Not sure where to drop this figured this would be a good as place as any.
how about a thread where we can drop links and suggestions to books, materials & references that would be useful to the group.
Here's a good one, stumbled upon it the other day and forgot I actually have a copy but figured for others it may be helpful.
A very good book on tubes and while not comprehensive it does cover enough of the basics and some advanced topics to understand how to design and work with tubes. A lot of books cover the deeper aspects of tubes and while that is useful in certain aspects this book covers more of the applied use in radio etc.. and is a good primer for the old tech.
John F Rider was in the Signal Corps and writes from a very experienced field applied perspective, also his writing style is very informative and not dry like most technical books.
For electrodynamics and physics you can't go wrong with a very good graduate text:
Classical Electrodynamics by Jackson
This is a tough book, I think there are three editions now. it's $$$ but worth the money as you'll always refer back to it, nothing out there comes close to the information in it. check Amazon for availability and pricing.
For the autodidacts out there:
Calculus by Spivak, best money you could spend on a very comprehensive text book and answer book depending on edition.
If I think of more I'll post up