The input offset voltage is no longer just a little bit, it seems on some sensitivity scales to be a full div or more. When it was small it was a teaching experience, but with it so large it's genuinely confusing to try to explain what's going on in a circuit with reference to a signal shown on the scope. I think we need a way to zero the sensitivities. Perhaps there's a way to auto-zero it? If not, it's fine to have students zero it (once again a learning experience to do that) but it would not be fine if it has to be done every day. It would need a session-to-session memory.
The input offset voltage is no longer just a little bit, it seems on some sensitivity scales to be a full div or more. When it was small it was a teaching experience, but with it so large it's genuinely confusing to try to explain what's going on in a circuit with reference to a signal shown on the scope. I think we need a way to zero the sensitivities. Perhaps there's a way to auto-zero it? If not, it's fine to have students zero it (once again a learning experience to do that) but it would not be fine if it has to be done every day. It would need a session-to-session memory.