Have a house built in the 1930’s (Knob-n-pole). Want to add some 12-2 wiring for extra lights in living room. How do you tie the 12-2 into Knob-n-pole?
Call in an electrical contractor ,Now might be good time to get your home electrical upgraded.
Takes special skills few have with soldering connection joints for one thing and yes is time to update.
If you have knob and tube from the 1930s and it hasn’t been recently deemed safe by a licensed, competent electrician, don’t plug anything in except a smoke alarm. 