[OldRestorer]

Ok I checked and only the the L49B is an octal tube. the rest are 2 fat pins and then thin pins.

As for the numbering I get it a bit but I do that for all caps? or just the Ecaps?

C (cap) 1 (cap #1) dot 1 (pin 1), hence C1.1 (got that)

and then the next pin of the same cap would be C1.2. (dont get it, the next pin as in the next wire?)

As the cap is dual and the case is probably the negative
(so the Ecap itself is the negative if there is no blk wire to the chassis?)

you could make C1.1 case (usually goes to chassis) and the C1.2 the first wire (positive), then C2.1 again is the case of the same cap and the C2.2 is the second wire (positive).
(Ok so it is then C3.1 case C3.2 3rd wire positive? And if the third wire went to pin 5 it would be C1.5?)
I am so lost...