need book on dc ac analog digital

check

http://www.ibiblio.org/kuphaldt/electricCircuits/

and

http://www.vias.org/feee/index_a.html

Hi Guest,

From your post, it sounds like you need to start with a book on basic electronics. There you will learn the difference between analogue and digital & AC and DC along with the associated formulae, etc. With the knowlege gleaned from that, you can find a book/books dealing with more specific topics, like "Analogue Fundamentals & Circuit Design" (fictious title), etc.

Use Google!

Mike