Neptune wrote:Rick Denney wrote:If they are still offering the instrument with the 17mm bore for the 5th valve, they are hiding that light under a bushel.
Maybe they are rationalising production lines and do not want to make what is essentially a non-standard size valve set?
Rick Denney wrote:Neptune wrote:The 3100 J-L is actually shown as a variation on the 3099 J-L - click the tab underneath.
That still has the 19-21 mm graduated bore instead of 17-21mm as with the Symphonie and PT-9. Those letters apparently mean a lot, not that the meaning is explained.
If they are still offering the instrument with the 17mm bore for the 5th valve, they are hiding that light under a bushel.
Rick "assuming they don't really want to make them" Denney
Just because it's on the Internet doesn't make it true.

I think you guys are offering "engineering" answers to something a bit more obvious.
It's most likely the webmaster has just made an error here. It's quite unlikely that he or she is a tuba expert.
The pic of the JBL (3099/1/WGJ-L) looks just like a PT10. I believe the JBL instruments have different looking leadpipe and fifth valve setup.
While I do see a PT-11, I don't see the PT-10 at all, but maybe I missed it. I would have figured it to be a variation of the PT-11 or vice versa.
web people make errors all the time
(I already told Roger and he's trying to get it fixed):
http://www.wwbw.com/Meinl-Weston-6460S- ... 36788.wwbw" target="_blank
While the new website B&S is pretty, the tubas are certainly not organized the way I would. For example, the CC tubas are divided up based on valve type, piston and rotary. However, there are only two piston tubas listed. The PT6p is listed as a variation of the PT6 under the rotary section.
What I find kinda neat is the picture below under F tuba model 3099/1-L. The fifth valve is left thumb operated like older Symphonie F tubas. It also has the older B&S linkage. However, all the valves spin the same way and the bell has no krantz, so it's obviously not an old Symphonie.
