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Time for Science [daily updated]

RF range finder needs no optical contact
posted March 23 2011 14:41.55 by Giorgos Lazaridis




Here is an innovative idea to measure distance. Instead of using ultrasound or laser, instructable user Jones Electronic used RF signals. What he did is this: He made an RF...

[Via: hackaday]    [Link: Jones Electronic]
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Tags: electronic project   physics   diy   fm/am   

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Amplitude Modulation tutorial + bonus circuit
posted March 8 2011 13:50.48 by Giorgos Lazaridis




I'm not sure where i found this video, nor do i remember since when it is hidden in my bookmarks, but it is simply brilliant! In this video, youtube user afrotechmods explains how...

[Link: afrotechmods]
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Tags: fm/am   electronic project   diy   music   antenna   wireless   inventions   theory/tutorial   history   audio   how it works   

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Tiny FM bug disguised into mint box, WITH mints
posted March 4 2011 13:40.26 by Giorgos Lazaridis




If you have watch many 007-style movies, then you probably have seen many different bug disguises, sometimes as a rose, others as a statue... but tell me, have you ever seen a bug...

[Link: pyroelectro]
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Tags: electronic project   diy   fm/am   wireless   

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Vintage car radio receiver plays MP3
posted December 8 2010 9:16.29 by Giorgos Lazaridis




User nali posted this mod in the the amc forum. He wanted to play MP3 on a vintage car radio, because he did not want to spent $$$. So, he got a normal jack socket with mechanical...

[Link: theamcforum]
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Tags: crazy hack   diy   music   auto/moto   fm/am   

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Shortwave Converter
posted May 19 2010 4:47.33





TheGreatBunghole16 shows a simple way on receiving SW stations in an AM radio. It has a rather long antenna but what matters is that it works.

[Link]
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Tags: diy   fm/am   antenna   

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DIY FM Broadcast transmitter
posted May 18 2010 5:33.18





THEtechknight builded a transmitter that broadcasts on FM band from parts found here and there. The result is a very sharp tuning transmitter working like charm. You can watch the other 2 videos explaining the construction here.

[Link]
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Tags: crazy hack   diy   music   fm/am   

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Radio Transmitter made out of Junk
posted April 15 2010 11:48.44




ranickel shows how to make an AM transmiter litterally out of junk, maybe crappy looking but sure it works.

[Link]
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Tags: diy   fm/am   

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