way could be worn by a patient. The initial transmitter and receiver required that the subject remain in the general area of the laboratory, so a portable and lighter RECG receiver-recorder had to be developed.

Next, Holter created a briefcase-like device that could be carried by a patient. By using very thin magnetic recording tape, twenty-four hours of RECG could be captured on a reel five inches in diameter. The initial method of examining the voluminous records from the tape recordings developed by Holter was called Audio-Visual Superimposed ECG Presentation (AVSEP). AVSEP made it possible to examine twenty-four hours of RECGs in twenty minutes, with signals being presented visually on an oscilloscope and audibly through a speaker.

With the development of transistors, radioelectrocardiography was made obsolete, and it became possible for the amplifier, tape recorder, temperature-control circuits, motor speed control circuits, and batteries to be placed in a single unit small enough for a coat pocket or purse. In 1952, Holter succeeded in creating a small unit that weighed 1 kilogram. Wilford R. Glassock, a senior engineer working with Holter, traveled to Cedars of Lebanon Hospital (now Cedars-Sinai Hospital of Los Angeles) in 1962 to demonstrate the Holter monitor system and discuss making it more practical. At Cedars, Dr. Eliot Corday observed the practicality of the system and not only embraced the technology, but collaborated with Holter's team and was an early promoter of the technology to both industry and physicians. Holter and Glassock were issued US Patent 3,215,136 on November 2, 1965 for the Electrocardiographic Means.

As articles describing the foundation's invention of these devices began to appear in the professional literature, there was considerable demand from doctors and hospitals for the equipment. Dr. Corday introduced Holter to Bruce Del Mar, founder of the Del Mar Avionics Corporation in Irvine, California. Del Mar engineers developed the "electrocardiocorder" for clinical use, producing a commercially viable monitor which came to be known as the Holter Monitor Test. Further refinements led to the creation of a "minimonitor" in 1968, which was described by Holter as being the "size of a cigarette package." Commercial production of the Holter minimonitor, AVSEP, Jr., began in 1969. The Holter Research Foundation ultimately sold exclusive rights to their patents to Del Mar Engineering Laboratories.

Later known as Del Mar Avionics, a team of engineers diverted their attention from successful manufacturing of military weapons training devices to focus on improving the speed and accuracy of computerized ECG analysis and they became the acknowledged leader in Holter monitoring technology for over 40 years. In 1969, because of the increased amount of required paper work and red tape, Holter canceled the grant funding his foundation had been receiving from NIH. He was also in constant conflict with the Internal Revenue Service over the foundation's non-profit status, rights to patents, and commercial production of equipment. The foundation continued to maintain a laboratory and conduct varied scientific work, but on a much smaller scale. The Holter Research Foundation, Inc. was dissolved in 1985, two years after Holter's death.

Del Mar Avionics was founded on January 9, 1952, as Del Mar Engineering Laboratories in Los Angeles, California by Bruce Del Mar, who led the development of aircraft cabin pressurization systems. Del Mar was born in Pasadena, California in 1913. An engineer, inventor, entrepreneur and businessman, Del Mar graduated from the University of California, Berkeley (1937) with a Bachelor of Science degree. Del Mar worked for Douglas Aircraft (1933-1951) as a research engineer on many projects before founding Del Mar Engineering Laboratories. In 1938, Del Mar married Mary Van Ness. The couple had two daughters, Patrica Jean Parsons and Marna Belle Schnabel.

In 1958, Del Mar formed a wholly-owned subsidiary, Electromation Inc., which manufactured tape recording and communication equipment. He later established, Aeroplastics Corporation to manufacture plastic products and Avionics Research Products Corporation to develop and produce biomedical instrumentation. By the mid-1960s, the company had become a leading U.S. Defense Department prime contractor in the development and production of aerial tow target systems for weapons training and instrumented ground targets for scoring air-to-ground automatic weapons delivery. It also produced helicopter target drones and helicopter flight trainers for the U.S. Army.

In 1961, the company entered the growing medical instrumentation market with the development of the first long-term ambulatory monitoring systems.

In 1965, the company introduced the Hydra Set Load Positioner that controls the precise vertical positioning of loads up to 300 tons (272,000 kg) in increments as small as 0.001 inch (0.025mm). This unique product, mounted between the load and the crane (or hoist), permits precise mating and de-mating of critical components, thus eliminating unforeseen damage to valuable loads. Hydra Set Load Positioners are in use worldwide in the aerospace, military/commercial aviation, nuclear and fossil fuel power generating industries and in various industrial applications. In 1975, the company, then re-named Del Mar Avionics, moved to its current location in Irvine, California.
Related Materials:
Materials in the Archives Center

Project Bionics Artificial Organ Documentation Collection [videotapes], 2002 (AC0841) documents the invention and development of artificial internal organs through oral history interviews with scientists and others involved.

The James A. E. Halkett and Sigmund A. Wesolowski, M.D., Papers, 1948-1951 (AC0200) documents Halkett and Wesolowski's experiments on an early mechanical heart. Halkett and Wesolow(ski) materials show the process of technological innovation through laboratory protocols.

The George Edward Burch Papers, 1984-1986 (AC0316) documents Burch's pioneering work in clinical cardiology and research through technical notes, diagrams, and correspondence regarding laboratory work on the "2-pump heart model," 1984-1986.

Wilson Greatbatch Innovative Lives Presentation, 1996 (AC0601) documents the invention of the implantable cardiac pacemaker in 1958.

The Ronald J. Leonard Papers, circa 1980-1997 (AC1109) documents Leonard's development of pumps and oxygenators used in cardio-pulmonary bypass surgery.

Materials in the Division of Medicine and Science, National Museum of American History

The Division of Medicine and Science (now Division of Medicine and Science) holds two monitors: the Dynamic and the Del Mar Avionics ElectroCardioCorder (Model 445), 1977 and the ElectroCardioScanner (Model 660), 1971. Both were developed by Del Mar's Medical Device Manufacturing staff. See accession #: 2011.0196.

Materials at the Montana Historical Society Research Center, Archives

Holter Family papers, 1861-1968

Includes documentation about the Holter Research Foundation, Inc.

Holter Research Foundation, Inc. records, 1914-1985

The Holter Research Foundation, Inc. was a private, non-profit, scientific research foundation started in Helena, Montana, in 1947 by Norman J. "Jeff" Holter. Records (1914-1985) include correspondence, financial records, laboratory records, subject files, photographs, etc. Also included are subgroups for N.J. Holter; his work in the U.S. Navy on bombs and waves; his work as assistant chancellor at University of California, San Diego; and the Society of Nuclear Medicine.
Provenance:
The collection was donated by Del Mar Avionics through Bruce Del Mar, President on September 12, 2011.
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.
Topic:
Medical innovations  Search this
Patents  Search this
Medical instruments and apparatus  Search this
Genre/Form:
Correspondence
Citation:
Del Mar Avionics Holter Monitor Records, dates, Archives Center, National Museum of American History
Identifier:
NMAH.AC.1249
See more items in:
Del Mar Avionics Holter Monitor Records
Archival Repository:
Archives Center, National Museum of American History
GUID:
https://n2t.net/ark:/65665/ep817067f09-60ab-459a-919f-0ef2a3d6da5b
EDAN-URL:
ead_collection:sova-nmah-ac-1249
Online Media:

Synopsis of Air Force radio communication equipment.

Collection Creator:
United States. Army. Ordnance Department. Ordnance Research and Development Translation Center  Search this
Container:
Roll 36, Item FE 792
Type:
Archival materials
Microform
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 Documents (World War II): Fort Eustis Library (FE) Microfilm, Acc. NASM.XXXX.0468, National Air and Space Museum, Smithsonian Institution.
See more items in:
Captured German Documents (World War II): Fort Eustis Library (FE) Microfilm
Captured German Documents (World War II): Fort Eustis Library (FE) Microfilm / Series 2: Microfilm Rolls / Roll 36
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg2910a8fae-8e43-49fe-ad27-5bfdb2579d6c
EDAN-URL:
ead_component:sova-nasm-xxxx-0468-ref1283

Climate Change Committees /Speeches [including a few by RIde]

Collection Creator:
Ride, Sally, 1951-2012  Search this
Container:
Box 39, Folder 1
Type:
Archival materials
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:
Sally K. Ride Papers, Acc. 2014-0025, National Air and Space Museum, Smithsonian Institution.
See more items in:
Sally K. Ride Papers
Sally K. Ride Papers / Series 6: Space and Stem Education Advocacy / 6.2: STEM Advocacy, Committees and Conferences
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg221a16779-7e1e-43b3-b04b-8a520862f5f2
EDAN-URL:
ead_component:sova-nasm-2014-0025-ref536
1 Page(s) matching your search term, top most relevant are shown: View entire project in transcription center
  • View Climate Change Committees /Speeches [including a few by RIde] digital asset number 1

Newspaper and Journal Articles: General

Collection Creator:
Junkin, Hattie Meyers, 1896-1985  Search this
Container:
Box 5, Folder 5
Type:
Archival materials
Text
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.
See more items in:
Hattie Meyers Junkin Papers
Hattie Meyers Junkin Papers / Series 3: General materials of Hattie Meyers Junkin
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg2f9c2563e-5c4a-47d6-abbb-276111be86a4
EDAN-URL:
ead_component:sova-nasm-xxxx-0171-ref141
1 Page(s) matching your search term, top most relevant are shown: View entire project in transcription center
  • View Newspaper and Journal Articles: General digital asset number 1

Revista Aérea Collection

Creator:
Revista Aérea Latinoamericana  Search this
Extent:
61.8 Cubic feet
158 Boxes
Type:
Collection descriptions
Archival materials
Date:
1937-2003
Summary:
The subject reference files of Revista Aérea Latinoamericana regarding aviation in Latin America during 1937-2003.
Scope and Content Note:
This collection consists of reference files from the Spanish-language monthly periodical Revista Aérea Latinoamericana. This collection is a virtual time-capsule of the evolution of aviation in Latin America over the 66-year period of publication, 1937-2003. The files include information on hardware and aircraft systems, as well as documentation on aeronautical educational enterprises in Latin America, aero clubs, sport aviation, military and naval aviation, indigenous manufacturing enterprises, and air transport. The material in the collection includes black-and-white and color photographs; color slides; domestic and foreign aerospace trade literature; speeches and lectures; news releases; and drawings.
Arrangement:
The collection is organized by subject and designated in parallel to the NASM Archives' Technical Reference Files as follows:

Series A: -- Aircraft (Boxes 1-86; aircraft / lighter-than-air; each section by manufacturer and model)

Series B: -- Propulsion (Boxes 87-101; engines / other propulsion equipment, each section by manufacturer and model)

Series C: -- Biography (Boxes 102-111; by name, last name first)

Series D: -- Organizations (Box 112; by name)

Series E: -- Corporations (Boxes 113-133; by name)

Series F1: -- Airlines (Boxes 134-135; by name)

Series F4: -- Airports (Boxes 136; by name)

Series G: -- Electronics and Communications (Boxes 137-143; navigation equipment / radar systems / communications equipment; each section by manufacturer and model)

Series H: -- Education (Boxes 144-145; by name)

Series J1: -- Events (Box 146; airshows and exhibits; by name)

Series J2: -- Events (Box 146; flights; by name)

Series K: -- Awards (Box 146; by name)

Series M: -- Equipment (Box 147; by manufacturer and model)

Series O: -- Space History (Box 148-150; spacecraft and systems / UAVs; by manufacturer and model)

Series P: -- General Aviation (Box 151; by country)

Series R: -- Art and Literature (Box 151; by country)

Series S: -- Military (Box 152; by country)

Series S2: -- Armament (Box 153-154; by manufacturer and model)

Series U: -- Museums (Box 155; by country)

Series Y: -- Misccellaneous (Box 155)

Series Y1: -- Miscellaneous National History (Box 155)

Series Y3: -- Miscellaneous Photography (Box 155)
Historical Note:
Revista Aérea Latinoamericana was created in 1937 as a Spanish-language version of the highly regarded US monthly Aero Digest aimed at the Latin American market. This region was seen as a rich potential market for export sales of aircraft, engines, and associated technology, and advertisers came to rely heavily on this publication to help promote their line in this lucrative market. When Aero Digest ceased publication in 1956 Colombian businessman Maximillian Garavito purchased Revista Aérea Latinoamericana and took over as editor and publisher. Upon his death in 1979 Elaine Asch-Root assumed control, dropping "Latinoamericana" from the title and expanding into the Spanish and Portugeuse markets. In 2010 Revista Aérea began publishing a Portugeuse language edition as well as a revamped on-line version. In addition to its original role of communicating the latest in aviation technology to potential buyers, the magazine also highlights aviation-related news and events in Latin America and promotes aviation education and humanitarian aviation operations.
Provenance:
Elaine Asch-Root, gift, 2003, 2003-0028
Restrictions:
No restrictions on access.
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.
Topic:
Aeronautics  Search this
Citation:
Revista Aérea Collection Collection, Acc. 2003-0028, National Air and Space Museum, Smithsonian Institution.
Identifier:
NASM.2003.0028
See more items in:
Revista Aérea Collection
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg274d5585a-ee2c-4fb6-bdc0-c0142b87de91
EDAN-URL:
ead_collection:sova-nasm-2003-0028
Online Media:

Communications Equipment

Collection Creator:
Revista Aérea Latinoamericana  Search this
Type:
Archival materials
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:
Revista Aérea Collection Collection, Acc. 2003-0028, National Air and Space Museum, Smithsonian Institution.
See more items in:
Revista Aérea Collection
Revista Aérea Collection / Series G: Electronics and Communications
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg2b37c8da6-ad9d-48f0-9c41-63ae60452b2d
EDAN-URL:
ead_component:sova-nasm-2003-0028-ref10249

Alenia MAGICS command and control system

Collection Creator:
Revista Aérea Latinoamericana  Search this
Extent:
1 Folder
Container:
Box 143, Folder 1
Type:
Archival materials
Arrangement:
photos
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:
Revista Aérea Collection Collection, Acc. 2003-0028, National Air and Space Museum, Smithsonian Institution.
See more items in:
Revista Aérea Collection
Revista Aérea Collection / Series G: Electronics and Communications / Communications Equipment
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg2de8af849-19d1-46f1-a4b7-11bad6be1dc5
EDAN-URL:
ead_component:sova-nasm-2003-0028-ref11092

CASA FITS tactical system

Collection Creator:
Revista Aérea Latinoamericana  Search this
Extent:
1 Folder
Container:
Box 143, Folder 2
Type:
Archival materials
Arrangement:
photos
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:
Revista Aérea Collection Collection, Acc. 2003-0028, National Air and Space Museum, Smithsonian Institution.
See more items in:
Revista Aérea Collection
Revista Aérea Collection / Series G: Electronics and Communications / Communications Equipment
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg22343b304-55d7-4d34-90f6-73fa6982539d
EDAN-URL:
ead_component:sova-nasm-2003-0028-ref11095

Contraves Model 016/033 universal pedestal system

Collection Creator:
Revista Aérea Latinoamericana  Search this
Extent:
1 Folder
Container:
Box 143, Folder 3
Type:
Archival materials
Arrangement:
documents
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:
Revista Aérea Collection Collection, Acc. 2003-0028, National Air and Space Museum, Smithsonian Institution.
See more items in:
Revista Aérea Collection
Revista Aérea Collection / Series G: Electronics and Communications / Communications Equipment
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg2fe67b825-fde2-40b4-aa61-804abe537563
EDAN-URL:
ead_component:sova-nasm-2003-0028-ref11100

Collins Exec*Sat satellite comunications system

Collection Creator:
Revista Aérea Latinoamericana  Search this
Extent:
1 Folder
Container:
Box 143, Folder 4
Type:
Archival materials
Arrangement:
photos
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:
Revista Aérea Collection Collection, Acc. 2003-0028, National Air and Space Museum, Smithsonian Institution.
See more items in:
Revista Aérea Collection
Revista Aérea Collection / Series G: Electronics and Communications / Communications Equipment
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg296d39b12-1729-48fb-ae6a-895e0ec5a838
EDAN-URL:
ead_component:sova-nasm-2003-0028-ref11103

Cossor CTM 185 modem, Project Raven

Collection Creator:
Revista Aérea Latinoamericana  Search this
Extent:
1 Folder
Container:
Box 143, Folder 5
Type:
Archival materials
Arrangement:
photos
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:
Revista Aérea Collection Collection, Acc. 2003-0028, National Air and Space Museum, Smithsonian Institution.
See more items in:
Revista Aérea Collection
Revista Aérea Collection / Series G: Electronics and Communications / Communications Equipment
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg28dfea327-d2b7-439b-9b27-5682220e3c9b
EDAN-URL:
ead_component:sova-nasm-2003-0028-ref11106

GEC Telephone Cabin System

Collection Creator:
Revista Aérea Latinoamericana  Search this
Extent:
1 Folder
Container:
Box 143, Folder 6
Type:
Archival materials
Arrangement:
photos
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:
Revista Aérea Collection Collection, Acc. 2003-0028, National Air and Space Museum, Smithsonian Institution.
See more items in:
Revista Aérea Collection
Revista Aérea Collection / Series G: Electronics and Communications / Communications Equipment
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg27fe97815-9432-4ee9-8e35-09e6f52767be
EDAN-URL:
ead_component:sova-nasm-2003-0028-ref11110

GEC-Marconi TIALD targeting pod

Collection Creator:
Revista Aérea Latinoamericana  Search this
Extent:
2 Folders
Container:
Box 143, Folder 7-8
Type:
Archival materials
Arrangement:
documents / photos
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:
Revista Aérea Collection Collection, Acc. 2003-0028, National Air and Space Museum, Smithsonian Institution.
See more items in:
Revista Aérea Collection
Revista Aérea Collection / Series G: Electronics and Communications / Communications Equipment
Archival Repository:
National Air and Space Museum Archives
GUID:
https://n2t.net/ark:/65665/pg2c2c23556-68bb-4e49-bfe5-f46f83e5780c
EDAN-URL:
ead_component:sova-nasm-2003-0028-ref11112

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