First question  is have you read - and played with the examples in - the Simulation Tutorial (3) as linked to in (2) in: [https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a](https://easyeda.com/forum/topic/How-to-ask-for-help-and-get-an-answer-71b17a40d15442349eaecbfae083e46a)<br> <br> Second question is do you have a spice model for the NE566? If not then you need a model creating for it. For help with this please email me at my username at EasyEDA.com. Please also see this topic: [https://easyeda\.com/forum/topic/where\_is\_the\_LM566\_IC\-YWQ82jBTN](https://easyeda.com/forum/topic/where_is_the_LM566_IC-YWQ82jBTN)