File:Laeken, Belgium radiotelephone transmitter circa 1914.jpg
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English: Photograph of a radiotelephone transmitter in use at the Laeken, Belgium radio station circa 1914. The device used a high-frequency spark transmitter developed by Riccardo Moretti of Rome and a microphone invented by Giovan Battista Marzi of Cornigliano Liguria, Italy. The station was under the oversight of Robert Goldschmidt. |
| Date | |
| Source | Photograph appearing on page 565 of the May 1917 issue of The Wireless Age, within the article "Radio Telephony: Article V" by Alfred N. Goldsmith. |
| Author | Magazine illustration |
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:04, 3 August 2017 | | 586 × 490 (145 KB) | Thomas H. White (talk | contribs) | User created page with UploadWizard |
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