Elite, master and ultomate circuit parts require fine signalum wire for making them: 2https://ftb.gamepedia.com/Circuit_Part_(Elite) How to obtain signalum without Thermal Expansion (I will not add it to my mudpack, it breaks my ‘no magic’ concept with tesseracts and other things.

Crucible, there is a Recipe for it. Be sure to enter the ingredients in the right order so you dont end up with a different Alloy. Also gonna whitelist https://ftb.gamepedia.com