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You have pulled a symbol out of the library which has no underlying model file or subcircuit.
You have several choices:
Use the "parameterized" Universal OpAmp symbol. It has Vdd and Vss pins. This is near where you grabbed the one you used. It defaults to a high-performance, rail-to-rail, modern opamp; much higher performance than "old" opamps. You can consider it an 'Ideal" opamp.
Choose a specific OpAmp among Linear Technology's library. Unfortunately, there are no 741s, LM358s, etc.
If you want to model a specific non-LTC product, you will have to learn how to find a model on the web, and import that model into LTSpice. I'm not going to repeat how to that here. The process is well documented...
here is a 741 with same components as per your schematic.
sisiouadial wave for at 1khz amp = 1v
using TINA. it has an ossi scope as well as signal analyser, XY recorder etc.
I like TINA for some things.
raise the dc level and wave gets more curve.
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