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Mastodon.Radio is a space for the Amateur (Ham) Radio community, anyone interested in Shortwave Listening (SWL), etc. Come join us and talk radio, technology, and more!

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Andreas, DJ3EI, he/him

Here is the schematics of a fairly loud sounder. I built this for Berlin 2018, where Berlin clubs operated a joint booth and I served as Morse code + presenter. Something loud enough over the background noise of a faire was needed - this is it!

I've consistently found Morse code demonstrations a wonderful tool to attract people in a public situation: Everybody has heard of Morse code, but hardly anybody has witnessed it in action.

@robotfactory @g0tue_CW