How do you wire ceiling lights with nob and tube?

Answer 1

If you are adding a new light, do not touch the old nob and tube. It is out dated and you should be in the precess of removing it. Never add tonob and tube. If you are just replacing a light fixture you want to put the new fixture back the same way you took the old one out. You need to take extra care not to move or disturb the wires too much. The old insulation can become brittle and break off. In general if you still have knob and tube you should start the process of replacing it.