No matter what, this won't be easy, it's been sitting since the 70s gathering dust, the neglect, and broken coil, working out how to debug it w/o a enclosure.
The SAMS says the tube is a 12LP4, though I can't see any numbers on the tube, but it IS an rca, the schematic for the RCA 630 shows a EM ion trap, the one for the FADA 895 does not.
I don't know if the SAMS is wrong, sams photofact "74-3" and it DOES have a EM ion trap, or it has a pm one and I did not see it, (did not look very close ), or it's lost over the years.
If lost, that is yet another thing I'd have to find for it
