Here you'll find an article about simple etching wit PNP-Paper and Feric-chloride.
http://www.ganoksin.com/borisat/nenam/easy_etching.htm
Edmund
Here you'll find an article about simple etching wit PNP-Paper and Feric-chloride.
http://www.ganoksin.com/borisat/nenam/easy_etching.htm
Edmund