Generator question

[ALLWAGONS]

So I have 3 small diameter 12v generators, 2 are in working condition and one needs help. Maybe a rebuild.

I also have a few of these 12v small diameter NOS generators (middle one) that resemble more my 6v type 3 generator.

Does anyone have any experience with these suckers? can parts interchange? Heard the shielded bearings are hard to get, also, these type 3 looking generators read 14v 11A, can that be increased?

It would be awesome to use on my early type 34 and squareback, or to use parts to rebuild.
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