Lessons In Electric Circuits
Tony R. Kuphaldt
Open Access and Open Content.
Licensed under Design Science Licence.
Lessons In Electric Circuits is a free series of textbooks on the subjects of electricity and electronics.
Socratic Electronics
Tony R. Kuphaldt
Open Access and Open Content.
Licensed under Design Science Licence.
Socratic Electronics is a free series of worksheets indenting to teach electronics using the Socratic Method.
Electronics Digital Library
http://blog.makezine.com/archive/2008/09/open_source_text_books.html?CMP...