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Telegraph transmitter Stock Photos and Images
Wireless telegraph transmitter with balloon-mounted aerial Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/wireless-telegraph-transmitter-with-balloon-mounted-aerial-image66068069.htmlRMDRDJDW–Wireless telegraph transmitter with balloon-mounted aerial
Breguet telegraph transmitter of 1845. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-breguet-telegraph-transmitter-of-1845-131278454.htmlRMHHG706–Breguet telegraph transmitter of 1845.
Telegraph transmitter 1914 tauleigne Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-telegraph-transmitter-1914-tauleigne-161312458.htmlRMKACBK6–Telegraph transmitter 1914 tauleigne
GPO telegraph transmitter. Shown at the International Electric Exhibition at the Crystal Palace. 1882. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-gpo-telegraph-transmitter-shown-at-the-international-electric-exhibition-131278143.htmlRMHHG6H3–GPO telegraph transmitter. Shown at the International Electric Exhibition at the Crystal Palace. 1882.
1854 engraving, Magnetic (or, Electric) Telegraph transmitter key. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-1854-engraving-magnetic-or-electric-telegraph-transmitter-key-41805474.htmlRMCC0B8J–1854 engraving, Magnetic (or, Electric) Telegraph transmitter key.
LONFON CENTRAL TELEGRAPH OFFICE at the corner of Newgate Street and St Martin's Le Grand, about 1912. The operator at right is using a Baudot telegraph transmitter. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/lonfon-central-telegraph-office-at-the-corner-of-newgate-street-and-st-martins-le-grand-about-1912-the-operator-at-right-is-using-a-baudot-telegraph-transmitter-image385095794.htmlRM2DAEHH6–LONFON CENTRAL TELEGRAPH OFFICE at the corner of Newgate Street and St Martin's Le Grand, about 1912. The operator at right is using a Baudot telegraph transmitter.
Telegraph transmitter Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-telegraph-transmitter-76007225.htmlRMEBJBYN–Telegraph transmitter
This illustration represents Telegraph Transmitter which consists essentially of a metal layer, vintage line drawing or engraving illustration. Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/this-illustration-represents-telegraph-transmitter-which-consists-essentially-of-a-metal-layer-vintage-line-drawing-or-engraving-illustration-image348650519.htmlRF2B76B87–This illustration represents Telegraph Transmitter which consists essentially of a metal layer, vintage line drawing or engraving illustration.
SAMUEL MORSE (1791-1872) with his telegraph transmitter photographed by Matthew Brady in 1857 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-samuel-morse-1791-1872-with-his-telegraph-transmitter-photographed-135759678.htmlRMHTTARX–SAMUEL MORSE (1791-1872) with his telegraph transmitter photographed by Matthew Brady in 1857
Old schematic illustration of optical telegraph (transmitter). By unidentified author, publ. on Magasin Pittoresque, Paris, 1846 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/old-schematic-illustration-of-optical-telegraph-transmitter-by-unidentified-author-publ-on-magasin-pittoresque-paris-1846-image225547930.htmlRFR2XGK6–Old schematic illustration of optical telegraph (transmitter). By unidentified author, publ. on Magasin Pittoresque, Paris, 1846
Bristol, UK. 04th June, 2015. A telegraph transmitter in the M shed museum warehouse in Bristol. The museum opened its doors to reveal just some of its 1.75million items in storage. Situated by Bristol’s floating harbour the M shed museum was opened in 2011 and holds exhibits that explore life and work in the city. Credit: Jonny White/Alamy Live News Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-bristol-uk-04th-june-2015-a-telegraph-transmitter-in-the-m-shed-museum-83424614.htmlRMERM8XE–Bristol, UK. 04th June, 2015. A telegraph transmitter in the M shed museum warehouse in Bristol. The museum opened its doors to reveal just some of its 1.75million items in storage. Situated by Bristol’s floating harbour the M shed museum was opened in 2011 and holds exhibits that explore life and work in the city. Credit: Jonny White/Alamy Live News
Morse telegraph transmitter with code Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/morse-telegraph-transmitter-with-code-image242429855.htmlRFT2BHN3–Morse telegraph transmitter with code
DE FOREST WIRELESS-TELEGRAPH TRANSMITTER : Showing rotary transformer, oil transformer, condensers, spark gap, and key. from the Article A REVIEW OF WIRELESS-TELEGRAPH ENGINEERING PRACTICE. By A. Frederick Collins. from The Engineering Magazine Devoted to Industrial Progress Volume XXIV October 1902 - March 1903 The Engineering Magazine Co Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/de-forest-wireless-telegraph-transmitter-showing-rotary-transformer-oil-transformer-condensers-spark-gap-and-key-from-the-article-a-review-of-wireless-telegraph-engineering-practice-by-a-frederick-collins-from-the-engineering-magazine-devoted-to-industrial-progress-volume-xxiv-october-1902-march-1903-the-engineering-magazine-co-image677480799.htmlRM3BA5WJR–DE FOREST WIRELESS-TELEGRAPH TRANSMITTER : Showing rotary transformer, oil transformer, condensers, spark gap, and key. from the Article A REVIEW OF WIRELESS-TELEGRAPH ENGINEERING PRACTICE. By A. Frederick Collins. from The Engineering Magazine Devoted to Industrial Progress Volume XXIV October 1902 - March 1903 The Engineering Magazine Co
Vintage technology:Morse telegraph transmitter and Morse code Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/vintage-technologymorse-telegraph-transmitter-and-morse-code-image382416253.htmlRF2D64FR9–Vintage technology:Morse telegraph transmitter and Morse code
An old engraving of Gray’s telegraphic transmitter (top) and receiver (below). It is from a Victorian mechanical engineering book of the 1880s. Elisha Gray (1835 –1901) was an American electrical engineer who co-founded the Western Electric Manufacturing Company. Gray is best known for his development of a telephone prototype in 1876 in Highland Park, Illinois, USA. He also designed this composite tone device. The transmitter shows a single key connected to two electro-magnets. The receiver used a wooden soundbox covered in thin metal to reproduce sounds. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-old-engraving-of-grays-telegraphic-transmitter-top-and-receiver-below-it-is-from-a-victorian-mechanical-engineering-book-of-the-1880s-elisha-gray-1835-1901-was-an-american-electrical-engineer-who-co-founded-the-western-electric-manufacturing-company-gray-is-best-known-for-his-development-of-a-telephone-prototype-in-1876-in-highland-park-illinois-usa-he-also-designed-this-composite-tone-device-the-transmitter-shows-a-single-key-connected-to-two-electro-magnets-the-receiver-used-a-wooden-soundbox-covered-in-thin-metal-to-reproduce-sounds-image396652709.htmlRM2E192G5–An old engraving of Gray’s telegraphic transmitter (top) and receiver (below). It is from a Victorian mechanical engineering book of the 1880s. Elisha Gray (1835 –1901) was an American electrical engineer who co-founded the Western Electric Manufacturing Company. Gray is best known for his development of a telephone prototype in 1876 in Highland Park, Illinois, USA. He also designed this composite tone device. The transmitter shows a single key connected to two electro-magnets. The receiver used a wooden soundbox covered in thin metal to reproduce sounds.
Transmitter of Breguet's dial telegraph. 1874. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-transmitter-of-breguets-dial-telegraph-1874-131278455.htmlRMHHG707–Transmitter of Breguet's dial telegraph. 1874.
An old cigarette card (c. 1929) with a portrait of Guglielmo Giovanni Maria Marconi, 1st Marquis of Marconi FRSA (1874 –1937) and an illustration showing the masts that enabled wireless telegraphy. Marconi was an Italian inventor and electrical engineer, known for his pioneering work on radio transmission and a radio telegraph system. He is credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics for his contribution to wireless telegraphy. Marconi was founder of The Wireless Telegraph & Signal Company in the UK in 1897 (which became the Marconi Company). Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-old-cigarette-card-c-1929-with-a-portrait-of-guglielmo-giovanni-maria-marconi-1st-marquis-of-marconi-frsa-1874-1937-and-an-illustration-showing-the-masts-that-enabled-wireless-telegraphy-marconi-was-an-italian-inventor-and-electrical-engineer-known-for-his-pioneering-work-on-radio-transmission-and-a-radio-telegraph-system-he-is-credited-as-the-inventor-of-radio-and-he-shared-the-1909-nobel-prize-in-physics-for-his-contribution-to-wireless-telegraphy-marconi-was-founder-of-the-wireless-telegraph-signal-company-in-the-uk-in-1897-which-became-the-marconi-company-image366811943.htmlRM2C8NMAF–An old cigarette card (c. 1929) with a portrait of Guglielmo Giovanni Maria Marconi, 1st Marquis of Marconi FRSA (1874 –1937) and an illustration showing the masts that enabled wireless telegraphy. Marconi was an Italian inventor and electrical engineer, known for his pioneering work on radio transmission and a radio telegraph system. He is credited as the inventor of radio, and he shared the 1909 Nobel Prize in Physics for his contribution to wireless telegraphy. Marconi was founder of The Wireless Telegraph & Signal Company in the UK in 1897 (which became the Marconi Company).
Thomas Edison, seated at desk, demonstrating an old telegraph transmitter in his West Orange, New Jersey, laboratory, 1930. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-thomas-edison-seated-at-desk-demonstrating-an-old-telegraph-transmitter-50025359.htmlRMCWARRY–Thomas Edison, seated at desk, demonstrating an old telegraph transmitter in his West Orange, New Jersey, laboratory, 1930.
Breguet Dial Telegraph Transmitter, c. 1870. Private Collection. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/breguet-dial-telegraph-transmitter-c-1870-private-collection-image535129260.htmlRM2P2H6R8–Breguet Dial Telegraph Transmitter, c. 1870. Private Collection.
Vintage 19th century drawing of a Wheatstone Morse code/telegraph transmitter Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-vintage-19th-century-drawing-of-a-wheatstone-morse-codetelegraph-transmitter-78841493.htmlRFEG7F3H–Vintage 19th century drawing of a Wheatstone Morse code/telegraph transmitter
EB1911 Telegraph Marconi transmitter and receiver Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-eb1911-telegraph-marconi-transmitter-and-receiver-162265508.htmlRMKBYR8M–EB1911 Telegraph Marconi transmitter and receiver
Breguet Dial Telegraph Transmitter. Museum: PRIVATE COLLECTION. Author: ANONYMOUS. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/breguet-dial-telegraph-transmitter-museum-private-collection-author-anonymous-image515378789.htmlRM2MXDEW9–Breguet Dial Telegraph Transmitter. Museum: PRIVATE COLLECTION. Author: ANONYMOUS.
Hicks telegraph repeater patent model. Telegraph repeaters amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/hicks-telegraph-repeater-patent-model-telegraph-repeaters-amplified-electrical-signals-in-a-telegraph-line-telegraph-messages-traveled-as-a-series-of-electrical-pulses-through-a-wire-from-a-transmitter-to-a-receiver-short-pulses-made-a-dot-slightly-longer-pulses-a-dash-image353453752.htmlRM2BF15T8–Hicks telegraph repeater patent model. Telegraph repeaters amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash.
(250826) -- BEIJING, Aug. 26, 2025 (Xinhua) -- A visitor explore the models of a small telegraph transmitter and a hand-cranked motor used by Xinhua News Agency during its years in the revolutionary base of Yan'an, a city in northwest China's Shaanxi Province, at an art exhibition highlighting the Chinese People's War of Resistance Against Japanese Aggression in Beijing, capital of China, Aug. 26, 2025. China's national news agency, Xinhua, on Tuesday opened an art exhibition highlighting the Chinese People's War of Resistance Against Japanese Aggression. The exhibition, opened at the Nation Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/250826-beijing-aug-26-2025-xinhua-a-visitor-explore-the-models-of-a-small-telegraph-transmitter-and-a-hand-cranked-motor-used-by-xinhua-news-agency-during-its-years-in-the-revolutionary-base-of-yanan-a-city-in-northwest-chinas-shaanxi-province-at-an-art-exhibition-highlighting-the-chinese-peoples-war-of-resistance-against-japanese-aggression-in-beijing-capital-of-china-aug-26-2025-chinas-national-news-agency-xinhua-on-tuesday-opened-an-art-exhibition-highlighting-the-chinese-peoples-war-of-resistance-against-japanese-aggression-the-exhibition-opened-at-the-nation-image698342742.htmlRM3CG4786–(250826) -- BEIJING, Aug. 26, 2025 (Xinhua) -- A visitor explore the models of a small telegraph transmitter and a hand-cranked motor used by Xinhua News Agency during its years in the revolutionary base of Yan'an, a city in northwest China's Shaanxi Province, at an art exhibition highlighting the Chinese People's War of Resistance Against Japanese Aggression in Beijing, capital of China, Aug. 26, 2025. China's national news agency, Xinhua, on Tuesday opened an art exhibition highlighting the Chinese People's War of Resistance Against Japanese Aggression. The exhibition, opened at the Nation
Clark telegraph repeater patent model. Telegraph repeaters amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash. NMAH2002-27288 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/clark-telegraph-repeater-patent-model-telegraph-repeaters-amplified-electrical-signals-in-a-telegraph-line-telegraph-messages-traveled-as-a-series-of-electrical-pulses-through-a-wire-from-a-transmitter-to-a-receiver-short-pulses-made-a-dot-slightly-longer-pulses-a-dash-nmah2002-27288-image352208844.htmlRM2BD0DY8–Clark telegraph repeater patent model. Telegraph repeaters amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash. NMAH2002-27288
Telegraph transmitter Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/telegraph-transmitter-image65194984.htmlRMDP1TT8–Telegraph transmitter
This illustration represents Wireless Telegraph Transmitter in which transmitting messages between distance points without the use of wires, vintage l Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/this-illustration-represents-wireless-telegraph-transmitter-in-which-transmitting-messages-between-distance-points-without-the-use-of-wires-vintage-l-image348630063.htmlRF2B75D5K–This illustration represents Wireless Telegraph Transmitter in which transmitting messages between distance points without the use of wires, vintage l
996 Marconi capacity area transmitter 1896 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/996-marconi-capacity-area-transmitter-1896-image213750324.htmlRMPBN4M4–996 Marconi capacity area transmitter 1896
The transmitter of the telegraph. Showing three different images of telegraph in it, vintage line drawing or engraving Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-transmitter-of-the-telegraph-showing-three-different-images-of-telegraph-in-it-vintage-line-drawing-or-engraving-image348657940.htmlRF2B76MN8–The transmitter of the telegraph. Showing three different images of telegraph in it, vintage line drawing or engraving
Telegraph office worker forwarding a message in Morse Code, 19th century. From L'Univers Illustre, published Paris, 1859 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/telegraph-office-worker-forwarding-a-message-in-morse-code-19th-century-from-lunivers-illustre-published-paris-1859-image472427480.htmlRM2JCGX20–Telegraph office worker forwarding a message in Morse Code, 19th century. From L'Univers Illustre, published Paris, 1859
Morse's first telegraph apparatus. Woodcut Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/morses-first-telegraph-apparatus-woodcut-image185838409.htmlRMMP9JP1–Morse's first telegraph apparatus. Woodcut
Thomas Edison, seated at desk, demonstrating an old telegraph transmitter in his West Orange, New Jersey, laboratory, 1930. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-thomas-edison-seated-at-desk-demonstrating-an-old-telegraph-transmitter-32386784.htmlRMBTK9JT–Thomas Edison, seated at desk, demonstrating an old telegraph transmitter in his West Orange, New Jersey, laboratory, 1930.
WHEATSTONE MAGNETO ALPHABETICAL TELEGRAPH.Communicator;Receiver;Transmitter 1880 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/wheatstone-magneto-alphabetical-telegraphcommunicatorreceivertransmitter-1880-image183122563.htmlRFMHWXKF–WHEATSTONE MAGNETO ALPHABETICAL TELEGRAPH.Communicator;Receiver;Transmitter 1880
The Marconi standard broadcasting transmitter as supplied to British Broadcasting stations and to many of the foreign and colonial broadcasting stations . Marconi 's Wireless Telegraph Co Ltd . 1 January 1925 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-marconi-standard-broadcasting-transmitter-as-supplied-to-british-broadcasting-stations-and-to-many-of-the-foreign-and-colonial-broadcasting-stations-marconi-s-wireless-telegraph-co-ltd-1-january-1925-image359822007.htmlRM2BWB8HY–The Marconi standard broadcasting transmitter as supplied to British Broadcasting stations and to many of the foreign and colonial broadcasting stations . Marconi 's Wireless Telegraph Co Ltd . 1 January 1925
Transmitter of early model of Breguet dial telegraph. 1874. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-transmitter-of-early-model-of-breguet-dial-telegraph-1874-131278450.htmlRMHHG702–Transmitter of early model of Breguet dial telegraph. 1874.
Diagrams of Morse telegraph apparatus key and register. Hand-colored woodcut Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/diagrams-of-morse-telegraph-apparatus-key-and-register-hand-colored-image3756070.htmlRMA69M27–Diagrams of Morse telegraph apparatus key and register. Hand-colored woodcut
An old engraving of a printing telegraph stand designed by George L Anders. It is from a mechanical engineering book of the 1880s. The stand has a keyboard and visible dial or typewheel. The typewheel at the sending end was synchronised to a similar wheel at the receiving end. When the character key was pressed at the home station, it actuated the typewheel at the distant station just as the same character moved into the printing position – an example of a synchronous data transmission system. When transmitting power was provided to the electric magneto by the foot treadle. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-old-engraving-of-a-printing-telegraph-stand-designed-by-george-l-anders-it-is-from-a-mechanical-engineering-book-of-the-1880s-the-stand-has-a-keyboard-and-visible-dial-or-typewheel-the-typewheel-at-the-sending-end-was-synchronised-to-a-similar-wheel-at-the-receiving-end-when-the-character-key-was-pressed-at-the-home-station-it-actuated-the-typewheel-at-the-distant-station-just-as-the-same-character-moved-into-the-printing-position-an-example-of-a-synchronous-data-transmission-system-when-transmitting-power-was-provided-to-the-electric-magneto-by-the-foot-treadle-image398057842.htmlRM2E3H2RE–An old engraving of a printing telegraph stand designed by George L Anders. It is from a mechanical engineering book of the 1880s. The stand has a keyboard and visible dial or typewheel. The typewheel at the sending end was synchronised to a similar wheel at the receiving end. When the character key was pressed at the home station, it actuated the typewheel at the distant station just as the same character moved into the printing position – an example of a synchronous data transmission system. When transmitting power was provided to the electric magneto by the foot treadle.
WilliamsFarmer duplex telegraph patent model. Telegraph relays amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash. NMAH2002-11475 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/williamsfarmer-duplex-telegraph-patent-model-telegraph-relays-amplified-electrical-signals-in-a-telegraph-line-telegraph-messages-traveled-as-a-series-of-electrical-pulses-through-a-wire-from-a-transmitter-to-a-receiver-short-pulses-made-a-dot-slightly-longer-pulses-a-dash-nmah2002-11475-image352208861.htmlRM2BD0DYW–WilliamsFarmer duplex telegraph patent model. Telegraph relays amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash. NMAH2002-11475
An old engraving of Gustave Froment’s alphabetical telegraph dials of 1850. It is from a book of the 1890s on discoveries and inventions during the 1800s. Paul Gustave Alexandre Froment (1815–1865) was a highly-skilled manufacturer of precision engineered apparatus. His Alphabetic Telegraph improved on Wheatstone's galvanic dial instrument. The instrument (on the left) is the sending device where an operator turns the clockwork hand to the desired letter, and subsequent words, to send – this is transmitted by battery power to the electro-magnetic receiver (right). Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-old-engraving-of-gustave-froments-alphabetical-telegraph-dials-of-1850-it-is-from-a-book-of-the-1890s-on-discoveries-and-inventions-during-the-1800s-paul-gustave-alexandre-froment-18151865-was-a-highly-skilled-manufacturer-of-precision-engineered-apparatus-his-alphabetic-telegraph-improved-on-wheatstones-galvanic-dial-instrument-the-instrument-on-the-left-is-the-sending-device-where-an-operator-turns-the-clockwork-hand-to-the-desired-letter-and-subsequent-words-to-send-this-is-transmitted-by-battery-power-to-the-electro-magnetic-receiver-right-image454552069.htmlRM2HBEHPD–An old engraving of Gustave Froment’s alphabetical telegraph dials of 1850. It is from a book of the 1890s on discoveries and inventions during the 1800s. Paul Gustave Alexandre Froment (1815–1865) was a highly-skilled manufacturer of precision engineered apparatus. His Alphabetic Telegraph improved on Wheatstone's galvanic dial instrument. The instrument (on the left) is the sending device where an operator turns the clockwork hand to the desired letter, and subsequent words, to send – this is transmitted by battery power to the electro-magnetic receiver (right).
EB1911 Telegraph Wheatstone Automatic Transmitter Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-eb1911-telegraph-wheatstone-automatic-transmitter-162264998.htmlRMKBYPJE–EB1911 Telegraph Wheatstone Automatic Transmitter
An old engraving of a Victorian ‘alarm’ dial-telegraph station. It is from a mechanical engineering book of the 1880s. This electro-magnetic device is powered by the foot treadle. This machine would be connected to similar machines within a building or compound. With the dial’s needle in the vertical position it is receive mode. Any incoming message received shows on the upper, viewing dial. This could indicate messages such as ‘fire’, ‘thieves’, ‘door not locked’ or similar. The main dial can be turned to various set positions to transmit similar signals. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-old-engraving-of-a-victorian-alarm-dial-telegraph-station-it-is-from-a-mechanical-engineering-book-of-the-1880s-this-electro-magnetic-device-is-powered-by-the-foot-treadle-this-machine-would-be-connected-to-similar-machines-within-a-building-or-compound-with-the-dials-needle-in-the-vertical-position-it-is-receive-mode-any-incoming-message-received-shows-on-the-upper-viewing-dial-this-could-indicate-messages-such-as-fire-thieves-door-not-locked-or-similar-the-main-dial-can-be-turned-to-various-set-positions-to-transmit-similar-signals-image396978445.htmlRM2E1RX1H–An old engraving of a Victorian ‘alarm’ dial-telegraph station. It is from a mechanical engineering book of the 1880s. This electro-magnetic device is powered by the foot treadle. This machine would be connected to similar machines within a building or compound. With the dial’s needle in the vertical position it is receive mode. Any incoming message received shows on the upper, viewing dial. This could indicate messages such as ‘fire’, ‘thieves’, ‘door not locked’ or similar. The main dial can be turned to various set positions to transmit similar signals.
The speed telegraph transmitter on old cruiser Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-the-speed-telegraph-transmitter-on-old-cruiser-90848017.htmlRFF7PDG1–The speed telegraph transmitter on old cruiser
An old engraving of a military heliograph from the 1800s. It is from Victorian book of the 1890s on sports, games and pastimes. A heliograph is a solar telegraph system that signals by flashes of sunlight (generally using Morse code) reflected by a mirror. The flashes are produced by momentarily pivoting the mirror, or by interrupting the beam with a shutter. Here the light from the sun is concentrated via two mirrors (right). The light is aimed through the crosshairs (centre) on though the final shutter screen (left) to be transmitted to a distant recipient. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-old-engraving-of-a-military-heliograph-from-the-1800s-it-is-from-victorian-book-of-the-1890s-on-sports-games-and-pastimes-a-heliograph-is-a-solar-telegraph-system-that-signals-by-flashes-of-sunlight-generally-using-morse-code-reflected-by-a-mirror-the-flashes-are-produced-by-momentarily-pivoting-the-mirror-or-by-interrupting-the-beam-with-a-shutter-here-the-light-from-the-sun-is-concentrated-via-two-mirrors-right-the-light-is-aimed-through-the-crosshairs-centre-on-though-the-final-shutter-screen-left-to-be-transmitted-to-a-distant-recipient-image596747292.htmlRM2WJT578–An old engraving of a military heliograph from the 1800s. It is from Victorian book of the 1890s on sports, games and pastimes. A heliograph is a solar telegraph system that signals by flashes of sunlight (generally using Morse code) reflected by a mirror. The flashes are produced by momentarily pivoting the mirror, or by interrupting the beam with a shutter. Here the light from the sun is concentrated via two mirrors (right). The light is aimed through the crosshairs (centre) on though the final shutter screen (left) to be transmitted to a distant recipient.
Georges-Louis Le Sage or George Lesage (1724-1803) Swiss Physicist Inventing First Electric Telegraph, Geneva, Switzerland, 1774. Vintage Illustration or Engraving Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-georges-louis-le-sage-or-george-lesage-1724-1803-swiss-physicist-inventing-41585962.htmlRMCBJB8X–Georges-Louis Le Sage or George Lesage (1724-1803) Swiss Physicist Inventing First Electric Telegraph, Geneva, Switzerland, 1774. Vintage Illustration or Engraving
Telegraph transmitter with a gun Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-telegraph-transmitter-with-a-gun-76007227.htmlRMEBJBYR–Telegraph transmitter with a gun
An old engraving of Gray’s ‘electro-harmonic telegraph’ of 1874. It is from a Victorian book of the 1880s. Elisha Gray (1835 –1901) was an American electrical engineer who co-founded the Western Electric Manufacturing Co. Gray is best known for his telephone prototype in 1876. His harmonic telegraph consisted of multi-tone transmitters, each tone with a telegraph key, transmitting musical tones. Oscillations were created by electromagnets and via a telegraph wire to a receiver (bott right) which reproduced the sound via a hollow metal cylinder on top of two magnets. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-old-engraving-of-grays-electro-harmonic-telegraph-of-1874-it-is-from-a-victorian-book-of-the-1880s-elisha-gray-1835-1901-was-an-american-electrical-engineer-who-co-founded-the-western-electric-manufacturing-co-gray-is-best-known-for-his-telephone-prototype-in-1876-his-harmonic-telegraph-consisted-of-multi-tone-transmitters-each-tone-with-a-telegraph-key-transmitting-musical-tones-oscillations-were-created-by-electromagnets-and-via-a-telegraph-wire-to-a-receiver-bott-right-which-reproduced-the-sound-via-a-hollow-metal-cylinder-on-top-of-two-magnets-image396652700.htmlRM2E192FT–An old engraving of Gray’s ‘electro-harmonic telegraph’ of 1874. It is from a Victorian book of the 1880s. Elisha Gray (1835 –1901) was an American electrical engineer who co-founded the Western Electric Manufacturing Co. Gray is best known for his telephone prototype in 1876. His harmonic telegraph consisted of multi-tone transmitters, each tone with a telegraph key, transmitting musical tones. Oscillations were created by electromagnets and via a telegraph wire to a receiver (bott right) which reproduced the sound via a hollow metal cylinder on top of two magnets.
Telegraph transmitter-1914-tauleigne Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/telegraph-transmitter-1914-tauleigne-image477840240.htmlRM2JNBE2T–Telegraph transmitter-1914-tauleigne
Telegraph transmitter, prototype by Samuel F. Morse, ca 1837. EM*181250.02. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/telegraph-transmitter-prototype-by-samuel-f-morse-ca-1837-em18125002-image566766259.htmlRM2RX2C43–Telegraph transmitter, prototype by Samuel F. Morse, ca 1837. EM*181250.02.
Vintage technology: double needle telegraph by Wheatstone and Cooke from 1830, the first telegraph system put in commercial service, with no need to learn a code and without investing in staff training Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/vintage-technology-double-needle-telegraph-by-wheatstone-and-cooke-from-1830-the-first-telegraph-system-put-in-commercial-service-with-no-need-to-learn-a-code-and-without-investing-in-staff-training-image382416071.htmlRF2D64FGR–Vintage technology: double needle telegraph by Wheatstone and Cooke from 1830, the first telegraph system put in commercial service, with no need to learn a code and without investing in staff training
Tuned Transmitter, by Guglielmo Marconi, 1897. Marconi began experimenting with wireless telegraphy in the early 1890s. In 1895 he succeeded in transmitting over a distance of 1 1/4 miles. His first transmitter consisted of an induction coil connected bet Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-tuned-transmitter-by-guglielmo-marconi-1897-marconi-began-experimenting-104018134.htmlRMG16C5A–Tuned Transmitter, by Guglielmo Marconi, 1897. Marconi began experimenting with wireless telegraphy in the early 1890s. In 1895 he succeeded in transmitting over a distance of 1 1/4 miles. His first transmitter consisted of an induction coil connected bet
Old arc transmitter Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-old-arc-transmitter-53067592.htmlRFD29C74–Old arc transmitter
MORSE'S TRANSMITTER Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-morses-transmitter-105352365.htmlRMG3B60D–MORSE'S TRANSMITTER
A signal receiver mast at the Porthcurno Telegraph museum, Cornwall, uk Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/a-signal-receiver-mast-at-the-porthcurno-telegraph-museum-cornwall-image67117669.htmlRMDW5D7H–A signal receiver mast at the Porthcurno Telegraph museum, Cornwall, uk
An engraving depicting the transmitter of an early model of a Breguet dial telegraph. Dated 19th century Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-engraving-depicting-the-transmitter-of-an-early-model-of-a-breguet-dial-telegraph-dated-19th-century-image235028865.htmlRMRJADM1–An engraving depicting the transmitter of an early model of a Breguet dial telegraph. Dated 19th century
Post and Telegraph Office, Reykjavik, Iceland - note the superb roof-mounted box aerial Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/post-and-telegraph-office-reykjavik-iceland-note-the-superb-roof-mounted-box-aerial-image560772694.htmlRM2RG9B86–Post and Telegraph Office, Reykjavik, Iceland - note the superb roof-mounted box aerial
Radio-relay communication isolated object transmitter and receiver vector electric device technological station supply or equipment antenna telephone telegraph and television signals transmission. Radio-relay communication isolated object signal transmitter and receiver Stock Vectorhttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/radio-relay-communication-isolated-object-transmitter-and-receiver-vector-electric-device-technological-station-supply-or-equipment-antenna-telephone-telegraph-and-television-signals-transmission-radio-relay-communication-isolated-object-signal-transmitter-and-receiver-image640699262.htmlRF2S6AACE–Radio-relay communication isolated object transmitter and receiver vector electric device technological station supply or equipment antenna telephone telegraph and television signals transmission. Radio-relay communication isolated object signal transmitter and receiver
Lindsey telegraph repeater patent model. Telegraph repeaters amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash. NMAH2002-11467 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/lindsey-telegraph-repeater-patent-model-telegraph-repeaters-amplified-electrical-signals-in-a-telegraph-line-telegraph-messages-traveled-as-a-series-of-electrical-pulses-through-a-wire-from-a-transmitter-to-a-receiver-short-pulses-made-a-dot-slightly-longer-pulses-a-dash-nmah2002-11467-image352208815.htmlRM2BD0DX7–Lindsey telegraph repeater patent model. Telegraph repeaters amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash. NMAH2002-11467
Chn. 1st Sep, 2013. CHINA - September 1 2013: (EDITORIAL USE ONLY. CHINA OUT)(MINIMUM PRICE: 100 USD) Deng Shijin: Male, born in 1927 and lived in Shantou Guangdong, died in 2014. He passed the exam to Central Antiaircraft School of Central Military Commission in Meizhou in 1943, and studied in radio deparment of 19th term Huangpu, they used Siemens telegraph transmitter, and located in Guiyang. In December 1944 Qiannan Incident happened, Japanese attacked Du Moutain from Guangxi, students and officers fought in Mawei Town, and hundreds died or injured. They were buried in Huaxi District, ti Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-chn-1st-sep-2013-china-september-1-2013-editorial-use-only-china-outminimum-86122478.htmlRMF0362P–Chn. 1st Sep, 2013. CHINA - September 1 2013: (EDITORIAL USE ONLY. CHINA OUT)(MINIMUM PRICE: 100 USD) Deng Shijin: Male, born in 1927 and lived in Shantou Guangdong, died in 2014. He passed the exam to Central Antiaircraft School of Central Military Commission in Meizhou in 1943, and studied in radio deparment of 19th term Huangpu, they used Siemens telegraph transmitter, and located in Guiyang. In December 1944 Qiannan Incident happened, Japanese attacked Du Moutain from Guangxi, students and officers fought in Mawei Town, and hundreds died or injured. They were buried in Huaxi District, ti
EB1911 Telegraph Marconi transmitter and receiver (2) Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-eb1911-telegraph-marconi-transmitter-and-receiver-2-162265772.htmlRMKBYRJ4–EB1911 Telegraph Marconi transmitter and receiver (2)
Smith telegraph repeater patent model. Telegraph repeaters amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/smith-telegraph-repeater-patent-model-telegraph-repeaters-amplified-electrical-signals-in-a-telegraph-line-telegraph-messages-traveled-as-a-series-of-electrical-pulses-through-a-wire-from-a-transmitter-to-a-receiver-short-pulses-made-a-dot-slightly-longer-pulses-a-dash-image353451612.htmlRM2BF133T–Smith telegraph repeater patent model. Telegraph repeaters amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash.
Chappe's telegraph system. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-chappes-telegraph-system-82937452.htmlRMEPX3FT–Chappe's telegraph system.
Gray telegraph relay patent model. Telegraph relays amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash. NMAH2000-07329 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/gray-telegraph-relay-patent-model-telegraph-relays-amplified-electrical-signals-in-a-telegraph-line-telegraph-messages-traveled-as-a-series-of-electrical-pulses-through-a-wire-from-a-transmitter-to-a-receiver-short-pulses-made-a-dot-slightly-longer-pulses-a-dash-nmah2000-07329-image352168584.htmlRM2BCXJHC–Gray telegraph relay patent model. Telegraph relays amplified electrical signals in a telegraph line. Telegraph messages traveled as a series of electrical pulses through a wire from a transmitter to a receiver. Short pulses made a dot, slightly longer pulses a dash. NMAH2000-07329
Old arc transmitter Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-old-arc-transmitter-22816335.htmlRFB93AD3–Old arc transmitter
Telegraph transmitter with a gun Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/telegraph-transmitter-with-a-gun-image65194980.htmlRMDP1TT4–Telegraph transmitter with a gun
Transmitter and receiver of the Rapid Telegraph. Illustration from a 1881 magazine. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-transmitter-and-receiver-of-the-rapid-telegraph-illustration-from-39084434.htmlRMC7GCGJ–Transmitter and receiver of the Rapid Telegraph. Illustration from a 1881 magazine.
Goldenrod Solidago L., grows in the grassland surrounding a large transmitter pylon, Telegraph, St Mary's, Isles of Scilly, August Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-goldenrod-solidago-l-grows-in-the-grassland-surrounding-a-large-transmitter-128161273.htmlRMHCE709–Goldenrod Solidago L., grows in the grassland surrounding a large transmitter pylon, Telegraph, St Mary's, Isles of Scilly, August
GUARINI AUTOMATIC REPEATER. from the Article A REVIEW OF WIRELESS-TELEGRAPH ENGINEERING PRACTICE. By A. Frederick Collins. from The Engineering Magazine Devoted to Industrial Progress Volume XXIV October 1902 - March 1903 The Engineering Magazine Co Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/guarini-automatic-repeater-from-the-article-a-review-of-wireless-telegraph-engineering-practice-by-a-frederick-collins-from-the-engineering-magazine-devoted-to-industrial-progress-volume-xxiv-october-1902-march-1903-the-engineering-magazine-co-image677480792.htmlRM3BA5WJG–GUARINI AUTOMATIC REPEATER. from the Article A REVIEW OF WIRELESS-TELEGRAPH ENGINEERING PRACTICE. By A. Frederick Collins. from The Engineering Magazine Devoted to Industrial Progress Volume XXIV October 1902 - March 1903 The Engineering Magazine Co
Vintage technology: Morse telegraph office station, employee working with the code Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/vintage-technology-morse-telegraph-office-station-employee-working-with-the-code-image382416226.htmlRF2D64FPA–Vintage technology: Morse telegraph office station, employee working with the code
mail, telegraphy, wireless telegraph of Thomas Alva Edison, schematic representation, wood engraving, 1892, Artist's Copyright has not to be cleared Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/mail-telegraphy-wireless-telegraph-of-thomas-alva-edison-schematic-representation-wood-engraving-1892-artists-copyright-has-not-to-be-cleared-image241573584.htmlRMT10HG0–mail, telegraphy, wireless telegraph of Thomas Alva Edison, schematic representation, wood engraving, 1892, Artist's Copyright has not to be cleared
Hilltop communication mast TV UHF transmitter and telegraph pole, Dalmally, Scotland Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/hilltop-communication-mast-tv-uhf-transmitter-and-telegraph-pole-dalmally-scotland-image334861840.htmlRM2ACP7KC–Hilltop communication mast TV UHF transmitter and telegraph pole, Dalmally, Scotland
mail, telegraphy, telegraph of Emile Baudot, 1874, wood engraving, late 19th century, ARTIST'S COPYRIGHT HAS NOT TO BE CLEARED Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/mail-telegraphy-telegraph-of-emile-baudot-1874-wood-engraving-late-19th-century-artists-copyright-has-not-to-be-cleared-image558183555.htmlRM2RC3CPY–mail, telegraphy, telegraph of Emile Baudot, 1874, wood engraving, late 19th century, ARTIST'S COPYRIGHT HAS NOT TO BE CLEARED
1940s - A British Post Office employee preparing to send a photograph by telegraph (wire picture or wirephoto ) Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/1940s-a-british-post-office-employee-preparing-to-send-a-photograph-by-telegraph-wire-picture-or-wirephoto-image328744269.htmlRM2A2RGJN–1940s - A British Post Office employee preparing to send a photograph by telegraph (wire picture or wirephoto )
An engraving depicting the transmitter of an early model of a Breguet dial telegraph. Dated 19th century Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-engraving-depicting-the-transmitter-of-an-early-model-of-a-breguet-dial-telegraph-dated-19th-century-image235028864.htmlRMRJADM0–An engraving depicting the transmitter of an early model of a Breguet dial telegraph. Dated 19th century
. 438 NSRW Telegraphy, Wireless - transmitter Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/438-nsrw-telegraphy-wireless-transmitter-image212108324.htmlRMP92A98–. 438 NSRW Telegraphy, Wireless - transmitter
Telegraph receiver. The telegraph consists of two distinct portions - the transmitter, or communicator, for sending; and the receiver, or dial, whereon the message is read. 1837 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-telegraph-receiver-the-telegraph-consists-of-two-distinct-portions-90826013.htmlRMF7NDE5–Telegraph receiver. The telegraph consists of two distinct portions - the transmitter, or communicator, for sending; and the receiver, or dial, whereon the message is read. 1837
Morses Transmitter Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/morses-transmitter-image3177740.htmlRMAYKD0D–Morses Transmitter
Cowper's writing telegraph 1879. 1: complete apparatus. 2: the pen on the transmitter. 3: the pen on the receiver. 4: plan of the receiver. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-cowpers-writing-telegraph-1879-1-complete-apparatus-2-the-pen-on-the-131278275.htmlRMHHG6NR–Cowper's writing telegraph 1879. 1: complete apparatus. 2: the pen on the transmitter. 3: the pen on the receiver. 4: plan of the receiver.
EB1911 Telegraph wireless transmitter antenna designs Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-eb1911-telegraph-wireless-transmitter-antenna-designs-162265540.htmlRMKBYR9T–EB1911 Telegraph wireless transmitter antenna designs
Mud roof of Central Telegraph Office at Street Veer Nariman road, Churchgate, Bombay Mumbai, Maharashtra, India, Asia Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/mud-roof-of-central-telegraph-office-at-street-veer-nariman-road-churchgate-bombay-mumbai-maharashtra-india-asia-image654142854.htmlRM3A06NTP–Mud roof of Central Telegraph Office at Street Veer Nariman road, Churchgate, Bombay Mumbai, Maharashtra, India, Asia
An aerial telegraph system used in England in the 18th century. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-an-aerial-telegraph-system-used-in-england-in-the-18th-century-82937476.htmlRMEPX3GM–An aerial telegraph system used in England in the 18th century.
1950s, picture shows a marconi air-to-ground wireless radio transmitter, Jan Smuts airport, Johannesburg, South Africa. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/1950s-picture-shows-a-marconi-air-to-ground-wireless-radio-transmitter-jan-smuts-airport-johannesburg-south-africa-image214634967.htmlRMPD5D2F–1950s, picture shows a marconi air-to-ground wireless radio transmitter, Jan Smuts airport, Johannesburg, South Africa.
PILOT HOUSE - PORT LOOKING TO STARBOARD SHOWING HELM, ENGINE ORDER TELEGRAPH, SPEED INDICATOR, AFT GYRO REPEATER AND FORWARD GYRO REPEATER. - U.S.S. HORNET, Puget Sound Naval Shipyard, Sinclair Inlet, Bremerton, Kitsap County, WA; Newport News Shipbuilding and Drydock; Maul, David, transmitter Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pilot-house-port-looking-to-starboard-showing-helm-engine-order-telegraph-speed-indicator-aft-gyro-repeater-and-forward-gyro-repeater-uss-hornet-puget-sound-naval-shipyard-sinclair-inlet-bremerton-kitsap-county-wa-newport-news-shipbuilding-and-drydock-maul-david-transmitter-image249395598.htmlRMTDMXHJ–PILOT HOUSE - PORT LOOKING TO STARBOARD SHOWING HELM, ENGINE ORDER TELEGRAPH, SPEED INDICATOR, AFT GYRO REPEATER AND FORWARD GYRO REPEATER. - U.S.S. HORNET, Puget Sound Naval Shipyard, Sinclair Inlet, Bremerton, Kitsap County, WA; Newport News Shipbuilding and Drydock; Maul, David, transmitter
Telegraph transmitter with a gun Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/telegraph-transmitter-with-a-gun-image65194977.htmlRMDP1TT1–Telegraph transmitter with a gun
Receiver and Transmitter of the Cassell Autographic Telegraph. Illustration from a 1881 magazine. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-receiver-and-transmitter-of-the-cassell-autographic-telegraph-illustration-39084449.htmlRMC7GCH5–Receiver and Transmitter of the Cassell Autographic Telegraph. Illustration from a 1881 magazine.
Transmitter and receiver of the Rapid Telegraph. Illustration from a 1881 magazine Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/transmitter-and-receiver-of-the-rapid-telegraph-illustration-from-a-1881-magazine-image566419116.htmlRM2RWEHA4–Transmitter and receiver of the Rapid Telegraph. Illustration from a 1881 magazine
BRAUN field receiver from the Article A REVIEW OF WIRELESS-TELEGRAPH ENGINEERING PRACTICE. By A. Frederick Collins. from The Engineering Magazine Devoted to Industrial Progress Volume XXIV October 1902 - March 1903 The Engineering Magazine Co Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/braun-field-receiver-from-the-article-a-review-of-wireless-telegraph-engineering-practice-by-a-frederick-collins-from-the-engineering-magazine-devoted-to-industrial-progress-volume-xxiv-october-1902-march-1903-the-engineering-magazine-co-image677480815.htmlRM3BA5WKB–BRAUN field receiver from the Article A REVIEW OF WIRELESS-TELEGRAPH ENGINEERING PRACTICE. By A. Frederick Collins. from The Engineering Magazine Devoted to Industrial Progress Volume XXIV October 1902 - March 1903 The Engineering Magazine Co
Vintage technology: detail of Wheatstone pointer telegraph from 1839 with a pointer indicating the transmitted letter from a mechanism of electrically driven needles Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/vintage-technology-detail-of-wheatstone-pointer-telegraph-from-1839-with-a-pointer-indicating-the-transmitted-letter-from-a-mechanism-of-electrically-driven-needles-image382416119.htmlRF2D64FJF–Vintage technology: detail of Wheatstone pointer telegraph from 1839 with a pointer indicating the transmitted letter from a mechanism of electrically driven needles
An old engraving of an optical telegraph (semaphore). It is from a Victorian book of the 1880s. It involved a line of stations (towers about 5–20 miles apart), passing visual signals or semaphores (centre pic). Station operators watched their nearest towers through a telescope. When the ‘arms’ spelt out letters/symbols, they would pass these to the next tower. The most used type was by Frenchman Claude Chappe (1792). Long arms with 7 positions, plus a connecting crossbar with 4 different angles (left), created 196 symbols. The Prussian system (right) had 6 wings and was capable of 4096 symbols Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/an-old-engraving-of-an-optical-telegraph-semaphore-it-is-from-a-victorian-book-of-the-1880s-it-involved-a-line-of-stations-towers-about-520-miles-apart-passing-visual-signals-or-semaphores-centre-pic-station-operators-watched-their-nearest-towers-through-a-telescope-when-the-arms-spelt-out-letterssymbols-they-would-pass-these-to-the-next-tower-the-most-used-type-was-by-frenchman-claude-chappe-1792-long-arms-with-7-positions-plus-a-connecting-crossbar-with-4-different-angles-left-created-196-symbols-the-prussian-system-right-had-6-wings-and-was-capable-of-4096-symbols-image388238490.htmlRM2DFHP4A–An old engraving of an optical telegraph (semaphore). It is from a Victorian book of the 1880s. It involved a line of stations (towers about 5–20 miles apart), passing visual signals or semaphores (centre pic). Station operators watched their nearest towers through a telescope. When the ‘arms’ spelt out letters/symbols, they would pass these to the next tower. The most used type was by Frenchman Claude Chappe (1792). Long arms with 7 positions, plus a connecting crossbar with 4 different angles (left), created 196 symbols. The Prussian system (right) had 6 wings and was capable of 4096 symbols
Hilltop communication mast TV UHF transmitter and telegraph pole, Dalmally, Scotland Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/hilltop-communication-mast-tv-uhf-transmitter-and-telegraph-pole-dalmally-scotland-image334861911.htmlRM2ACP7NY–Hilltop communication mast TV UHF transmitter and telegraph pole, Dalmally, Scotland
German wireless telegraph station in Nauen. Nauen power distribution. Original 25 kW spark-gap transmitter built 1906, showing large 400 μF Leyden jar capacitor bank and vertical spark gaps. Old 19th century engraved illustration by Louis Poyet (1846 - 1913) from La Nature 1907 Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/german-wireless-telegraph-station-in-nauen-nauen-power-distribution-original-25-kw-spark-gap-transmitter-built-1906-showing-large-400-f-leyden-jar-capacitor-bank-and-vertical-spark-gaps-old-19th-century-engraved-illustration-by-louis-poyet-1846-1913-from-la-nature-1907-image654829306.htmlRM3A1A1CX–German wireless telegraph station in Nauen. Nauen power distribution. Original 25 kW spark-gap transmitter built 1906, showing large 400 μF Leyden jar capacitor bank and vertical spark gaps. Old 19th century engraved illustration by Louis Poyet (1846 - 1913) from La Nature 1907
Pointer telegraph of Wheatstone, left the transmitter, right the receiver / Zeigertelegraf von Wheatstone, links der Zeichengeber, rechts der Empfangsapparat, Historisch, historical, digital improved reproduction of an original from the 19th century / digitale Reproduktion einer Originalvorlage aus dem 19. Jahrhundert Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/pointer-telegraph-of-wheatstone-left-the-transmitter-right-the-receiver-zeigertelegraf-von-wheatstone-links-der-zeichengeber-rechts-der-empfangsapparat-historisch-historical-digital-improved-reproduction-of-an-original-from-the-19th-century-digitale-reproduktion-einer-originalvorlage-aus-dem-19-jahrhundert-image383525190.htmlRF2D7Y286–Pointer telegraph of Wheatstone, left the transmitter, right the receiver / Zeigertelegraf von Wheatstone, links der Zeichengeber, rechts der Empfangsapparat, Historisch, historical, digital improved reproduction of an original from the 19th century / digitale Reproduktion einer Originalvorlage aus dem 19. Jahrhundert
The hudicle station. 1 kW standard transmitter, steering transmitter, rectifier and 2 transmitter steps. Interior. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-hudicle-station-1-kw-standard-transmitter-steering-transmitter-rectifier-and-2-transmitter-steps-interior-image417500049.htmlRM2F76NG1–The hudicle station. 1 kW standard transmitter, steering transmitter, rectifier and 2 transmitter steps. Interior.
1602 Telegraph Signal Key Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/1602-telegraph-signal-key-image213654550.htmlRMPBGPFJ–1602 Telegraph Signal Key
Breguet's Portable Alphabetical instrument a telegraph consisting of a transmitter and a receiver powered by an electric Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-breguets-portable-alphabetical-instrument-a-telegraph-consisting-of-50051942.htmlRMCWC1NA–Breguet's Portable Alphabetical instrument a telegraph consisting of a transmitter and a receiver powered by an electric
Marconi's first transmitter incorporating a monopole antenna. It consisted of an elevated copper sheet (top) connected to a Righi spark gap (left) powered by an induction coil (center) with a telegraph key (right) to switch it on and off to spell out text messages in Morse code. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-marconis-first-transmitter-incorporating-a-monopole-antenna-it-consisted-172060180.htmlRMKYX0EC–Marconi's first transmitter incorporating a monopole antenna. It consisted of an elevated copper sheet (top) connected to a Righi spark gap (left) powered by an induction coil (center) with a telegraph key (right) to switch it on and off to spell out text messages in Morse code.
Telegraph office old illustration Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-telegraph-office-old-illustration-50337292.htmlRFCWW1MC–Telegraph office old illustration
EB1911 Telegraph Marconi transmitter receiver apparatus Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-image-eb1911-telegraph-marconi-transmitter-receiver-apparatus-162265583.htmlRMKBYRBB–EB1911 Telegraph Marconi transmitter receiver apparatus
Guglielmo Marconi, shown here in the photograph with his latest invention, sending a wireless telegraphy from Dover Town Hall to South Foreland Lighthouse, through four miles of cliffs. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/guglielmo-marconi-shown-here-in-the-photograph-with-his-latest-invention-sending-a-wireless-telegraphy-from-dover-town-hall-to-south-foreland-lighthouse-through-four-miles-of-cliffs-image560763666.htmlRM2RG8YNP–Guglielmo Marconi, shown here in the photograph with his latest invention, sending a wireless telegraphy from Dover Town Hall to South Foreland Lighthouse, through four miles of cliffs.
An aerial telegraph post in the 18th century. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/stock-photo-an-aerial-telegraph-post-in-the-18th-century-82937463.htmlRMEPX3G7–An aerial telegraph post in the 18th century.
Guglielmo Marconi (1874-1937), Italian physicist and inventor of radio who shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun 'in recognition of their contributions to the development of wireless telegraphy'. Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/guglielmo-marconi-1874-1937-italian-physicist-and-inventor-of-radio-who-shared-the-1909-nobel-prize-in-physics-with-karl-ferdinand-braun-in-recognition-of-their-contributions-to-the-development-of-wireless-telegraphy-image433717620.htmlRM2G5HF70–Guglielmo Marconi (1874-1937), Italian physicist and inventor of radio who shared the 1909 Nobel Prize in Physics with Karl Ferdinand Braun 'in recognition of their contributions to the development of wireless telegraphy'.
