On Sun, 2007-01-28 at 23:27 +0000, peter green wrote:
> > 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.

Actually I'll say: get too clever.

The best way to learn IMHO is to make mistakes. Because you made a
mistake like this it's ALWAYS going to be in the back of your mind and
you're a better designer because of it.

TTYL

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