BRE PETTIS FOXHOLE RADIO PDF

In this episode of MAKE’s Weekend Projects, Bre Pettis shows you how to to make a “foxhole radio” out of a paper tube, wire, paper clips. Flickriver – view images as a ‘river of photos’ and more. How to Make a Foxhole Radio The design can be modified to make the radio tunable. To see all the plans, go to Pettis, Bre. Publisher.

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Bookmarklet While viewing any Flickr photos page, click on the bookmarklet to open the same view on Flickriver.

Make a Foxhole Radio – Weekend Project PDFcast

We needed some confirmation, petgis an ordinary investigation soon paid off as we found this other video of the same phenomenon:. In this case, the effect is seen or heard directly in the transmitter antenna.

The electric current going through the air creates a plasma which, by varying in intensity, can expand and contract, producing sound waves. I took everything outside and tied it off to the top of a tree. Name and Email fields are required. Changing the number of turns is supposed to change the tunning. Or at least, that was how we could understand the effect.

Without it, no sound will come out of the headphone. Menu Skip to content. You can read more about if on HowStuffWorks. It can be miles away, but the closer, the better. Foxhole Radio Project – a photoset by bre pettis on Flickriver.

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IE users – add the link to your Favorites under the Links folder View on Flickriver open on same page View on Flickriver open on new page. Install “View on Flickriver” script. While viewing any Flickr photos page, click on this button to open the same view on Flickriver. I could hear a static noise as I rubbed the wires on the end of the plug.

Firefox and Chrome addons Adds a ‘Flickriver’ button to your browser. It used simple wires, thumbtacks, safety pin, pencil, etc.

Foxhole Radio Project | Flickr

Add to your iGoogle or Netvibes page Flickriver widget for iGoogle or Netvibes can display almost any Flickriver view – most interesting today, by user, by group, by tag etc. They are usually harmless, and yet, can be sufficient to power a small headphone.

One very important electronic element is necessary, however, and that its a rectifieracting as a diode. This is no trick!

Works with Firefox and Internet Explorer. The radio antenna, when properly tuned to the frequency of the radio transmitter, will induce small electric currents. Please enable JavaScript in your browser. You can place your badge on your Flickr profile, Blog or Website.

Listen to a clip of the recording here in MP3 format. After all, with a really big paper clip — one, who knows, 90m long — even without a rectifier, you would just have to be near an AM transmitter at the right frequency to listen to the radio.

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Use Flickriver Badge Creator to create a badge linking to any Flickriver view example: These improvised crystal sets, as they needed no batteries and could be made with household items were very useful to GIs in the Second World War.

How to Make a Foxhole Radio

Here is a short story to understand it: That epttis be fabulous… except that this first hypothesis has its problems. I then switched to a very old telephone operator-style headset that was more sensitive.

Strange voices in hedgerows at night were reported to the police or the Home Guard. Put everything together, and you have a crystal radio set. They can be made, MacGyver style, with a headphone, electric wire, a gadio, safety pin, razor blade and a toilet paper tube.

The shown effect is very cool. Some further ordinary investigation reveals the effect is not that rare.

ATE Central – How to Make a Foxhole Radio

Flickriver needs JavaScript to work properly. As one operator points out:. Brovary town, Russia [Actually, Ukraine].