jetlib.sec » Hack a Day » Radios without power sources

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Hack a Day

• January 25, 2011
• 

  Radios without power sources

  Posted: January 25th, 2011, 9:00am PST by Mike Szczys

  Tags:  power goodhart radios germanium-diode earpiece radio hacks  

  [Goodhart] is sharing his process for building a couple different AM radios. It’s surprising how few components he’s using; the first build is just a germanium diode, some wire, and a piezo earpiece. But it strikes us that both of the radios he gives build instructions for have no power source. We’re also amused by [...]