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Telharmonium (en.wikipedia.org)

submitted 11 months ago by silverchase@sh.itjust.works to c/wikipedia@lemmy.world

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A 19th-century synthesizer that broadcast music over telephone lines. You'd pay to listen to electronic telephone concerts. The power needed was so great that the music signal would crosstalk to nearby phone lines.

It only ran for a handful of years. As this got started, radio was becoming more widespread.

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[–] merde@sh.itjust.works 6 points 11 months ago

i remember learning about telharmonium from a 99% invisible episode ☞ https://99percentinvisible.org/episode/mini-stories-volume-17/