Category:Spark-gap transmitters
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Subcategories
This category has the following 2 subcategories, out of 2 total.
S
- Spark-gap transmitter circuits (49 F)
É
- Émetteur de Lafayette (10 F)
Media in category "Spark-gap transmitters"
The following 111 files are in this category, out of 111 total.
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00159 Oscillatore del Righi.jpg 5,184 × 3,456; 4.88 MB
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Airwaves.jpg 527 × 526; 204 KB
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Bill's HF Start for a TIG welder (2986184847).jpg 2,304 × 3,072; 2.72 MB
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Bill's HF Start for a TIG welder (2986184869).jpg 1,152 × 1,536; 345 KB
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Boîte de couplage émetteur 500kHz.jpg 1,668 × 2,204; 5.04 MB
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Brockhaus-Efron Oscillation 2.jpg 216 × 220; 15 KB
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Bundesarchiv Bild 102-10978, Nauen, Grossfunkstation.jpg 797 × 535; 70 KB
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Bundesarchiv Bild 102-13265, Nauen, Funkstation.jpg 800 × 559; 61 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 3.jpg 1,654 × 1,388; 173 KB
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Donald Manson working as an employee of the Marconi Company.jpg 633 × 480; 80 KB
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Ducretet-Popov spark gap transmitter.png 1,218 × 811; 503 KB
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Early Lecher line.png 985 × 503; 58 KB
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Electropolis Mulhouse 154.JPG 1,600 × 1,200; 488 KB
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Fessenden synchronous spark transmitter.jpg 1,956 × 1,335; 591 KB
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FFU trx Stiff 1904.JPG 1,280 × 1,136; 143 KB
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Gbgradio3.jpg 1,772 × 1,309; 1.23 MB
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Griffin & George spark gap at MIT flea.agr.jpg 3,264 × 2,448; 5.13 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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Guglielmo Marconi posing.jpg 3,118 × 3,461; 3 MB
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Heinrich Hertz discovering radio waves crop.png 1,105 × 1,105; 228 KB
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Heinrich Hertz discovering radio waves.png 1,136 × 1,764; 259 KB
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Hertz drawing of his spark transmitter 1888.png 346 × 499; 21 KB
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Hertz first oscillator.png 1,345 × 233; 14 KB
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Hertz micrometer resonator.png 860 × 1,412; 84 KB
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Hertz radio wave experiments - crossed polarization.png 393 × 234; 3 KB
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Hertz radio wave experiments - parabolic antennas.png 495 × 268; 6 KB
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Hertz radio wave experiments - polarization filter.png 401 × 488; 14 KB
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Hertz radio wave experiments - refraction.png 387 × 201; 6 KB
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Hertz spark gap transmitter and parabolic antenna.png 816 × 926; 130 KB
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Hertzian spark gap transmitter and receiver.png 594 × 241; 44 KB
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Hertzian spark radio transmitter 1902.jpg 637 × 453; 91 KB
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Hertzian wave apparatus - Augusto Righi 1897.png 709 × 415; 68 KB
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Innsbruck-Museum Zeughaus-phone exhibition-morse code machine-01ASD.jpg 2,732 × 2,986; 477 KB
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Jagadish Chandra Bose microwave apparatus.png 837 × 513; 46 KB
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Leyden jars Nauen wireless telegraphy station 1908.jpg 1,544 × 1,160; 622 KB
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Lodge spark oscillator 1894.png 237 × 256; 19 KB
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Lodge spark transmitter1894.png 660 × 603; 117 KB
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Marconi 1897 spark gap transmitter.jpg 429 × 286; 27 KB
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Marconi and his wireless apparatus 1897.jpg 1,011 × 555; 176 KB
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Marconi Carnarvon 300kW transatlantic spark transmitter 1919 - tuning coil.png 1,153 × 873; 667 KB
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Marconi Model P-4 2 kW ship spark transmitter.jpg 1,123 × 1,164; 170 KB
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Marconi operator aboard ship "Deutschland", at his instruments LCCN2014683102.jpg 5,785 × 4,204; 2.51 MB
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Marconi parabolic xmtr and rcvr 1895.jpg 559 × 295; 79 KB
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Marconi spark transmitter on SS Minnetonka 1902.jpg 627 × 591; 108 KB
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Marconi Type E-2 500W ship spark transmitter.jpg 1,400 × 1,060; 316 KB
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Marconi's first radio transmitter.jpg 924 × 1,372; 419 KB
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Massie spark gap.jpg 640 × 480; 30 KB
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Modern Spark Gap Transmitter.jpg 4,624 × 2,600; 3.3 MB
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Morseapparat-2.JPG 1,350 × 970; 142 KB
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Murdock 1 kW rotary gap spark transmitter 1914.jpg 919 × 799; 87 KB
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Navy NAA spark transmitter Arlington 1913.jpg 2,112 × 1,384; 621 KB
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Post Office Engineers-colorized.jpg 1,024 × 707; 218 KB
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Post Office Engineers.jpg 4,440 × 3,065; 1.76 MB
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Powerful spark gap transmitter.png 688 × 866; 155 KB
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Progress in Electronics 6c 1973 issue U.S. stamp.jpg 1,294 × 832; 397 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 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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PSM V63 D117 Various forms of marconi antennae.png 1,111 × 603; 55 KB
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Quenched spark gap - cutaway drawing.png 682 × 402; 71 KB
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Quenched spark gap 1915.jpg 905 × 557; 117 KB
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Quenched spark transmitter - Nauen Radio Station, Nauen Germany 1921.jpg 823 × 607; 165 KB
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Radio MARCONI.jpg 902 × 791; 572 KB
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Refraction of Hertzian waves by a paraffin lens 1897.png 593 × 275; 17 KB
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Refraction of Hertzian waves by paraffin prism.png 2,548 × 1,288; 25 KB
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Righi spark gap.jpg 1,032 × 916; 98 KB
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Rotary spark gap 1919.jpg 478 × 305; 28 KB
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Rotary spark gap transmitter.jpg 700 × 450; 135 KB
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Ship spark transmitter tuned circuit 1921.jpg 852 × 1,128; 223 KB
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Small spark gap transmitter and coherer receiver.jpg 1,141 × 557; 151 KB
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Small spark gap transmitter.jpg 788 × 676; 91 KB
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Spark gap generator, Inishowen Museum - geograph.org.uk - 5811983.jpg 1,024 × 768; 352 KB
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Spark gap transmitter bandwidth - 1.png 715 × 876; 119 KB
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Spark gap transmitter bandwidth - 2.png 460 × 545; 46 KB
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Spark gap transmitter bandwidth - 3.png 718 × 872; 114 KB
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Spark gap transmitter bandwidth - A.png 722 × 863; 135 KB
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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 wireless station 1910.jpg 684 × 557; 154 KB
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Spark transmitter at Ambon Indonesia 1921.png 976 × 696; 496 KB
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Spark-gap apparatus.png 1,097 × 1,109; 1.16 MB
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Stamp US spark coil.jpg 360 × 230; 52 KB
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Telefunken ship radio room 1919.jpg 853 × 1,011; 192 KB
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Tesla Effect (Spark Gap Transmitter).png 744 × 887; 151 KB
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Trasmettitore di Augusto Righi.JPG 1,600 × 1,200; 525 KB
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TRX républic 1909.JPG 783 × 665; 96 KB
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TSF chalutier 1922..jpg 1,280 × 894; 149 KB
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TSF paquebot Asie (Compagnie des Chargeurs Réunis) 1919.jpg 950 × 1,248; 1,021 KB
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Two-kilowatt rotary quenced gap from the March 1916 QST.png 766 × 495; 45 KB
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Variometer antenna loading coil for spark transmitter 1920.jpg 520 × 605; 89 KB