[sdiy] Simple discrete Unity-Gain Follower ?

[Czech Martin]

>So, I guess this is why op-amps got so popular, they save you a bundle of
>headaches. However, a properly designed amplifier may very well be op-amp free,
>no problems!

... and it will have much of an op amp topology, the more accuracy you 
need, the more it will look like a discrete op amp.
So why not using the *right* op amp in the first place?

Why do you want to avoid an op amp at all cost?

Several times 600 ohm makes 100 Ohm or 60 Ohm,
for 1Vpp this is allready about 10mA current, and about
5 mW (sine) in the load.

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