I have an Vogel's bracket for my 40 inch old samsung ue40f7000 tv.
Now i bought a new samsung uhd 43nu7470 and what do i need now to be able to mount my new tv? The instructions are pretty much useless
you need a VESA 200x200 support, you can find it at any dealer, you just have to respect this norn and you have nothing to fear.
I hope that my answer would be useful to you.