bloke wrote:I don't have any "proof" of what I suspect...I'm only following strong evidence.
There DEFINITELY WERE some Conn CC tubas (same small bore size and same approximate body size/shape) that DEFINITELY were NOT made with Olds parts. The Conn-made ones (different model numbers) had chunkier/thicker-walled/shorter pistons (not as well-made, imo) valve sets, and (I'm thinking) maybe (...??) 18" bells, rather than 16" bells.
Someone, please, give us the model numbers ( _J) of those NON-Olds Conn CC tubas (those that I personally first saw around the early spring of 1979 at a Kansas-Colorado music educators' convention in Denver...Marty Erickson was hanging out at the Conn booth with the rep) that definitely were POST-Olds parts production...
The 3J was the CC with the 18 inch bell.
The 2J was the CC with the 16 inch bell and the "
Olds compatible" parts. I would be willing to bet that the 2J is primarily an
Olds 099 with the inner bows shortened. The outer wrap seems to be the same size as a 2J. So in other words, I think that the parts sharing is pretty significant.
I used to have the valve caps off of an
Olds "Ultratone" (or maybe it was Duratone) drum corps bugle. They were identical in fit and appearance to the valve caps on the 2J. I think I sent them with the 2J when I sold it.