I have never seen a ferrite rod 90mm diameter, they are more likely to be 9mm diameter and 100 to 150mm long.
The schematic looks to be a medium wave receiver. Do you have strong signals in yout area.
Make a wooden rod the same diameter as the ferrite rod.
Wind some paper around it and glue with PVA to make a tube.
Put a dint in each end of the wooden rod so that it can be rotated on two spikes or put it into a hand drill, my lttle drill has a 4:1 gear ratio.
Wind on L1 with the turns touching. Glue the ends down perhaps with hot melt glue Slide off the rod.
Wind on L2 and L3 side by side in a similar way.
Put the two assemblies on the ferrite rod spaced at a few mm.
The ferrite rod is very brittle so should be handled with care.
Some PTFE plumbers tape wound on the wooden rod may make the coils easier to extract.
The position of the coils on the rod can be fixed with traditional beeswax but I tend to favour hot melt glue as it can be removed cleanly.
If you break the rod, it can be glued together with epoxy with little degradation in performance.
A scrap transistorised radio may well have a ferrite rod complete with L1 and Cv
Sorry man, i just dont understand so good, because is my 4 times that i make bad ferrite, i know i make mistake,
i have signals,
i try i search i on internet for ferrit rod, i make nervous, i dont find nothing easy
you mean wooden to hold the ferrit rod?
so in the ferrit rod, to wind a paper with glou after to wind the L1, to glue the ends of L1 , and for L2 and L3 the same so they can move L1 L2 L3 with the paper right and left right to the ferrit rod?
what if L1 magnetic wire touch L3 of L2, is a problem, of i have to tape?