I jumped into a Discord Call with @Marco_da_mechanic and we saw the slot mutliplier pcb needs a little adjustment to fit perfectly and after some planning with him we decidet to put the hbj11 (small tube)s filament driver beside the flyback slot on the mutliplier pcb , so i grabed the toroid step model that marco made and made the footprint etc for EASYEDA … then i designed the first Half bridge driver and when i finished it i saw a BIG problem .. i forgot the CT (current transformer) wich is crucial ! So i redesigned it and addet the slot connector .. (If you are interessted in the Xray head assembly go look at marco’s posts) (EDIT : i forgot the stiching vias under the mosfets for thermal , but the mosfets are anyways cooled by the oil !)