I apologize if I missed this info elsewhere. I have an 80 YO bungelow with seemingly healthy knob and tube wiring. The house has a combination of old and new wiring depending on when past work was done.

My question is what is the safest, code friendly or preferred way to mate the old K&T to new 14/2 wiring where needed? What is the technique for safely securing them in a junction box while maintaining their separation/insulation?

Thanks in advance for your professional advice and help.