> When you are comfortable with that, start with op amps, they are
> mathematically very simple (from a 1st order approximation point of
> view) yet can do amazing functions (amplify, invert, integrate,
> differential, etc).
> 
> Once you grasp that try going "deeper". Learn the standard BJT
> transistor configs and build them, experiment with them, tweak them.
just don't get too "clever" if you wan't things to work, for example back when i was doing my A-Level electronics i built a cuircuit that didn't work (supposed to be an audio amplifier, ended up as a rf noise generator) and my tutor couldn't understand why it didn't either. Turns out that adding a high gain but highly nonliniar inverting transistor amplifier stage to the output of an op-amp and taking the feedback to the positive terminal isn't such a good idea even though according to the models of op-amps they teach you at that level it should work.



-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist