[sdiy] Learning about current sinks and sources

[David G Dixon]

I strongly concur with Neil.  For learning the basics of electronic circuits
with transistors, you really can't beat Malvino.  If you can find it, the
3rd edition is spectacular.  Probably one of the 2 or 3 best textbooks I've
ever seen on any subject (and, being a prof, I've seen lots of textbooks).
Very clear prose, written for people who don't already know (unlike Horowitz
and Hill, which can be quite daunting for beginners).
 
> Start with Malvino's Electronics Principles.  That covers the 
> general area of electronics with transistors and op-amps.  
> What you are asking about is one specific application, and to 
> understand that you really need an understanding of the fundamentals.
> 
> Being a textbook used copies can be had for very little these days.