Posted by js on February 07, 2003 at 20:00:40:
In Reply to: New Euph. felts??? (Besson?) posted by Tindall on February 07, 2003 at 19:37:12:
I have some here, and they seem to be a vulcanized (rubberized) felt of some sort. Though they come in three different diameters, they are only available in one thickness, and are a b*tch to trim thinner.
The same thing can be found on Hirsbrunner tubas, from my experience.