I am a beginner with simulation, but I got my first simple Diode sim following Diode Example by Eric Bredder. I worked with 1N4007 and was able to download the NGSpice model file from ONSEMI website. 1N4007.REV0.LIB
Now I want to continue my work, but I am unable to get the model files for the linear regulators.
One has to acknowledge that searching the data files or the company web pages is somewhat tedious and overwhelming for beginners.
Thus I have added a small collection of models to the above mentioned web page. This collection is by far not complete, but offers examples for various device classes (BJT, MOS, JFet, OpAmp, diodes, and a few others).