The problem with Op amp and other iC.-s models dev. is that you always miss to conduct a "critical test" . . . that , untill you make it and find out the next flaw . . . coz at the time you only need it to perform certain tasks at certain env. . . .
The first Amp -- it's quite old stuff . . . is the only simulation i found and was able to set to work . . . reasonably near to what you'd expcect it should !?
UPDATE ! -- extended supply - but it's likely a poor op amp compred to the number of transistors used for it
however -- now it !looks! quite decent up to gain 5x ??? ▼
The second Amp
[EoP]
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