> Here's the problem...
> (snip)
> Bottom line for me.... Controlling *just* the voltage at Vo does not 
> control contrast.

If I read your post correctly you made a bad voltage buffer, it did not
work, and now your conclusion is that voltage driving does not work????

> yet, to me this is pretty conclusive....

It is, but conclusive of what excatly? That you need much more
experience before you jump to conclusions? 

A free tip (as in free beer): Olin is not known for his subtle human
interface, but I don't recall him being wrong on electrical matters.


Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
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docent Hogeschool van Utrecht: www.voti.nl/hvu
 

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