== Eksterne henvisninger ==
{{Commonscat|Printed circuit boards}}
* http://www.ee.washington.edu/circuit_archive/text/design.html {{Webarchive|url=https://web.archive.org/web/20070205093527/http://www.ee.washington.edu/circuit_archive/text/design.html |date= 5. februar 2007 }}
* http://www.precisioncircuits.com.au/cid/hm_cid.html {{Webarchive|url=https://web.archive.org/web/20031125203652/http://www.precisioncircuits.com.au/cid/hm_cid.html |date=25. november 2003 }}
* http://amscourseware.com/guidelines.htm {{Webarchive|url=https://web.archive.org/web/20031008150948/http://amscourseware.com/guidelines.htm |date= 8. oktober 2003 }}
* http://www.filtranmicro.com/design.html {{Webarchive|url=https://web.archive.org/web/20030812151909/http://filtranmicro.com/design.html |date=12. august 2003 }}
* http://www.goldengategraphics.com/pcgloss.htm
* http://www.elchempub.com/files/electroc2.htm {{Webarchive|url=https://web.archive.org/web/20031208152902/http://www.elchempub.com/files/electroc2.htm |date= 8. december 2003 }}
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