Hi I read up on the spice simulation tutorial and there was a nice article about probing. In this article I found you can use an ammeter to probe voltages. I could not find it in the standard EELib. I did find a lot of them in the user contributions section. In the simulation article it also is mentioned to avoid user contributed models. So which one to use? I see that Andy Fierman uploaded an Ammeter. Should I use that one? Same question for the Diff_V_Probe. Cheers, Martin