Dumitru Stama wrote:

> Turns out that it is a great piece of software for the ones trying to
> learn electronics like i am. 

I fully agree with you on this. However ...

> I posted a screenshot with the proof you need about 2V headroom for TL072
> to work correctly. 

... don't make the mistake to look at simulations as "proof" of anything :)  

They are an extremely helpful tool to quickly analyze different
possibilities with tools you likely won't have the money to put on your
bench :), but to gather something close to "proof" from simulations
requires a quite profound knowledge of both simulations and reality and
their limitations. 

Gerhard

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