Good point. I was concentrating on tube size, voltage and don't know AD. trying to use logic. Didn't work. The 47-53 wheel seems to have a "built in" bell? Is that right? Also don't know about how you would do the cancelling and horn, etc.
Maybe that's why they sell the clamp-ons.
The 54-56 would work on 57-59.
I guess a 47-53 guy could use a 54-56 wheel and so forth, to get a non clamp-on T/S.
