how to test op amp 741
I have never seen any analog IC tester, but I believe there is, and it must be hard to find and expensive.
Not all of the commercial semiconductor parts are tested at factories.
In my experience, I build a simple oscillator using the IC with the basic circuit in the datasheet or any book about opamp. The output via buffer drives the LED when I have no frequency meter, and the oscillator is calculated and built for the frequency of about 1Hz, with frequency meter, the oscillator can be built with high frequency.
Once the oscillator works, then the IC is good. I have never disappointed with this way of testing op amp.
nguyennam