Thank you Free. It depends on how strong the colony in the TBH is. You could take 3 or 4 brood combs out of the TBH & attach them to the empty frames as suggested. You’ll need to pick the frames that wont break away while shaking, the older ones I’m guessing.
Place those in the center of the brood box,being careful that the combs aren’t touching each other. What I would do then is shake some of the bees from the TBH into the nuc box from other frames that wont fall apart during shaking. Be careful not to transfer the queen.
I like frames with wax foundation, I would fill the nuc box with the rest of the frames with wax foundation. Make sure that there is some honey as well as brood in the nuc box. Also make sure that all of the brood is worker brood that contains some eggs or very young larvae. Close the nuc box up with a vented entrance as well as duct tape some fly wire to the hole in the inner cover. Place it where you want it to stand. Put the roof on as long as it’s vented, then leave it for 3 days (shaded) before opening it after placing a branch in front of the entrance. That will make sure that the bees remain with the nuc box.
Do you have a mentor or someone else with more experience with handling TBH’s that can help you? I’m aware that people with TBH’s don’t like smokers. A smoker would be essential for taking on a task such as this.
Good luck with that, bye for now.