* Generic Bipolar Op-Amp Models - KiCad simulation demo (generic_models), CC BY-SA 4.0, (c) KiCad developers
* https://gitlab.com/kicad/code/kicad/-/tree/master/demos/simulation/generic_models
* Netlist exported with kicad-cli 9; model files from the project are inlined below.
* Some vendor models use PSpice syntax: run ngspice in compatibility mode (put 'set ngbehavior=psa'
* in .spiceinit), as KiCad's simulator does.
.title KiCad schematic
.include "/usr/share/kicad/symbols/Simulation_SPICE.sp"
.model __Q1 NPN
V2 +5V 0 DC 5 
C1 /in Net-_Q1-B_ 1u
R2 Net-_U1--_ /in 10k
XU1 0 Net-_U1--_ +5V -5V /out kicad_builtin_opamp POLE=30 GAIN=100k VOFF=10u ROUT=10
R1 /out Net-_U1--_ 100k
V1 0 -5V DC 5 
V3 /in 0 DC 0 SIN( 0 0.1 1k 0 0 0 ) AC 1  
R5 +5V Net-_Q1-C_ 5k
C2 Net-_Q1-C_ /outb 1u
R3 Net-_Q1-B_ 0 10k
Q1 Net-_Q1-C_ Net-_Q1-B_ Net-_Q1-E_ __Q1
R6 Net-_Q1-E_ 0 330
R7 /outb 0 100k
R4 +5V Net-_Q1-B_ 50k
* analysis from the project's simulator workbook (generic_opamp_bip.wbk)
.tran 10u 10m
.save all
.end