If you are a ham radio operator of a certain age, you probably remember ads for “The Instructograph,” a mechanical device for learning Morse code. [Our Own Devices] has an ancient specimen of the ...
En janvier 1997, les gardes-côtes français transmettaient leur dernier message en morse : “À tous. Ceci est notre dernier cri avant notre silence éternel.” Mais à la fin du XX e siècle, la radio par ...
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