Category:Wireless telegraphy

Subcategories

This category has the following 41 subcategories, out of 41 total.

Media in category "Wireless telegraphy"

The following 118 files are in this category, out of 118 total.

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  1913 Marconi operator room for 5 kilowatt ocean liner station-colorized.jpg 677 × 495; 74 KB
  
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  1918 trench wireless set (43110079104).jpg 3,648 × 5,472; 13.27 MB
  
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  63 - Interior da estação do telégrafo sem fio de Guarapuava, ao lado, o major Amaro Soares Bittencourt, chefe do Serviço de Transmissões das FO.jpg 448 × 287; 164 KB
  
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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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  Bijschrift On Sparks many lives may depend. Wireless operator on converted D, Bestanddeelnr 935-2843.jpg 2,541 × 2,641; 477 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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  Carte Postale, Épinal, Panorama vers le Bois de St Antoine et la Télégraphie sans fil.jpg 1,630 × 1,058; 257 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 - antenna direct-coupled to closed oscillatory circuit.jpg 836 × 297; 33 KB
  
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  EB1911 Telegraph - bolometer receiver.jpg 512 × 442; 30 KB
  
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  EB1911 Telegraph - electric wave detector using electrolytic cell.jpg 402 × 430; 24 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 - Vacuum Thermal Detector for Electric Oscillations.jpg 172 × 358; 12 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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  Fotothek df n-19 0000253 Funkzirkel, Gesellschaft für Sport und Technik (GST).jpg 798 × 800; 214 KB
  
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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 operator aboard ship 'Deutschland', at his instruments LCCN2014683102-edited.jpg 948 × 677; 268 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 een Nederlands koopvaardijschip geeft een bericht aan een Indones, Bestanddeelnr 935-2945-colorized.jpg 1,024 × 686; 134 KB
  
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  Marconist van een Nederlands koopvaardijschip geeft een bericht aan een Indones, Bestanddeelnr 935-2945.jpg 3,679 × 2,464; 1,008 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; 117 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 Museum of Electrical Invention - interior 27 - spark transmitter - Radiguet & Massiot, France, c. 1900.jpg 4,288 × 2,848; 5.43 MB
  
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  Spark-gap apparatus.png 1,097 × 1,109; 1.16 MB
  
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  StateLibQld 2 198235 Twelve year old Madeleine Pugh operating a radio in her home at Wynnum, Brisbane, 1934.jpg 1,000 × 760; 83 KB
  
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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