Category:Wireless telegraphy
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Subcategories
This category has the following 35 subcategories, out of 35 total.
A
- Charles E. Apgar (8 F)
C
F
M
- Magnetic detectors (19 F)
- Massie Wireless Station (18 F)
U
- United States patent 1101533 (1 F)
- United States patent 1108529 (20 F)
- United States patent 1119732 (4 F)
- United States patent 1220005 (1 F)
- United States patent 129971 (1 F)
- United States patent 1303730 (1 F)
- United States patent 1322622 (1 F)
- United States patent 1530129 (1 F)
- United States patent 586193 (1 F)
- United States patent 627650 (1 F)
- United States patent 645576 (5 F)
- United States patent 647007 (1 F)
- United States patent 649621 (5 F)
- United States patent 706500 (1 F)
- United States patent 707064 (1 F)
- United States patent 714246 (1 F)
- United States patent 723188 (13 F)
- United States patent 725605 (8 F)
- United States patent 760463 (1 F)
- United States patent 766474 (30 F)
- United States patent 771819 (1 F)
- United States patent 787412 (7 F)
- United States patent 795762 (1 F)
- United States patent 851336 (7 F)
Media in category "Wireless telegraphy"
The following 117 files are in this category, out of 117 total.
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1918 trench wireless set (43110079104).jpg 3,648 × 5,472; 13.27 MB
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AFDCM-02-016.jpg 973 × 760; 116 KB
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AFDCM-02-017.jpg 973 × 760; 117 KB
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Airwaves.jpg 527 × 526; 204 KB
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Carte postale, Épinal, Deux pylones du télégraphe sans fil à la Cense-Billot.jpg 1,047 × 1,647; 253 KB
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Carte postale, Épinal, Les Pylones de la Télégraphie sans fils 2.jpg 1,647 × 1,056; 253 KB
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Carte postale, Épinal, Les Pylônes de la Télégraphie sans fils.jpg 1,628 × 1,079; 299 KB
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Coherer Rcvr.jpg 865 × 664; 46 KB
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Die Gartenlaube (1899) b 0764 1.jpg 1,087 × 1,626; 127 KB
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Die Gartenlaube (1899) b 0764 2.jpg 1,394 × 1,597; 188 KB
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Die Gartenlaube (1899) b 0764 3.jpg 1,654 × 1,388; 173 KB
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EB1911 Telegraph - Alternate Current Transformer System.jpg 766 × 393; 58 KB
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EB1911 Telegraph - bolometer receiver.jpg 512 × 442; 30 KB
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EB1911 Telegraph - Magneto-Induction Method.jpg 373 × 382; 29 KB
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EB1911 Telegraph - Marconi transmitter and receiver (2).jpg 855 × 508; 60 KB
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EB1911 Telegraph - Marconi transmitter and receiver.jpg 843 × 414; 56 KB
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EB1911 Telegraph - Marconi transmitter-receiver apparatus.jpg 298 × 495; 21 KB
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EB1911 Telegraph - Morse's Conduction Method.jpg 352 × 293; 15 KB
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EB1911 Telegraph - two coupled oscillation circuits.jpg 820 × 555; 68 KB
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EB1911 Telegraph - umbrella antenna.jpg 806 × 493; 51 KB
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EB1911 Telegraph - wireless receiver using oscillation valve.jpg 846 × 690; 56 KB
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EB1911 Telegraph - wireless transmitter antenna designs.jpg 815 × 384; 51 KB
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EL MUNDO CIENTÍFICO (1902) 95 05.jpg 1,836 × 2,700; 1.81 MB
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German WW I field telegraph 001.jpg 1,443 × 2,203; 1.17 MB
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German WW I field telegraph 002.jpg 2,204 × 1,425; 928 KB
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Graynella Packer LCCN2014688895.jpg 4,216 × 5,823; 2.12 MB
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Graynella Packer wireless operator LCCN2014688894.jpg 4,235 × 5,791; 2.12 MB
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Guglielmo Marconi 1901 wireless signal-300x189.jpg 300 × 189; 19 KB
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Guglielmo Marconi 1901 wireless signal.jpg 3,000 × 1,849; 1.06 MB
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HEATHKIT HW8 3.JPG 640 × 480; 135 KB
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Hertz schematic0.PNG 425 × 275; 5 KB
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Hertz Transmitter Receiver.svg 990 × 765; 35 KB
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IEEE Plaque by east stairway CoGH jeh.jpg 4,608 × 3,072; 2.84 MB
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IEEE wireless plaque CoGH jeh.jpg 2,794 × 1,863; 1.25 MB
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Interior of Fessenden wireless telegraph station.png 686 × 460; 333 KB
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Key West Wireless Station Postcard.jpg 995 × 1,600; 328 KB
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Lee de Forest wireless telegraph headphones.png 237 × 209; 62 KB
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LOWE 225 CW 7030kHz.jpg 3,146 × 1,340; 885 KB
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Marconi 1897 spark gap transmitter.jpg 429 × 286; 27 KB
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Marconi radio room aboard the 'Olympic'.jpg 1,865 × 1,444; 1.2 MB
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Marconist op een omgebouwd luxe passagiersschip, Bestanddeelnr 935-2844.jpg 2,525 × 2,641; 470 KB
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Marconist van Nederlands koopvaardijschip met Indonesische bode, Bestanddeelnr 935-2885.jpg 3,279 × 2,272; 1.11 MB
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Marshall D. Moran (1906-1992).jpg 585 × 769; 57 KB
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Morse Code Receiver.jpg 448 × 358; 68 KB
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Morseapparat-2.JPG 1,350 × 970; 142 KB
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NSRW Telegraphy, Wireless - coherer.png 697 × 205; 26 KB
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NSRW Telegraphy, Wireless - receiver.png 703 × 891; 92 KB
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NSRW Telegraphy, Wireless - transmitter.jpg 702 × 1,084; 81 KB
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NSRW Wireless telegraph station showing vertical wires.jpg 665 × 647; 70 KB
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NW7US at the Morse-code Key.jpg 2,024 × 1,692; 521 KB
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Perforator.png 1,203 × 620; 977 KB
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Plymouth wirless telegraph.png 2,452 × 2,592; 539 KB
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PSM V56 D0068 Wireless telegraphy experimental components.png 1,646 × 1,155; 140 KB
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PSM V56 D0069 Diagram of arrangement at the receiving station.png 1,222 × 1,142; 79 KB
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PSM V56 D0070 Diagram of the receiver circuit.png 824 × 1,210; 16 KB
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PSM V56 D0071 Photo of electrical lines emanating from the sending station.png 1,638 × 1,066; 379 KB
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PSM V56 D0072 Magnetic whirls around the sending wire.png 1,636 × 1,297; 536 KB
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PSM V56 D0073 Magnetic whirls around the receiving wire.png 1,549 × 1,230; 281 KB
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PSM V56 D0074 Coherer employed to receive the electrical waves.png 1,270 × 136; 14 KB
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PSM V56 D0075 Battery arrangement for coherer and sounder.png 1,577 × 957; 125 KB
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PSM V56 D0076 Photo of electric pulses.png 1,363 × 676; 37 KB
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PSM V56 D0077 Photo of a pilot spark.png 1,284 × 798; 36 KB
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Quenched spark transmitter - Nauen Radio Station, Nauen Germany 1921.jpg 823 × 607; 165 KB
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Radiotelegrafista durante il servizio militare.jpg 3,000 × 4,000; 2.55 MB
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Radiotélégraphiste de train.JPG 1,225 × 1,042; 493 KB
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Recepteur telegraphique tube limaille.jpg 1,280 × 587; 147 KB
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RMS Olympic Radio 1913 colorized.jpg 1,280 × 960; 216 KB
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RX 1914 tranchée colorization.jpg 612 × 787; 151 KB
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RX 1914 tranchée.jpg 612 × 787; 151 KB
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Sayville station.jpg 2,004 × 2,080; 532 KB
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Sayville Wireless Receiving German War Report.png 851 × 1,193; 719 KB
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Sayville wireless station.png 586 × 791; 506 KB
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Scientific American Volume 86 Number 14 (April 1902) (1902) (14587305260).jpg 1,640 × 518; 313 KB
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Scientific American Volume 86 Number 14 (April 1902) (1902) (14587315800).jpg 1,224 × 1,346; 481 KB
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Scientific American Volume 86 Number 14 (April 1902) (1902) (14770847641).jpg 1,386 × 670; 172 KB
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Scientific American Volume 86 Number 14 (April 1902) (1902) (14771662444).jpg 2,862 × 946; 502 KB
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Scientific American Volume 86 Number 14 (April 1902) (1902) (14771663234).jpg 924 × 1,312; 430 KB
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Scientific American Volume 86 Number 14 (April 1902) (1902) (14773672102).jpg 1,198 × 1,660; 332 KB
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Scientific American Volume 86 Number 14 (April 1902) (1902) (14774017015).jpg 1,404 × 1,020; 290 KB
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Scientific American Volume 86 Number 14 (April 1902) (1902) (14793887863).jpg 1,190 × 1,408; 665 KB
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SCR188.jpg 2,106 × 1,696; 823 KB
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Sir William Henry Preece K.C.B. F.R.S., Caernarfon - geograph.org.uk - 2556646.jpg 4,000 × 3,000; 4.65 MB
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Spark gap transmitter diagram (alt).png 7,000 × 7,000; 152 KB
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Spark gap transmitter diagram.png 967 × 955; 51 KB
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Spark gap transmitter.jpg 3,312 × 3,890; 4.14 MB
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Spark-gap apparatus.png 1,097 × 1,109; 1.16 MB
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Station 160m om.JPG 1,327 × 2,211; 1.18 MB
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The Wireless Age cover.png 626 × 878; 491 KB
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Thesos.jpg 340 × 429; 29 KB
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Titanic Marconi Wireless Radio Room.jpg 1,280 × 956; 438 KB
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Tracciato Marconigramma.jpg 2,880 × 4,320; 6.12 MB
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Trascrizione Marconigramma.jpg 4,320 × 2,880; 6.12 MB
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Trasmissione del primo marconigramma.jpg 792 × 560; 136 KB
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TSF - Réclame - Almanach Hachette 1925.jpg 2,845 × 4,351; 8.7 MB
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TSF paquebot Asie (Compagnie des Chargeurs Réunis) 1919.jpg 950 × 1,248; 1,021 KB
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TT CMZ-AF-GT E 2-1 9 45 - Instalação da T.S.F..jpg 509 × 700; 65 KB
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TT CMZ-AF-GT E 2-1 9 46 - Interior da cabine de T.S.F..jpg 906 × 700; 120 KB
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Télégraphie sans fil pour tous.jpeg 940 × 730; 184 KB
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Undulator Tape.jpg 4,416 × 501; 890 KB
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Wire antenna - Nauen radiotelegraphy station in 1913.png 1,151 × 491; 54 KB
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Wireless Operator Sending Messages from SS Olympic Radio Station.jpg 2,734 × 1,854; 2.14 MB
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Wireless Telegraph Ilioupoli Resistance.jpg 4,128 × 3,096; 2.72 MB
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Wireless Telegraphy Act 1905-1919.jpg 656 × 421; 44 KB
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Wireless telegraphy receiver after G. Marconi 1897.jpg 3,072 × 2,048; 2.41 MB
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Wireless transmitter from Paharganj.jpg 1,463 × 1,418; 798 KB