Sorry, my last post was out of sequence - I missed some earlier ones while on vacation.
If elcraigo has a spare (must have been a replacement or upgrade at some time?) that would be the easiest. I'm prett sure Doc B doesn't have any, but my parts stash is so disorganized, there may be one in there somewhere. I'll look around too. Since it would be identical to the originl, there is no need to change the good amp.
The second option is to make a special order for the PT-2, our most recent Paramour transformer. It's out of production but we can still order small quantities. This would require some re-wiring and a different high-voltage supply - fullwave bridge vs. center-tapped in the Hammond. It's different enough that I would recommend changing both transformers, though that's not strictly necessary. It's not very complicated but we have not written down instructions for this.
The third option would be an experimental use of the PT-7 with DC filament supply - I don't recommend it because I have not tried it yet, and it's a major re-wiring.