I have an Apple II Plus, with a generic videx videoterm clone for 80-column mode, and hooked up to a Monitor III.
40-column mode looks fine, as you can see:
but 80-column mode is shifted too far to the left:
as you may know, the Monitor III doesn't have any horizontal controls, and neither does the videx.
Do you know of any good way to handle this? Are there any resistor or capacitor values on the videx I should try to tweak, for example?