Is it? These aren't exactly things on which
textbooks are written.
I am sure you can find hundreds of books and thousands of papers and
thesis all about ancient tool making. At the library.
Pick a obsolete area of electronics - one where the information is "lost"
- then do a little searching for it. You may be suprised at what you find.
William Donzelli
aw288(a)osfn.org