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http://www.dopero.de/Eingang/Kite_Aer..._4_GHz_Antennen/2_4_ghz_antennen.html
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http://events.ccc.de/congress/2007/Fahrplan/events/2166.en.html
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http://hackaday.com/2016/01/05/25-yea...-of-hardware-manufacturing-in-plovdiv
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http://www.byteofpython.info/read/index.html
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http://arstechnica.com/articles/culture/surface.ars
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http://www.electronixandmore.com/project/index.html
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http://wwwhome.cs.utwente.nl/~ptdeboer/misc/mains.html
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http://www.scienceprog.com/alternatives-of-max232-in-low-budget-projects
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http://www.purepeople.com/2665-Anne-R...moment-de-rigolade-.html#comms_anchor
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http://www.bonavolta.ch/hobby/en/audio/audioel.htm#Amps