"प्रिन्टेड सर्किट बोर्ड": अवतरणों में अंतर

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पंक्ति 46:
* [https://web.archive.org/web/20090226025636/http://circuitsassembly.com/cms/content/view/6821/95 Lead Free Laminates and Finishes]
* [https://web.archive.org/web/20090614012805/http://www.saturnelectronics.com/minimumguides.htm Lead Free HASL Minimum Thickness Guidelines]
*[https://www.akvtechnical.com/ '''हिंदी में इलेक्ट्रॉनिक्स प्रोजेक्ट की जानकारी''']
 
[[श्रेणी:इलेक्ट्रॉनिक्स]]