Yamaha V valve

[thomasa]

Hi! Anybody that has some info and/or experience on the Yamaha V valve? As I understand an attempt to construct their own kind of axial flow valve. Only sold in Japan, I think. /Thomas

[HawaiiTromboneGuy]

viewtopic.php?t=6821

[WilliamLang]

I played one for awhile - great horn!

[brtnats]

I’ve got one I played for several years that I’m going to sell (moved on to something more vintage). Valve throw is shorter than most axials I’ve played. Has a very ‘euphoniumesque’ quality to the sound at lower volumes that I really like.

[jonathanharker]

Would you be able to post some photos of the valve, on a plain white background, for use on Wikipedia? They need to be released with a free licence (public domain, CC0, CC-BY) and uploaded here: https://commons.wikimedia.org/wiki/Special:UploadWizard
So far the only thing I can use is this one, which Yamaha released:

But it doesn't have a nice close-up of how it works. FYI the default path includes a knuckle-kink, which isn't too bad, but is hidden in this image (you can just see it behind the valve, sticking out below the gooseneck).

[MahlerMusic]

I always thought of the Yamaha V valve as a rotating piston valve and not a Axial valve.

[UATrombone]

I always thought of the Yamaha V valve as a rotating piston valve and not a Axial valve.

+1
Same principle but different direction (horizontal instead of vertical).