Radio without power source

[Gert van der Hoek]

The crystal radio receiver (also known as a crystal set) is a very simple kind of radio receiver. It needs no battery or power source except the power received from radio waves by a long outdoor wire antenna.

You make it yourself for a few dollars, or buy it.

The general principle is explained in Wikipedia:

http://en.wikipedia.org/wiki/Crystal_radio_receiver

If you do a Google search on "crystal radio" you will find more.

 

[tropical]

Re: Radio without power source

After turning from cellulars to that, the next step will be turn on to pipes, and than to bongos ...

 

[Gert van der Hoek]

Re: Radio without power source

Well, I would prefer to prepare for a `pandemic light`, without power cuts.