File:TX 1kW 1927.jpg

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Français : Émetteur de secours radiotélégraphique à ondes amorties de 1927. Utilisé sur 500 kHz marine
English: Circuit of a 1 kilowatt marine spark-gap transmitter. These were the first type of radio transmitter, used on ships during the first decades of the 20th century. This trasmitted on the medium frequency band at 500 kHz.
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Date/TimeThumbnailDimensionsUserComment
current15:11, 29 August 2010Thumbnail for version as of 15:11, 29 August 20101,329 × 962 (390 KB)F1jmm (talk | contribs){{Information |Description={{fr|Émetteur de secours radiotélégraphique à ondes amorties de 1927. Utilisé sur 500 kHz marine}} |Source={{own}} |Date= 1927 |Author=F1jmm |Permission= |other_versions= }} == gallery == <gallery> Image:Exe

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