Hi
At first I was using the library opamp LT1013/14 which is the same as the LM324 I would like to use in real life. LT does not even list a bandwidth for this unit, so I looked up the LM324 and it is a whopping 1MHz ! That made me suspect the opamp needs higher bandwidth to make a 100kHz oscillator, so I changed it to LT1028 which always works - and it did, sort of.
With LT1028 subbed in, one of the circuits oscillated but the output was far from being a sine wave.
Another oscillator option I found is a Colpitts, which is nice and simple: a 100kHz crystal in series with 1nF, with a pair of 1nFs in series across the cap/xtal with their junction tied to ground,tThis is in the feedback path a an n-jfet with 1M gate to ground and 4k7 drain to V+. I look in the miscellaneous parts folder and there is a crystal listed. However, the specs it wants are for its parasitic elements and does not ask for the frequency !
Are there actual spice models for crystals for timing circuits?
I still suspect the settings for the test are incorrect?