Category:Telegraphy: Difference between revisions
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[[Image:Muirhead automatic telegraph syphon receiver (Rankin Kennedy, Electrical Installations, Vol V, 1903).jpg|thumb|right|340px|Muirhead automatic telegraph syphon receiver, 1903]] | |||
A system of telecommunication for the transmission of graphic symbols, usually letter of numerals, by the use of a signal code. Types include electrical, radio, and wireless. | A system of telecommunication for the transmission of graphic symbols, usually letter of numerals, by the use of a signal code. Types include electrical, radio, and wireless. | ||
Revision as of 18:52, 8 July 2011
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A system of telecommunication for the transmission of graphic symbols, usually letter of numerals, by the use of a signal code. Types include electrical, radio, and wireless.
For a history on the telegraph, see the Telegraph article.
Subcategories
Subcategories
This category has the following 11 subcategories, out of 11 total.
Pages in category "Telegraphy"
The following 110 pages are in this category, out of 110 total.
B
C
E
F
G
H
K
M
P
S
- Francesc Salvà i Campillo
- Pavel Schilling
- The Sea and Early Electrical Technology
- Georg Seibt
- Milestones:Shilling's Pioneering Contribution to Practical Telegraphy, 1828-1837
- Archives:Papers of E.W. Von Siemens
- Werner von Siemens
- Samuel Thomas von Sömmerring
- Spark Transmitter
- Stock Ticker
- Oral-History:Ellery W. Stone
- John Stone Stone
T
- Telautograph
- Education:Telecommunication, the Civil War and War of 21st Century
- Archives:The Strategy of System-Building Telecommunications and the American South, 1885-1920
- Telefunken
- Telegraph
- Did the Telegraph Broaden Women's Sphere?
- Quadruplex Telegraph
- Milestones:Demonstration of Practical Telegraphy, 1838
- Long Distance Telegraphy
- Milestones:The Trans-Canada Microwave System, 1958
- William Thomson
- Milestones:County Kerry Transatlantic Cable Stations, 1866
- Transatlantic Cable
- Transcontinental Telegraph Line (U.S.)
- Milestones:Transcontinental Telegraph, 1861
- Transcontinental Telephone Service
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W
Media in category "Telegraphy"
The following 13 files are in this category, out of 13 total.
Bell harmonic telegraph 0640.jpg 2,000 × 871; 167 KB
Chicago Telegraph operating room 0633.jpg 5,746 × 2,902; 2.84 MB
Fig05-SiemensKarolusFacsimileSystem1927 0622.jpg 1,731 × 2,170; 584 KB
Hughes telegraph 0641.jpg 640 × 427; 32 KB
Morse sounder 0497.jpg 570 × 480; 23 KB
Morse telegraph register 0442.jpg 640 × 378; 32 KB
Morse telegraph Register 0642.jpg 1,849 × 1,500; 276 KB
Morse telegraph register 2 0444.jpg 640 × 428; 34 KB
Telegraph Boy 0636.jpg 401 × 640; 31 KB
Telegraph delivery man 0632.jpg 1,871 × 1,500; 470 KB
Telegraph Equipment 0635.jpg 626 × 480; 51 KB
Telegraph operating room 0634.jpg 640 × 407; 64 KB
Telegraph Wires Cincinatti 0418.jpg 622 × 480; 62 KB
