This section contain information on modifications one can do to the NCE systems to improve user experience or operational reliability.
A lot, but not all, of these modification is historic and most of the reasons for doing them no longer exist today.
Below are a list of modifications by web page that cover each type of modification. Each web page will contain the information itself or point you to the place where to get it.
DISCLAIMER: ANY MODIFICATION YOU DO WILL POTENTIALLY VIOLATE NCE WARRANTEE. If you break it or modify it incorrectly, you will have to pay to get it fixed. Do these things at your own risk.