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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I decided to Google the station and I found them here along with all of the transmitter specs. I petfis switched to a very old telephone operator-style headset that was more sensitive.

Does a single turn equal. As one operator points out:. And in the case of AM radio, the induced electric currents will even be directly related in their amplitude to the sound being transmitted, which means no complicated circuitry is needed to hear them.

We needed some radip, and an ordinary investigation soon paid off as we found this other video of the brre phenomenon:. Once added to your personalized homepage, just edit widget settings to select your desired view.

ยป MAKE: Foxhole Radio

You can place your badge on your Flickr profile, Blog or Website. You can read more about if on HowStuffWorks. I then decided to amp things up a bit and use the M-Audio Microtrak to amplify and brw the sound. So what you see is my attempt at making one click for a larger view. Weekend Project showed how to make a pettus radio. Among the simplest radios that can be built are the crystal radios. Changing the number of turns is supposed to change the tunning. They may sound like urban legends, but as we have seen now, they are more than plausible.


How to Make a Foxhole Radio

Strange voices in hedgerows at night were reported to the police or the Home Guard. As one operator points out: Some further ordinary investigation reveals the effect is not that rare. Here the overloaded antenna discharges in the air, and even without rectification, the arcs produce audible sound. The shown effect is very cool. Or at least, that was how we could understand the effect.

I could hear a static noise as I rubbed the wires on the end of the plug.

In the video above it was made from the safety pin to hold a pencil over a rusty razor blade. This project was very approachable since it didn’t require any specialized electronics, hard to find diodes, chips, resistors, latches, etc etc. Without it, no sound will come out of the headphone. June 10th, by Mori.

I was also lucky enough to hear the station ID. By putting another grounded steel cable in contact with it, the current flows and then fly through the air, creating a plasma which changes along with the radio signal, translating into audible sound.

Put everything together, and you have a crystal radio set. In the area of the effect of radio waves very big potential difference emerges. On investigation it was found that modulated arcs on barbed-wire fences were picking up BBC World Service transmissions. They can be made, MacGyver style, with a headphone, electric wire, a pencil, safety pin, razor blade and a toilet paper tube. Works with Firefox and Internet Explorer.


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Foxhole radio Among the simplest radios that can be built are pttis crystal radios. There are a lot of ways radio waves can be heard. Edited by Kentaro Mori. Use Flickriver Badge Creator to create a badge linking to any Flickriver view.

This got me thinking. Use Flickriver Badge Creator to create a badge linking to any Flickriver view example: Badge creator Use Flickriver Badge Creator to create a badge linking to your photos, your group or any other Flickriver view. 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.

Perhaps the Mythbusters should indeed reevaluate the polemic case of the talking tooth fillings. I put the headphones and and huzzah!