Hello everyone, I am building the ICD. I am wondering if I can replace the 3.6864Mhz crystal by 4.0Mhz or 3.5Mhz crystal. The reason is that I have lots of these crystals. Thank you in advance. Thomas. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics