• qjkxbmwvz@startrek.website
      link
      fedilink
      arrow-up
      6
      ·
      3 months ago

      Yeah, you can also find “crystal radio” kits — radio receivers that use only the received RF to produce sound (no external power source).

      • nondescripthandle@lemmy.dbzer0.com
        link
        fedilink
        arrow-up
        3
        ·
        3 months ago

        The article talks a lot about their rectifier and im guessing that’s where the ‘breakthrough’ is, but still I feel this is like too many of these articles where its a lot of hype for a little progress.