Posted by Bryant Parker on February 26, 2003 at 23:45:38:
Currently on E-bay there is a Mirafone tuba catalog from the 1950's. On its pricing page, it lists a tuning slide that converts CC models to BB flat. I have a 1965 186 5-U CC and wonder if anyone knows anything about such a tuning slide and if one is still available. Thank you. Bryant Parker