TromboneChat

I was looking through Facebook, and there as an early Schargel with a rotary valve mounted with the cap facing down and the linkage coming from the top.

Is there a practical reason more manufacturers don't do this? I'm not sure how difficult it is to manufacture, but I feel like it would be a good alternative to adding extra bends to the rotor tubing in certain cases.

Pics would be helpful, but sounds like the same concept as an axial

Edit: Oh, i thought "with the cap facing down and the linkage coming from the top" meant actually facing down.

Germans like to do this-

https://www.trombonechat.com/viewtopic.php?f=13&t=18365

You are making the instrument wider, linkage may be harder to route as well. Not sure why I would choose this over the "normal" way, especially with modern larger valves.

Elow wrote: Thu Jan 07, 2021 2:54 pm Pics would be helpful, but sounds like the same concept as an axial

More like Hagmann

These are standard rotor valves. The valve ports are arranged in an "H" configuration.

To my knowledge in the beginning all Schagerl trombones had Hagmann valves. I had the opportunity to try one of their first bass trombones back in 2002/2003. Here’s a pic of it:

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The trombone in question in the original post, as well.as those by Pfretzschner and ThroJa are rotor valves in an H configuration.

Interesting, but could be tough to work on!

Reminds me of the "Walzenvalve" German tubas which have the rotors directly below the paddles, instead of on the other side of the horn. I mean there's no real rule regarding which direction the rotor has to face.

I cannot judge if the valve configuration for the Pretzschner and Throja trombones (and maybe others that are similar) is more difficult for technicians to work on. I can only say that all that I have seen and played myself had very well functioning and quiet valves and valve linkages. Of course this is not only a question of the configuration, but simply the build quality.