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Communication Devices |
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Acoustic Transmitter Edison's acoustic transmitter.... |
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Articulating Telephone Edison's first Articulating Telephone.... |
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Bell telephone Man speaking into telephone.... |
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Buoy, Brown's Bell A Bell buoy that sounds when the sea is rough.... |
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Carbon Telephone Edison's Carbon Telephone. He tried using carbon with the purpose of reducing the delicacy of the instrument.... |
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Chemical Telephone An interior view of the chemical telephone.... |
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Chronograph and Switch-board A chronograph and switch-board.... |
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Edison, Thomas Alva Edison talking into the phonograph.... |
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Electro-motograph The first stage of the elctro-motograph discovery.... |
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Magnetic Telegraph "Morse magnetic telegraph will be understood by reference to the accompanying diagram, which represents the construction and arrangement of this form of telegraph. F and E are pieces of soft iron sur... |
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Microphone Boy listening to microphone.... |
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Morse Apparatus, Circuit and Battery Samuel F. B. Morse independently developed an electrical telegraph in 1837, an alternative design that was capable of transmitting over long distances using poor quality wire.... |
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Morse Key Telegraph key, also known as a Morse key, are generic terms for any switching device used primarily to send Morse code.... |
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Morse Register An electronic device used to record Morse code on a roll of paper.... |
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Morses Telegraph "The machine itself is sufficiently simple, and will be comprehended at once, by those who have made electro-magnetic experiments, by the annexed diagram and description. The temporary magnet a, enve... |
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Phonograph An instrument for recording and reproducing the vibrations of sound. It was invented by Thomas A Edison in 1877, and has been improved by him and other inventors.... |
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Receiver, Wireless Telegraph "Wireless Telegraphy is a system of transmitting messages between distant points without the use of wires."—(Charles Leonard-Stuart, 1911)... |
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Recorder, Morse An electronic device used to record morse code on a roll of paper. ... |
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Recorder, Siphon A type of telegraph recorder using a siphon with the ink. ... |
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Station, Wireless Telegraph telegraph, morse, wireless... |
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Switchboard "Under side of a modern switchboard, showing 2,000 telegraph wires."—E. Benjamin Andrews 1895... |
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Telegrams Instrument for sending telegrams... |
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Telegraph Samuel F. B. Morse's original model of the telegraph insrument.... |
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Telegraph A man operating an electro-magnetic telegraph. ... |
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Telegraph An instrument to send messages by means of electricity, either at short or long distances. An instrument of this kind is frequently called the electric telegraph.... |
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Clipart ETC is a part of the Educational Technology Clearinghouse and is funded by various grants. Produced by the Florida Center for Instructional Technology, College of Education, University of South Florida. Email the project manager.