5L20.u3 - AC Line Voltage - Peak to Peak
Show AC voltage, from wall socket, peak-to-peak is 330V rather than 120V as expected.
Set variac to 120V. Connect x12 divider plug to variac. Use wire lead to connect meter-scope to divider plug. Divider plug is used because the meter-scope has a built in x10 multiplier, so to get the correct scaled input, the divider plug is used.
Use camera to display wave form produced. Should see that output voltage peak-to-peak reads around 330V when an input of 120V is used.