anybody know where I can get a good triac model for use in ltspice simulation? been looking like forever. got a diac model that works.

 

some here
https://www.littelfuse.com/technica...technical-center/spice-models.aspx#question_3
but not sure why you would bother simulating a triac circuit.

 

Add my collection of models from my web page:
http://bordodynov.ltwiki.org/
You need the lib.zip file
It has many Triac, Diac and SCR.