Re: XL741 Discrete Op-Amp Kit how to measure the open loop gain in its bandwidth, its frequency response

[Windell Oskay]

Use the same techniques that you would with any other op-amp.  The hard part is usually understanding what each of those terms really mean in the real world– once you do, it becomes somewhat reasonable to start to design your own tests with them. You might start with a few separate Google searches on how to measure those values.  

Here are some starting points for you:

 http://www.analog.com/library/analogDialogue/archives/45-04/op_amp_measurements.html

http://electronics.stackexchange.com/questions/58925/obtaining-an-op-amps-open-loop-gain

http://electronics.stackexchange.com/questions/73689/what-is-input-and-output-impedance-of-an-opamp

http://www.sengpielaudio.com/calculator-InputOutputImpedance.htm