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http://www.electric-clothing.com/superpov.html
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http://www.electronixandmore.com/project/index.html
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http://www.dl5neg.de/bootloader/bootloader.html
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http://positron.jfet.org/nixie-1
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http://dev.emcelettronica.com/ac-powe...-line-filter-homemade-circuit-breaker
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http://www.scienceprog.com/acces-lpt-...ports-easily-under-windows-nt-2000-xp
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http://wiki.jelectronique.com
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http://wwwhome.cs.utwente.nl/~ptdeboer/misc/mains.html
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http://www.akh.se/tubes/crtstat.htm
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http://www.alan-parekh.com/hard_drive_clock.html