Bruce: Packard Bell did have a model 46J with that tube line-up. IF is 460kc. I don't see it listed here, but if you have access to Rider's manuals, check 12-2.
Steve
Sir Bruce:
Herewith. . . . one 46J copy from Red Ryders Manual:
(Little Beaver wasn't around). . . . .
There is also the possibility of checking out certain circuit similarities on the the 66 series of chassis' and take note of the rectangular versus square chassis layout. See if that
is akin to it, or at least close enough to work with or it might clarify some parts values as well as some alignment info.