Elektor Electronics 1979-06
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Home Power Magazine – Issue 061 – 1997-10-11
Silicon Chip 2007-02
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Elektor Electronics USA – December 2014
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Home Power Magazine – Issue 016 – 1990-04-05
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le Strade – N 10, Ottobre 2014
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Lightwave – November 2008
Desktop Engineering – July 2010
Silicon Chip 2008-09
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Alternatives Journal – October 2014
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Elektor Electronics 1980-03
Techlife News Magazine – 02 November 2014
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