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Crystal radio from ignition coil.

Lightium

Lightium

Active Member
Look at my contraption. It's supposed to be a self-powered active crystal radio.
Screenshot at 2025-01-19 04-47-46.png
 

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  • crystal-radio_ignition-coil.asc
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There's no audio. Your speaker won't do a lot with a 680kHz drive.
 
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