The K7NV Notebook is a collection of web pages with some information about a few topics that may be of general interest to some Amateurs. The information is not remotely close to everything there is to know about the topics, simply some thoughts that might be helpful.
Notebook Index
Click on the topic to access the page

As, is customary with everything on this website, I only offer comments to stimulate thought, and hopefully help fellow Amateurs. None of the information provided is authoritative in any manner or guaranteed to be correct. The reader is encouraged to research these subjects and make his own determinations about these things, before trying to apply them in the real world.