I opened "Bob Pease's High Impedance Active Scope Probe simulations" from [https://easyeda.com/andyfierman/projects](https://easyeda.com/andyfierman/projects), saved it to my workspace, switched to Sim mode and tried to run it...
To start with, it has a problem with the trimpot:
![image.png](//image.easyeda.com/pullimage/TPEm5IgYJE7MdKxgk29L0vb98aRSh6Jj7uUHnqB0.png)
If I replace the trimpot with a library potentiometer, I get:
![image.png](//image.easyeda.com/pullimage/tAOYrJ3eq8olnC3gooCOjl22cCoMX89GlqzMoBfP.png)
Orin.
Chrome
79.0.3945.79
Windows
10
EasyEDA
6.2.46