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Weird Valve
Posted: Tue Jun 07, 2011 12:07 pm
by TheHatTuba
Re: Weird Valve
Posted: Tue Jun 07, 2011 12:23 pm
by Kevin Hendrick
Dang, there's a scary-lookin' object! OK, let's see ...
(a) playing 6 times as loud?
(b) beating on things and digging in the dirt?
(c) each input tube (straight) corresponds to two output tubes (curved), so -- apparently -- some kind of A/B switching device. 12-belled euphonium, anyone?
Re: Weird Valve
Posted: Tue Jun 07, 2011 12:31 pm
by TheHatTuba
Kevin Hendrick wrote:
Dang, there's a scary-lookin' object! OK, let's see ...
(a) playing 6 times as loud?
(b) beating on things and digging in the dirt?
(c) each input tube (straight) corresponds to two output tubes (curved), so -- apparently -- some kind of A/B switching device. 12-belled euphonium, anyone?
Could be an ice tray
Re: Weird Valve
Posted: Tue Jun 07, 2011 12:34 pm
by corbasse
It could be a part of some omnitonic horn, but the details don't seem right for the horns I know of.
Re: Weird Valve
Posted: Wed Jun 08, 2011 3:55 pm
by J.c. Sherman
This is a french horn mechanism for a horn in two keys. The rotor has two positions, with both tubes from each of the three valves passing through it; up, it goes through one length, down for the other. A more modern variant of this system is used on full double instruments of Lidl and others. There's a double tuba which was also built with a similar, though better designed - mechanism.
This was never widely employed.
J.c.S.