[sdiy] Spice beginner / Quadrature oscillator

[Karl Ekdahl]

Hi list

I'm trying to learn Spice (using LTSpice) and model a classic Quadrature Oscillator in it. the schematic i've used is widely known around the internet so it should work, however it's not really. 

Here's a picture of the schematic: www.sdiy.org/knas/temp/Draft1.png the netlist www.sdiy.org/knas/temp/Draft1.net and the LTSpice project file www.sdiy.org/knas/temp/Draft1.asc . 

The damned thing most of the time refuses to oscillate, the one time i've gotten it to it's giving me triangle outputs instead sine/cosine. The only thing i believe i've figured out is that it only works with specific op-amps, i thought for a while that it had to do with rail-to-rail capabilities but i've had it not work with several of those as well.

Help!

Karl


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