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jmluber writes in with another radio project -

In the old days, people used radios that used a germanium diode (crystal radio) to receive am radio without the need for a battery (the radio wave powers this type of radio). This site modernizes that concept by showing you how to build a shortwave radio that utilizes a germanium diode.

Build a crystal shortwave radio – Link.


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Make a Foxhole Radio – Weekend Project Podcast – Link.

Make a Foxhole Radio – Weekend Project PDFcast – Link.

  • King Kalinga

    can you explain in detail to make a SW radio