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http://www.akh.se/tubes/crtstat.htm
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http://www.alan-parekh.com/hard_drive_clock.html
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http://fr.wikipedia.org/wiki/Algorith...de_trac%C3%A9_de_segment_de_Bresenham
DIY USB sound card with PCM2702 (quite same as PCM2902)
http://www.myexposition.com/diy/usbdac/overview.html
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http://www.scienceprog.com/alternatives-of-max232-in-low-budget-projects
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http://www.diyaudioprojects.com/Chip/AMP6-DIY-T-Amp-Kit
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http://perso.orange.fr/jm.plantefeve/sche.html
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http://www.ptsoundlab.com/tubes/amplis/tubesamp.htm
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http://modzer0.cs.uaf.edu/~dan/powermeter
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http://mikeyancey.com/FM-Stereo-Broadcaster.php